I am assuming that she has been training and has plateaued ... so what she needs is to change it up.. shock the system, change her diet, change the training .. For example, for the next three to five days take all starchy carbs out of her diet, so her diet would look something like lean meats and fish and non fat dairy products. No sugar either and no fatty meats like bacon sausage etc.. .. then on alternating days add in fibrous veges, salads, with the lean meats... keep alternating days (some cheating is ok and the diet should still work) at the same time have her change cardio sessions with something new ..the trick is to keep the body guessing. We are highly adaptable and our bodies adjust amazingly which hinders fat loss etc. Using compounds can become dangerous especially something like Thyriod where you can throw off your entire system should you take too much go off suddenly .. this is something that has the potential to end in a dirt nap.