Sometimes the voice and actions can become feminine as well for some individuals. Another meta-analysis found that soy milk had a protective effect against prostate cancer [15]. 2. Advertisement Soy milk is a very popular non-dairy milk replacement, . Fortunately, soy is one of the most researched foods in the world, so we have plenty of data to draw our conclusions from. Please consult your physician prior to consuming any over-the-counter supplements, like a natural testosterone booster, and/or getting a prescription for a pharmaceutical medication. But there are other ways that men can, Soy was initially shown to negatively affect male rats and mice, including lowering testosterone, decreasing sperm count, and affecting litter size, First of all, rats and mice are not humans and therefore process food differently. Taku K;Umegaki K;Sato Y;Taki Y;Endoh K;Watanabe S; Soy Isoflavones Lower Serum Total and LDL Cholesterol in Humans: A Meta-Analysis of 11 Randomized Controlled Trials., The American Journal of Clinical Nutrition. ; Although they contain phytoestrogens, soy foods do not increase the amount of estrogen in men or women. A later study tested the effects of soy on 20 men for 83 days, and two of those men reported female-like changes in their bodies once the experiment concluded [10] . Isoflavones are antioxidant compounds that may prevent some types of cell damage, The binding effect of isoflavone that mimics estrogen may help improve bone density, improve memory impairment, and reduce hot flashes in older women, Can soy reduce the occurrence of hot flashes in menopausal women. Soy bean is almost complete protein, but it lacks a few essential amino acids (essential amino acids can't be made in the body and must come from food). Well, we have the science-backed evidence that gives the true answer on whether the effects of soy consumption are good or bad for mens health. People who consumed more isoflavones, found in tofu and soy milk, had an 11 percent lower risk of type 2 diabetes than those who didn't eat much, according to a 2017 . However, the subjects involved consumed an extraordinarily high and unrealistic amount of soy on a nutrient-deficient dietabout nine times the amount consumed by most older men [1]. Please consult a healthcare practitioner before making changes to your diet or taking supplements that may interfere with medications. 13 Sneaky Signs Your Testosterone Is Too Low, Neither soyfoods nor isoflavones warrant classification as endocrine disruptors: a technical review of the observational and clinical data. Several studies have linked soy consumption in animals to digestive issues that occur as a result of reductions in the gut's barrier function. We may receive commissions on purchases made through links on our site. Metabolism, 44(9), 1146-1152, Neacsu, M., Fyfe, C., Horgan, G., & Johnstone, A. M. (2014). Soy has played a role as a dietary staple in Asia and dates back many centuries. Zampelas, Antonis. Soy is a protein that is found in soybeans, a type of legume that is native to East Asia. In fact, adding soy protein to a healthy diet reacts positively with the microorganisms working within the digestive tract and stomach to create a healthier environment that contributes to a healthy gut, Hamilton-Reeves JM;Vazquez G;Duval SJ;Phipps WR;Kurzer MS;Messina MJ; Clinical Studies Show No Effects of Soy Protein or Isoflavones on Reproductive Hormones in Men: Results of a Meta-Analysis.. This same effect may also block the overproduction of estrogen, lowering your risk of certain cancers, but scientists must perform further research in this area [8]. Nutritional profile and health benefits It can also cause some men to have emotional mood swings reminiscent of a hormonal woman, although this effect has little scientific evidence to back it up. People think soy is bad for men because of its high isoflavone content- a type of phytoestrogen (plant estrogen). Urology,72(1), 220-224. doi:10.1016/j.urology.2007.11.06, Kraemer, W. J., Solomon-Hill, G., Volk, B. M., Kupchak, B. R., Looney, D. P., Dunn-Lewis, C., & Maresh, C. M. (2013). A study by Martinez and Lewi, however, reported a 60-year-old man who drank 6 quarts of soy . Isoflavone Supplements for MENOPAUSAL Women: A Systematic Review.. . No. Geographical differences in semen characteristics of 13 892 infertile. Soy milk is a beverage that is made form soybeans the same legumes that are used to make tofu and other soy products. As part of your subscription and as medically indicated, physicians prescribe medications, and recommend supplements that are delivered to you from the comfort of your home. Because men's bodies produce estrogens too but in much lower amounts. Though evidence supporting soy lecithin as a supplement is somewhat limited, the evidence backing choline could steer people toward this food additive in supplement form. This can have so-called "feminizing effects" which cause guys to lose their appetite for sex ( 3 ). However, animal meat plays a critical role in all human civilizations, and making the jump to a soy-based diet many not be optimal for human health. Research shows that soy is probably ok for human health. However, taking in large amounts of highly processed soy products is probably not the best idea for most men. He J;Gu D;Wu X;Chen J;Duan X;Chen J;Whelton PK; Effect of Soybean Protein on Blood Pressure: A Randomized, Controlled Trial.. Soy products, such as milk, yogurt, and tofu, have a nutritious advantage over dairy and other animal products. Just one tablespoon of soy sauce contains 2.3 grams of sodium! Research indicates that including a diet rich in soy may reduce the risks of some men developing prostate cancer which is the second most common cancer occurring in men worldwide [19]. 99 male test subjects being treated for infertility were found to have been on a continuous soy diet for three months. Therefore, at this time it appears safe for men to consume normal quantities of soy protein and soy products (1-2 servings daily if desired as part of a meal). Researchers believe that soy induces changes in the fatty acids in your bloodstream, and these changes reduce your risk for cardiovascular disease. Choose an answer to reveal what studies have found, Isoflavone, which is found in soy, can reduce hot flashes in menopausal women, Click on your choice to reveal the answer, Soy isoflavones shows to have a greater effect on people with hypertension, Get our weekly newsletter about the most recent publications and reviews in the Soybeans are a high-protein, plant-based food containing all nine essential amino acids and packed with nutrients like fiber, iron, vitamins, minerals, and antioxidants [11]. 2017, www.ncbi.nlm.nih.gov/pmc/articles/PMC5409663/. Important Disclaimer: The information contained on Healthy Focus is intended for informational and educational purposes only. One caveat: some soy products contain estrogen-like chemicals that could have adverse effects. But that didnt stop some from jumping to the conclusion that if soy intake has a negative impact on lab rats, they surely have similar effects on humans. But there are other ways that men can increase testosterone naturally without worrying about increasing estrogen. Soybean products can be either fermented or unfermented. Urology,114, 95-98, Thrane, M., Paulsen, P. V., Orcutt, M. W., & Krieger, T. M. (2016). The Effects of Soy and Its Components on Risk Factors and End Points of Cardiovascular Diseases.. Numerous studies show that people who consume soy products have a lower all-cause mortality risk, and are less likely to have heart disease, type 2 diabetes or even cancer. A later study tested the effects of soy on 20 men for 83 days, and two of those men reported female-like changes in their bodies once the experiment concluded [10]. However, soy milk is probably an ok choice for most people. One study performed in 2005 found that soy sauce was actually beneficial for human health. There are many health benefits of soybeans and soy protein when included in a balanced diet. Phytoestrogens bind to some of the same receptors in the body that our own estrogen does, says Vancouver-based Matthew Nagra, ND, who specializes in plant-based and vegan nutrition. There is, in fact, no robust evidence that soy causes elevated estrogen levels in males or indeed, has any significant effect on hormone levels. Soy, the man killer Gyno from too much soy protein Male breasts from hormone imbalance The Journal of Nutritional Biochemistry,7(9), 481-487. doi:10.1016/0955-2863(96)00093-9. There are several types of soybean products described as either fermented and unfermented. Some people think that eating soy is terrible for your health and will crush your bodies natural testosterone production. May Cause Toxic Buildup. Today, my uncle gifted my sister, 11 year old, a brand new phone. Soy, it turned out, contains estrogen-like compounds called isoflavones. Research shows (1) that its safe to consume no more than 100 mg of isoflavones per day. Any statements made on this website have not been evaluated by the FDA and any information or products discussed are not intended to diagnose, cure, treat or prevent any disease or illness. Food manufacturers use this as a protein filler to top up protein counts in food products. Overall, soy is probably an ok food for men. Sucralose side effects: All You Need To Know. In other words: Eating a healthy diet that includes soy wont get you anywhere near the level of these men. However, using a soy protein powder once in a while probably wont destroy your progress in the gym, and it may have some heart-healthy benefits as well. As men grow older, their levels of testosterone drop but estrogen levels increase. Testing has shown that eating soy protein and foods containing soy isoflavones does not increase estrogen levels or decrease testosterone levels in men. What happens when you eat too much soy? Phytoestrogens are structurally similar to human estrogen and can weakly mimic or block estrogen activity in the body. Avoid soy supplements. We focus on finding the most accurate information from the scientific source. , but because of the estrogen-like ingredient isoflavones and the negative effect that high estrogen has on men, some jumped to the conclusion that soybean products are harmful, which is simply not true. Not only is eating soy safe for your hormones, soy is good for your hear, builds muscle, and decreases your prostate cancer risk. Soybeans are not bad for men, but because of the estrogen-like ingredient isoflavones and the negative effect that high estrogen has on men, some jumped to the conclusion that soybean products are harmful, which is simply not true. Ahn-Jarvis, J., Clinton, S. K., Grainger, E. M., Riedl, K., Schwartz, S. J., Lee, M. L. T., & Vodovotz, Y. The daily iron intake in soy is also significant for those with minor iron deficiencies. 2021 . In humans, soy consumption may contribute to leaky gut syndrome, which can cause inflammation and problems with digestion like excess gas and bloating. Isoflavones have just a tiny fraction of the strength of estrogen, says Nagra. It would be very difficult for humans to consume the same amount of soy in relation to what scientists provided for the animals in these experiments. In addition to hormonal effects, serious long-term health conditions and illnesses can be attributed to high soy consumption. The American Cancer Society's dietary guidelines note that consumption of soy foods is not only safe but "may even lower breast cancer risk." Another study in the journal Nutrition & Metabolism has also shown that increased soy consumption correlates to a reduced risk of prostate cancer for men. In this article, we detail what soy is, explain the effects of this protein-packed legume on testosterone, and finally break down the one ingredient that started this false rumor in the first place. Absolutely not! (2015). If so, youre in the perfect place. In a review of 35 studies, soy isoflavone supplements raised estradiol (estrogen) levels in postmenopausal women by 14% ( 14 ). Soy is generally a good source of protein . Eat Better Get Fit Erectile dysfunction results from a number of factors, including low testosterone, which soy does not affect. Soy milk is probably not the best drink in the world if your goal is to raise testosterone levels. To avoid soy and its detrimental effects start checking labels as an important step in maintaining male virility and health. Soy does not turn men into women, cause infertility, prostate cancer, man-boobs, or affect reproductive hormones. Speaking to reporters at the White House Thursday afternoon, Press Secretary Karine Jean-Pierre attempted to explain why WNBA player Brittney Griner was released from Russian . What's more, soy may reduce the risk of prostate cancer in men. Soy is high in estrogen. Dwyer, J. T., Goldin, B. R., Saul, N., Gualtieri, L., Barakat, S., & Adlercreutz, H. (1994). Hogervorst, E. (2014). Lets take a quick review of the research. Men in Asian countries, especially Japanese men, consume the most soybeans globally, and some eat anywhere between 60-120 grams of soy per day without any adverse side effects. Journal of the American College of Nutrition,32(1), 66-74, Lao, M., Harnisch, B. Isoflavone is a phytoestrogen compound found in soybeans with estrogen-like effects, but these effects are much weaker than estrogen found naturally in the body. Soybeans contain a high concentration of a compound called isoflavones, a type of plant estrogen also known as phytoestrogen. Why soy is bad for males? On one hand, it's rich in nutrients, and diets containing it appear to be linked to health benefits, such as lower blood sugar. It may be better to consume whole sources of soy like edamame, rather than soy ultra-processed foods since these can be high in sodium. & Dipaola, R. S. (2007). Additionally, why is soy bad for men? Soy is arguably one of the most controversial nutrition topics. Too much of anything, even if its healthy, could have adverse side effects and lead to health problems. Potential Downfalls of Soy and Soy Products, Soy, in general, is a healthy food product when consumed in its most natural form, but when soy is over-processed into food such as soy protein bars, soy-infused veggie sausages, and soy burgers, thats when these products are more questionable and can lead to digestive issues such as nausea, constipation, and bloating. Estrogen, erroneously connotated as a female-exclusive hormone, plays an important role is the male bodys hormone equilibrium (Thrane, Paulsen, Orcutt and Krieger 2016). However, the impact of isoflavone is much weaker and does not affect estrogen levels [4]. Here, experts get down to the bottom of the controversy, explaining the pros and cons of soy and how it can fit into a balanced diet. Cancer Prevention Research, 1-29, Moundras, C., Remesy, C., Levrat, M. A., & Demigne, C. (1995). This was just a correlational study, meaning that people who eat soy may live longer because they are doing other things that are good for their health, such as eating a healthy diet or exercising several times per week. Farmers first started growing soy in the 11th century. However, many of the modern day foods that use soy are probably not as good for your overall health. Soy was initially shown to negatively affect male rats and mice, including lowering testosterone, decreasing sperm count, and affecting litter size [9]. but in lower amounts, which is why many wonder if soy milk is bad for people AMAB, per the Mayo Clinic. However, it wasnt introduced to Europe and North and South America until the 1700s. One of the best ways you can eat high-protein soy is as a replacement for animal proteins that can be higher in saturated fat (such as red meat)thats one reason why soy is considered a heart-healthy food. Soy lecithin is a generally safe food additive. If you want to avoid GMO-based soy lecithin, you can opt for food products using the organic version of the ingredient. Problems arise when soy (or other foods) becomes the dominant food in your diet. In other words, soy is one of the only plant foods that contains all of the proteins that your body needs to build muscle mass and stay alive [1, 2]. Likewise, we do not provide medical advice, diagnosis, or treatment. About Us · Contact Us · Disclaimer · Privacy and Cookie Policy. Soy, or soya bean, is a type of leguminous plant that primary grows in eastern parts of Asia. Is it a good food for men who are trying to optimize their testosterone levels? Soy contains isoflavones, which are phytoestrogens: plant-based compounds that have a similar structure to estrogen. Testosterone.org makes no claims that the products referenced can cure, treat or prevent any conditions, including any conditions referenced on its website or in print materials. Not only is eating soy safe for your hormones, soy is good for your hear, builds muscle, and decreases your prostate cancer risk. Other human studies have concluded that soy foods are safe to eat and beneficial to any healthy diet. Soy and Estrogen: How Does It Affect Men? Men in Indonesia and China with tofu in their diets were found to have lower memory functions and an increased risk of dementia (Horgervorst 2014). Large meta-analyses (4) found that soy did not affect sperm or semen in men. The binding effect of isoflavone that mimics estrogen may help improve bone density, improve memory impairment, and reduce hot flashes in older women [7]. Still, some men worry that consuming phytoestrogens may reduce their testosterone levels. There are numerous scientific studies proving that neither soy foods nor soy protein affect hormones in men in any way. Soy does not have a hidden dark side and is not a dangerous food for men. Soybeans are a plant-based protein with a truckload of vitamins and minerals such as potassium and antioxidants, all essential for reducing the risks of many severe conditions and chronic diseases, as well as fiber to keep you full and reduce cravings. Theres no indication that tossing tofu on your stir-fry or sharing a bowl of edamame will negatively affect your hormones. However, studies conducted do not clarify if these results are only in those suffering from high blood pressure or if healthy adults experience the same benefits from increased isoflavone intake. . Eat a variety of foods and protein sources. It increases bone density and muscle mass but it also has positive effects on the heart and brain as well as enhancing the libido. In fact, most studies show that soy consumed in moderation has beneficial effects on mens health as well as women and children, proving theres no reason for most people to avoid soy. The only studies that show a negative outcome were done on people and animals who were consuming almost all of their calories from soy. Cancer Epidemiology Biomarkers & Prevention, 16(4), 829-833. doi:10.1158/1055-9965.epi-06-0882men. Soy does not negatively affect testosterone in men. For example, a recent meta-analysis found that incorporating soy milk into your diet may reduce your risk for cardiovascular disease [14]. In other words, it did not have a big impact on the amount of testosterone or estrogen that men produce [10, 11, 12]. Because it's present in such small amounts in food, it's unlikely to be harmful. Tossing a hunk of tofu on the grill doesnt have the same panache as a rib-eye, but thats not the reason most men looking for a protein fix steer clear of soy. Consumption of soy isoflavone enriched bread in men with prostate cancer is associated with reduced pro-inflammatory cytokines and immunosuppressive cells. ; Unless consumed in excess quantities, soy proteins are . For those who take fitness seriously, using soy proteins could hinder or reverse progress made at the gym. There are numerous scientific studies proving that neither soy foods nor soy protein affect hormones in men in any way. , Oxford University Press, 1 Sept. 2010, academic.oup.com/biolreprod/article/83/3/488/2530146. Eating too much soy on a daily basis can cause a man to become more feminine, such as gynecomastia, aka male breast growth or man boobs. Your access to Testosterone.org is subject to our full disclaimer and terms of use. This is a component that prevents the thyroid from being able to absorb iodine. Rizzo, Gianluca, and Luciana Baroni. ; Soy proteins have many nutritional benefits to the body. Answer (1 of 5): Soy for any gender is bad news. Soy has been marketed as asuperfood but there is controversy over this product. Want to make soy part of your diet? , U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/31278047/. , U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/29300347/. That being said, its very difficult to overeat soy. Not all protein sources are equal and some forms of protein are better than others. , U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/15998749/. While there can be some health benefits for women when it comes to soy, males should take more caution. The active ingredient in soy, isoflavones, behaves like estrogen. However, it should probably be avoided for men looking to optimize their testosterone levels. . Soy isnt the worst food in the world, and its probably ok to have once in a while. There is no data to suggest that soy, when consumed in normal (aka not excessive amounts) will cause excess breast tissue to grow (10). If your goal is to maximize your testosterone levels and your physical performance, then there are probably better foods that you can eat. Soy protein isolate is probably an ok food choice to have every now and again, and it may even be a good substitute for vegan and vegetarian athletes who still want to perform at a high level. No. Tofu might be bad for you, because it is refined food. Natural soy products like tofu or edamame could replace red meat and other animal sources of protein higher in saturated fat," says dietitian Kathy McManus, director of the Department of Nutrition at Harvard-affiliated Brigham and Women's Hospital. For example, in Japan, older adults consume 30 to 50 mg per day of isoflavones, while in the U.S., its only a few milligrams per day, shows research (1). Soy foods also provide a lean source of protein. All Right Reserved. For example, people following a vegetarian or vegan diet have a high risk of developing anemia mainly because most iron in a traditional diet comes from animal protein. However, soy sauce still might not be the best food for you. (1996). Hypogonadism and erectile dysfunction associated with soy product consumption. Soy milk side effects in males have a lot. Soys bad publicity stemmed from two case studies that suggested excessive amounts of the protein from soybeans appeared to impact hormones. Long-Term Effects of Phytoestrogen Daidzein on Penile Cavernosal Structures in Adult Rats. The soy myth has been around since the 1950s when animal studies on soy first began but has subsequently been debunked multiple times since. Isolated soy protein supplements like pills and powders are not as healthy as soy foods and should not be taken for an extended period. Its important to understand that these studies often use soy protein powders and other isolated forms of soy. For example, tofu, soy sauce and soy lattes are known to raise estrogen levels in men. Bahadoran, Zahra, et al. Why soy is bad for males? Male hormones Low libido and muscle mass, mood changes, reduced energy levels, and poor bone health are all associated with low testosterone levels.The notion that the phytoestrogens in soy disrupt testosterone production and reduce its efficacy in the body might seem plausible on the surface. Not only do soybeans initiate the lowering of blood glucose levels, but isoflavone may help lower insulin resistance by improving the bodys tolerance for blood sugar and improving insulin sensitivity [17]. You should also watch out for added ingredients in some soy foods, including added sugar, excess salt, and other chemicals included in highly processed foods. Goodin, S., Shen, F., Shih, W. J., Dave, N., Kane, M. P., Medina, P., Lambert, G.H., Aisner, J. What Are Normal Testosterone Levels By Age? Why is soy bad? The main danger from soy to the thyroid is the goitrogens it contains. Their testosterone levels increased 2 weeks after discontinuing soy consumption. An Unusual Case of Gynecomastia Associated with Soy Product Consumption., Endocrine Practice : Official Journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists. Methionine deficiency in rats fed soy protein induces hypercholesterolemia and potentiates lipoprotein susceptibility to peroxidation. Another study performed in 2007 found that soy protein was comparable to other protein sources, like whey and casein, for helping men recover following an intense resistance training session [18]. Huang, Y., Pan, L., Xia, X., Feng, Y., Jiang, C., & Cui, Y. Soy can interfere with certain medicationsAllergy. In general, soybeans are a high protein, low carb food, beneficial for those suffering from hypertension [15]. I'm a 15 year old male. Soy is marketed as a protein source for men and women alike. The only studies that show a negative outcome were done on people and animals who were consuming almost all of their calories from soy. AJ;, Michelfelder. A study in 2007 provided male test subjects over the age of 18 two scoops (56g) of soy protein powder a day for 28 days. Fermented soy protein has 83% per cup, making this a great meal plan addition for athletes, weight lifters, resistance training, and anyone wanting to increase muscle mass. Arab Journal of Urology,16(1), 3-9, Hajos, G., Gelencsr, E., Grant, G., Bardocz, S., Sakhri, M., Duguid, T. J., Newman, A.M.,Pusztai, A. This compound can bind to estrogen receptors and mimic estrogen properties found in the human body. But there was one study conducted on humans that resulted in hormonal disturbances. , German Medical Science GMS Publishing House, 15 Dec. 2014, www.ncbi.nlm.nih.gov/pmc/articles/PMC4270274/. Cumulative Meta-Analysis of the Soy Effect Over Time. Fortunately, the effects of plant estrogens on mens health are very positive. Disclaimer: The contents of Testosterone.org are for informational and educational purposes. It was found in a 2014 study (Horgervorst 2014) that as a result, these Asian men are 10% more likely to experience erectile dysfunction. Soy is also a protein powerhouse, an essential component of sports nutrition, and a necessity for vegetarians everywhere. Studies suggest soy's beneficial role in menopause. Always consult your healthcare provider with any questions. , MDPI, 24 Nov. 2016, www.ncbi.nlm.nih.gov/pmc/articles/PMC5188409/. Jargin, Sergei V. Soy and Phytoestrogens: Possible Side Effects.. Soybeans have about 10g of fiber per cup, which can help lower cholesterol in other foods [14]. Soy and Health Update: Evaluation of the Clinical and Epidemiologic Literature.. . Soy is a healthy addition to any diet and includes a slew of nutrients, vitamins, and minerals that you need to maintain a healthy lifestyle. No. Heres a breakdown of common soy food products to give you an idea of their nutritional value: There are several types of soybean products described as either fermented and unfermented. Statements regarding Testosterone.org products are the opinions of the individuals making them and are not necessarily the same as those of Testosterone.org. But what does the research say about it? , and estrogen-mimicking effects. A balanced diet containing soy may lower cholesterol, improve blood sugar and blood pressure, protect your heart from disease, and may prevent some men from developing prostate cancer. Men continue to rely heavily on animal foods to meet their protein requirements, but being more plant-focused has definite advantages. No. Antioxidant Action of Soy Isoflavones on Oxidative Stress and Antioxidant Enzyme Activities in Exercised Rats.. During processing, microorganisms are added to break down the nutrients in the soy, increasing the protein levels and making it easier to digest. In another, a 60-year-old man who came to the doctor for breast growth reported drinking almost 100 ounces of soy milk per day (3). , U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/18558591. But is soy bad for men? Similarly, Asian men, such as those from China, India, Japan and Indonesia, consume higher amounts of soy compared to American men. (2008). Most studies show that soy milk is no better or worse for men than any other soy product. Appetite control and biomarkers of satiety with vegetarian (soy) and meat-based high-protein diets for weight loss in obese men: a randomized crossover trial. Soy sauce appears to lower systemic inflammation and reduce your risk for developing certain types of cancers, such as liver cancer [21]. Why soy is bad for males? Testosterone.org follows the strictest sourcing guidelines in the health and hormone replacement industry. It would be best if you watched out for highly processed foods containing soy, such as soy protein bars, soy powders, and soy meat substitutes. Soy protein also supports normal blood cholesterol levels and is a good choice of high-quality, plant-based protein for those wanting to increase muscle mass. Many have wondered if soy milk is bad for men, but research shows that most people assigned male at birth, as well as babies and children, are safe to eat soy. We strive to never have a piece of inaccurate information on this website. , MDPI, 24 Mar. , U.S. National Library of Medicine, pubmed.ncbi.nlm.nih.gov/14628433/. The internet would have men thinking soy is the devil. However, elevated levels of estrogen stunts muscle development, lowers testosterone, increases cortisol levels, causes gynecomastia, decreases libido, and even reduces sperm production. So before you swear off soy, its worth digging into the details. Testosterone.org 2022. You must consult your own medical professional. The growing popularity of this industrial product stems from the fact that its cheap to produce. It is really a mixture of different foods soy sauce is made from a fermented paste of soybeans, roasted grain, brine, and aspergillus oryzae or aspergillus sojae molds [20]. There is also little evidence to suggest that soy negatively impacts mens reproductive systems. The science is clear: Soy is safe (and btw, it doesn't cause man boobs), Common Conditions That Mess With Your Hormones. Soy, in general, is a healthy food product when consumed in its most natural form, but when soy is over-processed into food such as soy protein bars, soy-infused veggie sausages, and soy burgers, thats when these products are more questionable and can lead to digestive issues such as nausea, constipation, and bloating [20]. Why is tofu bad for you? Male hormones Low libido and muscle mass, mood changes, reduced energy levels, and poor bone health are all associated with low testosterone levels. Now that we know soy is not a bad guy in this story and, if taken as recommended, has no adverse effects on mens health, lets take a look at some of the basic soy facts and how this little legume can transform your diet. Soy protein isolate packs the most protein per serving, which makes sense because it's processed to be a concentrated source of this nutrient. While there are worries that soy may affect testosterone, research has found that soy consumption did not decrease reproductive hormone levels (4). However, there are also studies showing how soy directly improves human health even if it is just a little bit. Numerous studies have shown that soy is an inferior source of protein and can have negative effects on men. Promescent Has a Cytotoxic Impact on Fresh Human Sperm In Vitro. Environmental Issues in Maintaining Reproductive Health. Furthermore, the rats and mice involved in these studies consumed a diet primarily consisting of only soy in extremely high amounts. ; There are many types of soy food, varying based on cooking, fermentation, and preparation. His testosterone levels also dropped drastically. Extremely weakly. However, there is a lot of real-world evidence that men who consume more soy products have higher estrogen levels than men who dont. 1 1.Soy for Men: The Good, the Bad, and the Ugly - Fitbit Blog; 2 2.Straight Talk About Soy | The Nutrition Source; 3 3.Is Soy Bad for Men: The Truth About Soy Products and Testosterone; 4 4.Neither soy nor isoflavone intake affects male reproductive hormones; 5 5.What Men Should Know About Soy - Herbalife Nutrition Isoflavones have been linked to a lower risk of colon/colorectal cancer, digestive tract cancer and may protect against cancer of the large intestine, stomach, and lungs [18]. That's true regardless of gender. There are also several studies showing that soy decreases your overall all-cause mortality risk, and may even reduce your risk for cardiovascular disease and certain cancers. Effects on thyroid function. Myths about soybeans and soy consumption have been around for decades, but study after study proves that these rumors are absolutely not true. Soy is not toxic to cats, but it should not be . Soy protein powder probably isnt your best bet. However, most modern-day soy products are heavily processed, and contain large amounts of phyto-estrogens which have been shown to increase estrogenic effects in men. Indeed, a literature review performed in 2022 found that soy is generally safe for human consumption [9]. During processing, microorganisms are added to break down the nutrients in the soy, increasing the protein levels and making it easier to digest. A., & Honig, S. C. (2018). Other studies show that soy has virtually no impact on mens risk for prostate caner [13]. Why soy is bad for males? Soy Isoflavones and Cancer Prevention.. It may fight diabetes. Including the recommended amount of soy is a great way to increase your plant protein, especially for people who follow a vegetarian diet, vegans, or anyone with underlying health concerns. Several recent studies show that soy is a heart-healthy food, and decreases your risk for cardiovascular disease [4, 5, 6]. Our content is continually monitored by an internal peer-review process to ensure accuracy. However, there are probably other foods that you should focus on if your goal is to raise your bodys natural testosterone production. After careful analysis, his soya consumption was linked to erectile dysfunction and hyposexuality. Incorporating a diet with soy isoflavones may reduce the levels of bad cholesterol and lower blood pressure [6]. This includes thyroid irregularity, bladder cancer, prostate cancer and dementia, particularly those over 65. The prevalence of soy as an ingredient in everyday foods will lead to excessive consumption. Fermented soy is arguably the healthier form of soy. Yes, Testosterone Injections Actually Build Muscle. One cup is 189 calories, 16.9g protein, 8.1g fat, and 8.1 g of fiber. The Food and Drug Administration recommends eating 25 grams of soy a day for a balanced diet, equal to 2-4 servings per day [2]. These metabolic processes also help with cognitive and physical development. Americans have taken this out of control as if a lot of soy is better. The key word here is weakly. The truth is soy has very little impact on mens sexual health, or their testosterone production. The truth is somewhere in between. A half-cup of raw tofu has 94 calories,10g protein, 6g of fat, and 434 mg of calcium. Indeed, one recent study found that people who eat soy had lower total cholesterol, LDL cholesterol, and triglycerides [7]. Some people believe that soy isoflavones may raise the risk of breast or endometrial cancer. The American journal of clinical nutrition,100(2), 548-558, Sutton, M., Hunn, C., Summers-Colquitt, R. B., Chen, S. H., Kavoussi, S. K., Kavoussi, K. M., & Kavoussi, P. K. (2018). Nettleton, Joyce A, et al. Soy is similar to alcohol in this respect its probably not that bad for you when consumed in small quantities. The reason people say soy is bad for you is because it contains what are known as phytoestrogens. Soy is one of the most controversial foods in the world. Stick with 1 to 2 servings of whole soy foods (1 serving = 1 cup soy milk, cup cooked soy beans, cup edamame, 1 ounce soy nuts or 2 ounce tofu). But even then, you may still be exposed to certain toxic chemicals. Soy isoflavones are often thought to mimic the female reproductive hormone estrogen., and cancer risk. Yoon, Gun-Ae, and Sunmin Park. , MDPI, 1 Nov. 2019, www.ncbi.nlm.nih.gov/pmc/articles/PMC6893684/. It was once thought that including soy protein in your daily diet increased your cancer risk, but over time and with more research, the opposite is true. Soy proteins do not increase or reduce testosterone levels in men and women. AP Photo/Susan Walsh. There are those who think soy is one of the best protein sources you can use, and others who say that it is terrible for your health especially your testosterone levels. Danger Soybeans are packed with iron about 9 mg per cup, so much so that a cup of soybeans contains 49% of the recommended daily intake of iron. Foods like tofu, tempeh, edamame, miso soup, and soy milk are made from soy, a protein isolated from soybeans. Summary. Consuming soy protein provides that added boost of iron needed. No. Some studies indicate excessive amounts of soy can cause men to become more feminine, while others indicate it may decrease the risk of prostate cancer. Consumption of high-quality proteins like meat and whey in favour of lower-quality proteins like soy can lead to a reduction of muscle mass or even atrophy. Tofu is made from soy bean. In fact, adding soy protein to a healthy diet reacts positively with the microorganisms working within the digestive tract and stomach to create a healthier environment that contributes to a healthy gut [21]. But these beliefs are not supported by the latest scientific evidence. Dietary L-ARGININE Intake and the Incidence of Coronary Heart DISEASE: Tehran Lipid and Glucose Study.. Soy isoflavone may reduce LDL, the bad cholesterol by 3% 6%, which doesnt sound like much, but every little bit helps when it comes to improving your lifestyle [14]. blurred vision. Furthermore, the rats and mice involved in these studies consumed a diet. Isoflavones are antioxidant compounds that may prevent some types of cell damage [5]. and packed with nutrients like fiber, iron, vitamins, minerals, and antioxidants, Only 10%-15% of fat from soy is saturated fat, lowering your risk of heart disease. Similar to whey protein, soy may increase energy and improve recovery time during resistance exercise training and other athletic workouts. May reduce menopause symptoms Since soy acts as a natural estrogen, it may help reduce these symptoms. Fermented soy protein has 83% per cup, making this a great meal plan addition for athletes, weight lifters, resistance training, and anyone wanting to increase muscle mass. 10. Male hormones Low libido and muscle mass, mood changes, reduced energy levels, and poor bone health are all associated with low testosterone levels.The notion that the phytoestrogens in soy disrupt testosterone production and reduce its efficacy in the body might seem plausible on the surface. , BioMed Central, 15 Mar. Two studies tested this theory (Habito et al, 2000 and Mitchell et al, 2001) and found that soy intake did not have a significant effect on estrogen levels in men. All of our content is written by people with a strong science background, including medical researchers. As for the one study that found two men having feminizing of the chest? However, if you are trying to maximize your bodies natural testosterone production, then you should probably keep soy out of your diet. Farrinstitute is reader-supported. Soy lecithin is a generally safe food additive. However, Fortunately, the effects of plant estrogens on mens health are very positive. Very little research has been performed on soy sauce. A literature review from 2019 found that people who eat more soy tend to have a decreased all-cause mortality risk [3]. Short women are perceived as more petite and feminine, which is an attractive trait for women. Prostate cancer is the most common cancer in men in the U.S., except for skin cancers, according to the American Cancer Society. Wilson calls it an "urban legend," adding that if the two compounds were the same "there would be a lot of men in need of bras!". Their consumption of soy protein on daily basis were exposing them to unanticipated and highly adverse effects of high levels of estrogen in their body. Overall, the research is pretty clear that soy is an ok food to eat, and it will not increase your risk for heart disease, cancer or other diseases. People have many different opinions about soy. Applegate CC;Rowles JL;Ranard KM;Jeon S;Erdman JW; Soy Consumption and the Risk of Prostate Cancer: An Updated Systematic Review and Meta-Analysis.. No. It also contains less saturated fats than meats like beef and pork, which are essential to look out for while managing your cholesterol. No, James Cameron, Testosterone is Not a Toxin You Should Vanquish. JE;, Martinez J;Lewi. Thats at least 10 times more than people eat on average, even in cultures that consume a lot of soy. There have been dozens of randomized controlled trials and meta-analyses showing that consuming soy or soy phytoestrogens does not have a clinically relevant impact on testosterone levels, says Nagra. Today over half of the worlds soy is grown in the United States. Effect on Male Sex Hormones Because soy contains phytoestrogens, men may worry about including it in their diet. BJU international,113(5b), E119-E130, https://www.menshealth.com/nutrition/a19539170/soys-negative-effects/, https://www.sciencedirect.com/science/article/pii/0955286396000939, http://cebp.aacrjournals.org/content/16/4/829?ijkey=4c97212772ba82aaaf19f67890d4e7b88d76ccfa&keytype2=tf_ipsecsha, https://www.goldjournal.net/article/S0090-4295(07)02445-4/abstract, 5 ways to increase your testosterone before you need TRT , Moving Goal Posts- Testosterone Reference Ranges, Low Testosterone Increases Risk of Alzheimers, Treatment of Low Testosterone from grown Leydig Cells. Iodine is crucial to the body as it helps it to produce a hormone that helps with the metabolic processes in the body. These tend to have more unnecessary ingredients like sugar and salt, and if consumed in large amounts can lead to negative health effects like cardiovascular disease. Soy is not bad for the gut health of humans. A meta-analysis of 30 observational studies found that soy consumption is associated with a decreased likelihood of developing prostate cancer (8). The puny estrogen mimics simply arent strong enough to meaningfully affect your hormones as long as youre eating them in normal amountswhich can include multiple servings each day, he explains. More answers below Biglee Murali Yes. Its important to note that taking supplements such as isolated soy protein powders and pills for an extended period of time is not recommended and may cause health problems that are not found if eating large amounts of soy foods. For example, some studies show that soy protein isolate can deliver similar muscle mass gains to other proteins like casein when taken immediately after a workout [14]. However, elevated levels of estrogen stunts muscle development, lowers testosterone, increases cortisol levels, causes gynecomastia, decreases libido, and even reduces sperm production. Soybeans also include omega 6, omega 3, and polyunsaturated fats, which help lower cholesterol, all necessary for a healthy heart [12]. Healthy Focus is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to healthyfocus.org. For more information about the relationship between Hone and the medical practices click here. Toss in some fears that environmental estrogens contributed to mens declining sperm count and soy was officially protein non grata. Not only is soy hormone-friendly, but it also provides a good source of heart-healthy unsaturated fat and fiber, as well as iron, calcium, zinc, and B vitamins, research points out (6). It's no different than V's and curves. However, soy has a bad reputation among men as many think soy foods can drastically reduce testosterone levels, make their appearance feminine, lead to poor libido, and hinder muscle growth. 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