Q: Hello,i'm 5'9 150 pounds,i only may be one meal a day,and i'm full..I'd love to gain weight maybe 20,25,30,even 40......Please help

A: Well, you're going to have to stuff food down your throat if you want to gain weight. It's not going to happen any other way. The only thing I can promise you is that you WILL get used to it eventually, but it might take up to a month. But that's the only way. Fill out http://www.mikesfitness.com/content/fitnessguide specifying 'Build Muscle' as your goal to see a sample recommended bulking diet. You don't need to follow it exactly, of course, and you can combine multiple meals together, but on the whole it should give you a good idea of how you need to eat to put on weight.