Hello, Thanks for your query. Here is the list of Foods will help Healthy weight Gain and beat weakness • Whole wheat toast with peanut butter or almond butter spread • Pulses and legumes • Soybean and soy products • Dairy products- milk, curd, butter milk, cheese etc. • Dry fruits • Milk shakes with fruits and dry fruits • Creamy soups • Energy- protein granola bars • Salad with olive oil dressing • Desserts based on milk and dry fruits, milk puddings, steamed fruit puddings etc. • Fruits like banana, mango, Chikku are high in calories. So that can included in the diet for healthy weight gain. • Pumpkin and water melon seeds Exercise- Regular exercise will boost the metabolism and will wake up your appetite. Also start doing resistance exercise, as that will help to convert the protein to muscles not to fats. Thus helping you to gain weight in a healthy manner. You can take a physical trainers help in developing a resistance exercise program. I do hope that you have found something helpful and I will be glad to answer any further query. Take care