The goal of a weight-gain diet plan is to assist people in increasing their caloric intake in a sustainable and healthy way. Usually, it entails eating foods high in nutrients, such as those high in proteins, carbs, and healthy fats. Lean meats, seafood, poultry, dairy products, nuts, seeds, whole grains, fruits, and vegetables are examples of this type of food. To fulfill increasing calorie requirements, the strategy frequently stresses eating more frequently and in greater portions throughout the day. Including high-calorie snacks and smoothies can also help increase total caloric consumption. To ensure safe and successful outcomes, a weight-gain diet plan can be customized to each person's needs and goals by speaking with a nutritionist or dietitian.