Overnutrition (also known as hyperalimentation) is a form of malnutrition in which the intake of nutrients is oversupplied. The amount of nutrients exceeds the amount required for normal growth, development, and metabolism.

Overnutrition can lead to:

• Obesity, a disorder which occurs by eating more calories than one burns, as well as:
• Oversupplying a specific nutrient, such as dietary minerals or vitamin poisoning.

For mineral excess, see:

• Iron poisoning, and
• Low sodium diet (a response to excess sodium).

Overnutrition may also refer to greater food consumption than appropriate,^[1] as well as other feeding procedures such as parenteral nutrition.