Hi, I was quite thin too. I went from 130 pounds to 110 pounds. Now I am 127 pounds. I have managed to gain back almost everything I lost. I stopped taking Florinef and the weight gain started gradually. I know thats so weird as its usually the opposite, you gain weight on florinef! hehehe I also go to a holistic PCP. All the foods you are eating he has told me NOT to eat - milk, pork, eggs, they are very allergenic. He basically recommends all meat BUT pork!! No dairy, BUT butter (one tablespoon a day) is OK for the buteric acid. This is what the diet basically is: breakfast : gluten free bread with butter or gluten free minimal processed oats made with water/ lunch: piece of meat as big as your palm (free range organic chicken, beef or fish) and vegatables (there are some to avoid like corn) dinner: same as lunch there are certain snacks that you can have. if you need more info let me know.