Eat lots of high-fat foods and don't exercise. It's your metabolism. Look at your family photo album and see who is thin in the pictures. It's the gene pool! Eat well, but don't eat bad fats and certainly exercising (going jogging, biking, fast walking) is good for the body and will put muscle on you and get your heart rate up. In time you'll get to a weight suitable for you. I know I use to be under-weight when I was young and now I'm always fighting the battle of the bulge now!
For beginners
1. Eat enough calories more than 2800 per day
2. Start working out lift weights run get your body in shape
3. Keep doing that I bet u that you will gain 1-3 pounds per week....
Consume massive amounts of calories with as little physical exercise as possible. Also late night eating.. as you are sleeping you burn less calories and they simply sit there)
The fastest way to gain weight would be to eat a high calorie diet. You could also eat a lot of foods with high carb amounts and restrict exercise amounts.
If your too skinny, then just eat every thing that you can with Peanut Butter!! it really works!
Just gain weight.
The fastest way to gain muscle and lose weight, would to be running daily, aproximately 3 miles, and doing a simple ab workout, such as 20 pushups, 50 situps, and weight lifting for about 30 minutes everyday.
The fastest and easiest way to gain weight is to eat more food and excercise less. Foods high in protein and fat could be eaten in higher qualtities than is eaten now.
Surgery or fasting is the fastest way. Of course getting slim fast is the best way to gain fat even faster. If you don't change your eating habits and lifestyle, you will continue to gain weight following your quick fix. Perhaps, you could go back and get different ancestors with slim genes.
Eat healthy(avoid fat and sugar) and work out/exercise as much as possible
If you are trying to acheive weight gain , go and see a weight lifting and health store they will have what you need . do not try eating high sugar and high fat foods to gain your liver will not be happy and you can cause damage .
To eat like a pig, or not exercise is an unhealthy way to gain weight.
You need to eat something, preferably sweet. That is the best way to survive! You can think of weight gain later on.
Same way as you would normally gain weight. Not everyone will gain fat in the same proportion. Some people, when fatter, gain a large paunch, but others have wider hips, fatter legs, etc.
You gain muscle weight by lifting as much weight as possible with a muscle three times in a row. You keep it up until you get up to 10 times. They you take a day off. As soon as you get up to 10 times, you add more weight and go back to 6 times. You do that for every muscle in your body.
A combination of both is the fastest way to lose weight. You can't really get the results you want by doing just one or the other.
The best way would probably be working out and eating a lot of meat.You should lift weights, but instead of eating a lot of meat, get on a high calorie diet. You will gain muscle mass, and muscle weighs more than fat.