Look up your basic caloric needs based on your body weight (Google 'daily caloric needs') and then add 200-500 for reasonable paced growth and up to a thousand if you're willing to gain larger amounts of fat. You will gain some amount of fat as you go regardless and it is not recommended to go beyond 18% body fat when looking to gain muscle. Anyone who claims you will not gain fat in the process is either misrepresenting how mass gain works or implying you should be taking anabolic steroids.
150 calories
Enough to keep them healthy and fit and strong for daily activity. There is no fixed amount that could be easily pointed out, every body builder differs from the other.
200 calores
No.
Calories are necessary, but too many for a day is unhealthy. Some say 2,000 calories a day is good.
On average, 2000 calories per day.
for an average adult....2000.......for a teenager around 2500..... it really depends on your lifestyle.....like if your a body builder or something you might need 500 in a day
Between 1,500 and 2,000 calories a day. Variations are based on gender, body size (height and weight), body fat, and daily level of activity.
the less, the better. Depends on how many meals you have and how many calories your body burns during the day. If you body works with the 2,000 calories a day then you should have 2,000 calories a day; not necessarily from fat. 1 gram of fat = 9 calories You might find this helpful: http://yourtotalhealth.ivillage.com/diet-fitness/how-count-calories-per-gram.html
Teenagers are supposed to have around 2000 calories and finishing the day under 900 your body registers it as starvation.
It depends on how much you weigh, and how many calories are in your body in the first place.
3,500 calories = 1 pound of body fat
Calories provide the body with energy and nutrients that are vital to survival.