Many foods are high in calories, but fat contains the most calories per gram. Some high calorie options, such as avocado, nuts, and seeds, are also dense in nutrients. There are many reasons ...

Choosing nutritious, high-calorie foods can help with healthy weight gain while minimizing risks. Carbohydrates are the body's main energy source. They provide four calories per gram and should ...

However, protein sources vary in their healthfulness, with lean, high-protein, low-calorie foods being healthier options than sources with higher amounts of saturated fat, sodium or a combination ...