Trying to GAIN weight (Help with nutrition plan)?

[Andrew]

I'm very new with having a nutrition/workout diet, i weigh 112 lb so that's pretty much underweight :[
But i'm going to use P90X and i'm willing to work very hard for a very fit body. All i need is tips on a nutrition diet, no added supplements. Thank you!

[Dave]

The only real way to gain weight is to eat more calories. Look over the P90X Nutrition Guide Made Easy post: http://bit.ly/XrUfS. You'll want to make sure you get at least as many calories as the spreadsheet recommends. You may want to consider a few more. Keep in mind that these need to be good clean foods. You can expect to gain weight if you just start horking down McDonald's, but it won't be the kind of weight you want. Hope this helps. Feel free to ask any follow ups.