Food & nutrition security
Hidden Hunger
Definition
Hidden hunger is a chronic lack of essential micronutrients — vitamins and minerals such as iron, iodine, vitamin A, and zinc — in the diet, occurring even where food supply meets energy needs. Because people affected are not hungry in the classical sense, the condition often goes unnoticed while impairing immunity, growth, cognition, and productivity; FAO estimates the global toll exceeds two billion people.
References
definition and scale
Overview
What it means
Hidden hunger explains why "enough food" is not "good nutrition": monotonous, calorie-dense diets lacking fruit, vegetables, and animal-source foods deliver energy without micronutrients. Subclinical deficiency — no goitre, no blindness, but weakened immunity and stunted cognition — is the larger, invisible share of the problem. Main remedies are dietary diversification, fortification, and supplementation.
How it is used
The concept guides nutrition policy, school-feeding and fortification programmes, and SDG 2's framing of ending "all forms of malnutrition".
Why it matters
It reframes food security from quantity to quality — a prerequisite for human-capital development.