The answer depends on how active you are, and you should'nt be worrying about your weight because your only 12. unless your doctor tells you otherwise. Ask your doctor for the answer..
I cannot directly answer this because it would depend upon one pound of what type of food. For example, one pound of potatoes(which are high in carbs) are going to have a lot less carbs than one pound of peanut or pork rinds that are low carb foods. If your question references how much to consume or burn to gain or lose a pound of weight: There are 3500 calories in 1 pound.
2000
If you want to increase your weight then you must consume enough grams of protein equivalent to your weight in pounds daily. The source of protein must come from a variety of meals, healthy meals are recommended. If you want to stay fit then consume atleast 110 grams of protein daily. Working out on a daily basis is recommended also.
1.29 grams of protein per pound of body weight. So if you weigh 100Lbs, take in 129 grams of protein per day. That only equals out to 21 grams per meal. Very reasonable
30 grams.
On Earth, 453.6 grams of mass weigh one pound.
The number of grams in a pound is fixed. It does not matter what the material is: 1 pound = 454 grams.
One pound is is about 4.5 times heavier than 100 grams.
About 453.6 grams per pound.
That will vary significantly depending on what the "pound" of food is.
Meat has no carbs. Calories and fat, yes, but no carbs. YAY, something I can eat!
453.6 grams is equal to one pound.