Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
Malnutrition refers to a condition where an individual's diet lacks essential nutrients, such as proteins, vitamins, and minerals, leading to negative health effects. It can result from inadequate intake of food or an unbalanced diet.
Related terms
Undernutrition: Undernutrition is a specific form of malnutrition characterized by insufficient calorie intake, resulting in weight loss and stunted growth.
Overnutrition: Overnutrition occurs when there is excessive intake of calories and nutrients beyond what the body needs, leading to obesity and related health problems.
Micronutrients: Micronutrients are essential vitamins and minerals required in small amounts for proper bodily functions. Examples include iron, vitamin C, and calcium.