The food pyramid was created to show people how to ... That leads to energy crashes, more hunger and weight gain over time. Not enough protein or healthy fat Protein and healthy fat help your ...

Medically reviewed by Kayla Girgen, RD Gaining weight and building lean body mass (muscle) requires thought and planning.

Certain types of food may help a person to gain weight quickly and safely. These include foods rich in whole carbohydrates, healthy fats, and protein. A doctor may recommend that people with a low ...