My good friend has been a strict vegan for 3 or 4 years, and a vegetarian since she was 14 (over a decade). She was on birth control most of that time, went off it a year ago, and hasn't had her period once since. She also is generally a mess; very depressed and anxious, history of eating disorder and still with lots of food issues though a healthy weight/caloric intake, zero sex drive, no energy, skin problems, etc.
She has seen her dr, her gyn, and now an endocrinologist. They tell her that her 'estrogen is low' and that she should go on the Pill again to protect her bones. Zero help. She has all the symptoms of estrogen dominance.
Of course, I think her diet is the entire problem. She is currently getting her MA in nutrition, and disagrees- though she does come to me for advice about this, and thinks I'm pretty smart. :) She's not going to start eating animal products anytime soon, since she's a religious vegan - she agrees a vegan diet is not ideal, but doesn't think it's damaging, either.
What (vegan) diet changes, supplements, and hacks would you guys advise? I've already gotten her sleeping in total darkness, taking D3 (even though it isn't vegan!), and now starting to supplement with coconut oil in the hopes saturated fat will help...