The statement "there's evidence that a vegan diet increases testosterone, by providing more of the precursors" could use one, or better, two, supporting citatio

The statement "there's evidence that a vegan diet increases testosterone, by providing more of the precursors" could use one, or better, two, supporting citations: one, to the evidence that a vegan diet increases testosterone, and two, to the evidence that consumption of precursors is sufficient to cause increases of the desired substance (and particularly in the case of testosterone). I'm aware of at least some dispute about the effectiveness of increasing consumption of precursors. I don't have any emotional attachment to eating meat, and have eaten raw vegan and vegetarian diets before (and found most vegetarian dishes to be tastier than meat-based ones). One of the reasons I don't go in for any special diets anymore is that the health assertions in support of them often end up falling short of supporting evidence.