For example, one study in 35 men found that drinking soy protein isolate for 54 days resulted in decreased testosterone levels (3). Soy foods are also high in phytoestrogens, which are plant-based substances that mimic the effects of estrogen in your body by altering hormone levels and potentially reducing testosterone ( 4 ).
Soy and soy-based products Some research shows that regularly eating soy products like edamame, tofu, soy milk, and miso may cause a drop in testosterone levels. For example, one study in 35 men found that drinking soy protein isolate for 54 days resulted in decreased testosterone levels (3).
Does soy actually lower testosterone?
U. S.-based, unfermented, and overly processed soy will have a direct impact on your levels of testosterone and DHT, effectively lowering both. This is especially true for those guys who are looking to build muscle. Stay far away from soy-based protein. Stick with whey, egg, or pumpkin seed protein powder.
Does soy negatively affect your testosterone levels?
Studies are ongoing regarding the effect of soy on health and fertility. Soy does not currently appear to lower testosterone levels or affect sperm health, but if you’re concerned about your fertility, you may consider limiting your consumption of soy. Specific nutrients in foods and supplements may help increase your testosterone levels.
Is it true soy diet can increase estrogen levels?
Soy protein-containing foods, like tofu, textured vegetable protein and edamame, do not significantly increase estrogen levels in either men or women. Soy may have mild, beneficial anti-estrogenic or estrogenic effects, depending on your time of life.
While we were writing we ran into the question “Does soy really affect hormones?”.
One answer is, the study concluded that this food, regardless of isoflavone content, decreased testosterone and DHT with minor effects on other hormones, providing evidence for some effects of soy protein on hormones.
What foods reduce testosterone levels?
, and soy products. Soy foods, such as tofu, edamame, and soy protein isolates, contain phytoestrogens., and dairy products. Many people looking to raise their testosterone levels might choose to avoid dairy products. A few extra items to look into are: mint, licorice root, certain fats, alcohol, or bread, pastries, and desserts.