Searching online for "beets testosterone" there are sources that state that beets boost testosterone levels. e.g.
The vitamin and antioxidant content of beetroot is high. It is also rich in dietary nitrates, which boost testosterone levels.
Searching online for "beets gynecomastia", there are sources that state that beets increase estrogen levels (hence men should avoid beets):
Beetroots: Beetroots contain high estrogen levels, which could cause your testosterone levels to decrease. Try to avoid this food to balance your hormones.
Also from an article that states it is written by a doctor (but without references):
The top foods that cause man breasts are soy products, beetroot, ....
If beets cause gynecomastia, that would mean that regardless of what they do to testosterone levels, they should increase estrogen abnormally high.
What is the source of this contradiction? What do reputable medical sources report on this?