Medically reviewed by Kayla Girgen, RD Gaining weight and building lean body mass (muscle) requires thought and planning. People who strive to gain healthy weight include athletes, bodybuilders, ...

Understanding the role these foods play in weight gain can help you make more informed choices, whether you’re trying to maintain a healthy weight or simply seeking a better balance in your diet. 1.

Depending on age, different foods can help your baby gain weight. Babies under 6 months should be given breastmilk or formula, while older children can have foods such as oatmeal, avocado, and ...