Q: What happens if u do weight training to failure and u dont overeat(ust eat normally).Does this mean weight training is useless to u this way?I cant eat more that i eat already,i eat 5 times a day nice clear foods but i cant up my kgs anymore.I dont wanna eat more.Does this mean weight training is useless to me anymore?Cant i gain more muscles this way?

A: You will still get stronger, gain muscle and lose fat, but the process will be very slow if your weight never changes. As usual, if you are a relative beginner, your progress will be faster, but in all cases no weight change means no or very slow body composition changes compared to when you gain or lose weight according to your goals.

One thing you may want to consider, if you are over 18, is if you have some extra fat you want to lose is to go on a cutting phase to slowly lose a few pounds by dropping the overall calories. After that you can increase the calories back up and slowly gain the pounds back -- after a few months you'll be back to present weight, but with more muscle and less fat than before. This will allow for faster progress than just keeping the weight constant.

The other option is to find way to eat more :) A banana or two as snacks throughout the day are pretty easy to pull off for anyone and will give you the extra calories to gain weight.