Nutrition-related illnesses describe various health problems that develop because of an imbalance in nutrient consumption, either from too little or too much intake. These problems may influence general wellness, physical development, and normal body processes. Several frequent nutrition-related disorders include:

Malnourishment: A broad expression that includes both inadequate nourishment and excessive nourishment.

• Insufficient nutrition: A lack of adequate calories, proteins, and other vital nutrients in the diet. This condition may result in slowed physical development, reduced immune defense, and loss of muscle tissue.
• Excess nutrition: Too great an intake of calories, which may contribute to overweight and obesity.