[bdp]

Instead of 'weight,' let's talk about fat and muscle. Do you want more fat or more muscle? I assume you want more fat.

To gain fat, raise your insulin and/or eat more calories.

To raise insulin, eat lots of white starch: potato, rice, pasta, bread, etc. Combine with sugar for maximum results (and don't combine with fat or fiber, which will slow the insulin response). I do not recommend this method.

The calorie method is the healthier way to go: eat more avocado and raw nuts and seeds. A medium avocado and 1/4 cup of nuts or seeds will be a good 500 calories.