So, I've been trying to gain weight for years.. But I apparently wasn't doing it properly. I also have an extremely fast metabolism, no matter what I eat, when I eat and the quantity, I would not gain a kilo. (I'm Australian, I don't know pounds) But, my issue is, I eat quantity over quality. I am now 21 and weigh 55kgs.. So I'm am TINY. I work out everyday, muscular workouts only, I do not job or anything because I burn calories quick enough as is. Haha. I have actually just recently bought a Mass Gainer, high in protein, calories and carbs. Also a bit of sodium for that absorption. ;) After reading think, I am undertaking a new diet. Going to keep a food diary and a complex game plan. Really happy I stumbled across this, thank you very much. Bookmarked for on the fly reference! I also didn't know about bigger weights, less reps = bigger gains!!!