That's impossible, if anything would make you gain that amount of muscle it would be steroids. I weigh 240 lbs, 15 % body fat, and I never gained more than 1 pound of muscle in a week (a good week) WITHOUT roids. DO NOT take roids
maybe
Yes, because as the size of your muscle increases, the mass of your muscle increases. And when the mass of your muscle increases, so does the weight.
yes, just remember that if you lose fat, but gain muscle, you can actually gain weight because muscle weighs more than fat. But people that have more muscle also have faster metabolisms, which allows you to burn off more calories, therefore decreasing the amount of fat that the body stores, allowing you to shed those unwanted pounds of fat.
Well if you lift weights you gain muscle right, well muscle has weight so if you gain a pound of muscle your not getting heavier your just building muscle. Bodybuilders on average weigh 200 to 280 pounds but they don't carry that extra weight in fat but they carry it in muscle. But since fat burns 60 calories a day muscle burns close to 110 calories a day so ultimately that muscle will burn all that fat you want to burn.But if you weigh 500 pounds your not extremely muscular you just fat.
No, you won't look very much different, especially if the last 4 pounds are muscle. To gain muscle, try doing strength workouts. DO NOT do cardiovascular workouts (like running) if you are trying to gain weight.
You don't gain weight in order to get muscle. You overload your muscles with heavy weight training, and then eat more to fuel the muscle growth.
When you order a steak, is it weightless? No. Of course your weight goes up when you gain muscle.
Answer: Your frame size will become larger so you will gain weight, but not from muscle mass. You can gain muscle mass from exercise.
weight gain powder gives you more muscle.
No that is impossible. You cannot gain muscle mass without ever gaining weight.
Exercise in a way where you don't lose weight but gain muscle weight.
20 pounds in two months is a lot of weight to gain in that short of a time frame, i myself am 17 and the only thing that i have done do gain weight that quickly is to take body building supplements such as multiple brands or forms of tren or tren extreme, or creatine, and steroids are not out of the question with gains that drastic. either hes been eating behind your back or hes taking something to enhance his ability to gain muscle so quickly.