7 healthy ways to gain weight fast

Eat a healthy balanced diet
Your meals should be balanced with the right amount of carb, protein, and fats. Choose a portion of the protein sources such as eggs, meat, fish, nuts or yogurt and serve with a serving of starchy foods like potatoes, bread, rice, sweet corn, or pasta as energy-dense carbohydrate sources. You can add few extra calories to your meals and starches by topping them with butter, cheese, olive oil, or sauce.