I'm not sure how "hard" someone can train just eating "only vegetables and salads and shit,,, maybe a little chicken here and there. Thats it,,no fat"
OK, her training might feel hard and look hard, but with a diet like that, she's just shooting herself in the foot, because she's not giving her body sufficient nutrients to train with enough intensity to change her body.
And eating "no fat" is NO good. The body needs fat (in the form of healthy fats - essential fatty acids, particularly omega 3 and omega 6 fats) to burn fat.
Telling a woman to eat more when she wants to lose weight sounds crazy, but it's true. Most of us on this board had to learn that lesson ourselves. When I started eating more, I could train harder and heavier. This made me smaller and leaner, not bigger and bulkier. A pound of muscle takes up less space than a pound of fat. An added bonus is that having more muscle makes the body burn more calories, making it easier to stay lean.
Drugs might get the weight off for the short term, but they'll burn up the muscle as well as the fat, leaving her metabolism even lower, and increasing her chances for fat rebound. She shouldn't even consider taking something like T3 unless she wants to risk permanently screwing up her Thyroid.