sometimes because you can be loseing fat and gaining muscle and muscle weighs 3 times more than fat.
No that is impossible. You cannot gain muscle mass without ever gaining weight.
Answer: Your frame size will become larger so you will gain weight, but not from muscle mass. You can gain muscle mass from exercise.
Cause you get stronger and thatputs on weight
A weight gainer wants to gain fat, a mass gainer want sto gain muscle. Normally a weight gainer has a fetish for fat.
If you eat too much you can gain weight from just about anyhing.
If you gain weight quickly you will have fat problems. And if you lose weight too quickly you will suffer anorexia before you have a chance to gain the average weight. And that is the truth.
Heavy Weight, Lots of Sets, and Low Reps.
It may cause a gain in lean muscle mass
Yes, in fact, this is basically the main thing that helps you gain muscle mass.
No we don't. You gain weight by not exercising and eating too much.
Too many and you can gain weight. Too few and you can lose weight.
If you gain muscle while exercising, you can gain weight, otherwise it is pretty hard to, unless you are eating too much fatty foods or too many calories.