text: i have tried protein shakes and kreatin but it doesnt seem to what else can do? docotor says no working out till gain weight protein needs training to function well on the muscle, and creation works as a power enhancer that gives u higher performance in gym ...  i tried both, and i gained 10 kilos after using them in 3 month. you have to watch out for the recommandations and know what to use according to your condition.  but yet for weight gain i suggest whey proteins, and creatin wait untill u need to push more in gym start taking it, and for more effective result there is some kind of proteins that work in making the muscle keep its new size and not lose it if u had to stop gym for a while (maybe such stuff might be added with the creatin you are using)  one last note: dont use liquid creatin its not effective at all, and its having defects.