HI, first for weight gaining nutritional management has to be done. here is list of some weight gainer diets... Baked acorn squash Peanut butter Whole eggs Granola Butter Tuna Corn bread Cheese Shrimps Oatmeal Salmon Baked acorn squash Peanut butter Whole eggs Granola Butter Bagels Tuna Corn bread Cheese Fruit juice Pasta Shrimps Whole wheat bread Dried fruits Oatmeal Yoghurt Healthy fats and oils Brown rice Bananas Nuts and seeds Beans Chicken breast Potatoes Soybeans Healthy fats and oils Bananas. i am giving you one diet plan that can be tried... BREAKFAST: 1.5 cups raw oatmeal 1 cup skim milk 1/2 cup dried cranberries or raisins 1 TBS flax oil (cinnamon flavored flax oil works well with oatmeal too) 750 calories, 35 g protein, 90 g carbs, 18 g fat MIDMORNING SNACK: 1 cup skim milk 1 large piece of fruit with 1 TBS natural peanut butter 1 low-fat mozzarella stick 500 calories, 30 g protein, 30 g carbs, 18 g fat LUNCH: 2 cups egg salad on 2 whole wheat pitas 1 banana 600 calories; 74 g protein, 16 g carbs, 30 g fat AFTERNOON SNACK: 1 cup low-fat vanilla yogurt 1 cup fat-free cottage cheese 1 cup blueberries 2 TBS wheat germ 1 TBS honey 600 calories, 38 g protein, 80 g carbs, 2.5 g fat DINNER: 6 oz grilled salmon 1 large sweet potato 1 cup cut green beans 1 cup skim milk 700 calories, 45 g protein, 70 g carbs, 20 g fat AFTER DINNER SNACK: Peanut butter smoothie 600 calories, 30 g protein, 35 carbs, 16 fat. Protein powder also can be tried.