Hi im 19 now.Ok so i started dieting about 6 months ago and it was, in hindsight, a very bad diet. I was basically starving myself on about 1000 calories of tuna, sweet potatoes (i forgot the rest), and, while i thought i was eating healthy, i wasn't, it was probably an anti-testosterone diet (no fat at all). I went from about 180 to 155. My question is, since i started when I was 18, into 19, could this affect my testosterone levels drastically, and as a result, my facial structure and or my pubertal growth in any drastic way? Im really worried that my jaw and other aspects weren't able to grow, and that this is irreversible. Could diet affect facial bone structure? If so, how can i get back on track to high testosterone?