Have meals with the right balance
of proteins, carbohydrates, and the right kinds of fat (such as unsaturated and monounsaturated fats, olive oil, canola oil, pistachios, almonds and walnuts). Heinemann suggests the following ratio: 60%-70% carbohydrates, 10%-15% protein, and a small amount of fat.
Eat foods higher in calories, vitamins, and minerals, as opposed to higher in fat or sugar.
Pack more nutritious calories in each serving.