Hi lybrate-user to gain weight and balance your diabetes you need to combine a balanced eating pattern with regular physical activity. You should be eating at least 6 small meals a day, rather than sticking to 3 square meals. You could divide it as 3 main meals and 3 snacks. You need to be eating every 2-3 hours. Space out snacks during the day so you don't spoil your appetite. Bread, cereal, rice, whole wheat, dalia and pasta: biscuits, and corn-bread are good sources of carbohydrates. Fruits: dried fruits, fruit nectars, and large quantities of fresh fruits vegetables: include, potatoes, peas, corn in your diet. Meat, poultry, fish, dry beans, eggs, and nuts: beef, pork, lamb, poultry, salmon, omelets, nuts, peanut butter, kidney beans, chickpeas will help you gain weight. Include dairy products like milk, yogurt, and cheese: milk, fruited yogurts, hard cheeses, ice cream, puddings, custards, milkshakes. -nuts and seeds make a healthy option for snacks. -roasted channas and peanuts are good -peanut butter on the sandwiches are a great mid-meal choice. -you must know that cereals actually contain some healthy calories. Stay hydrated: drinking plenty of water and other fluids like juices, milk, soups etc, will work in your favour. Do not drink water before a meal and in between the meal as it may make you lose your appetite, thus calorie intake suffers. Sleep: at least 8 hours of sound sleep is a must. Since your body is actually building up muscles, while you rest. Weight gainers have long term side effects.