I've read about soy raising estrogen levels. Would eating soy hinder muscle gain in any measurable way. I think I might have a mild lactose intolerance, so was going to replacing my regualr milk with soy milk.
I've read about soy raising estrogen levels. Would eating soy hinder muscle gain in any measurable way. I think I might have a mild lactose intolerance, so was going to replacing my regualr milk with soy milk.
I have worked to formulate diets for agricultural animals on a daily basis. In the U.S. almost every animal is fed a corn/soybean diet. Why is this important? Animals are fed for maximum muscle growth. Estrogen does not significantly hinder muscle development. In fact, most, if not all, male animals are castrated in the U.S. Malificent has the 100% right idea. Protein is the major factor here; not the trace amounts of estrogen (which is in a poor bioavailable form anyway.) More precisely it is the amino acids, but for simplicities sake just leave it at protein. Just be sure to eat (or drink in this case) a variety of protein rich foods to nail all the essential amino acids your body needs. No one source is a complete protein. Therefore, to answer your question: No, drinking soymilk will not hinder muscle growth in any measurable way. Not eating adequate protein will.
If you are still concerned consider this. Peas contain more estrogen per serving than soybeans.