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Nutrition Basics

Micronutrient

Vitamins and minerals: small doses, major health effects.

Definition

Micronutrients are essential nutrients needed in small amounts: vitamins and minerals. They provide no energy but regulate essential biological functions.

How it works

Unlike macronutrients, micronutrients provide no calories, yet their absence causes serious deficiencies. Vitamin C prevents scurvy, iron prevents anemia, calcium maintains bone density.

Role

Regulate enzymatic reactions, strengthen immunity, protect cells.

Examples

  • Vitamin D (bones)
  • Iron (O₂ transport)
  • Magnesium (muscles)
  • Zinc (immunity)

Recommendations

Diversify your diet across all food groups to cover all micronutrient needs.

Key takeaway

Micronutrients are indispensable even in trace amounts — their deficiency profoundly impacts health.

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