Essential Nutrients Supporting Immune Function

How vitamins, minerals, and proteins support immune defense and why nutritional adequacy is critical for immunity

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Vitamin C
Supports phagocyte and lymphocyte function
Enhances white blood cell production
Protects immune cells from oxidative damage
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Vitamin D
Regulates immune responses
Prevents excessive inflammation
Enhances pathogen-fighting effects
Zinc
Critical for immune cell development
Enables cell-to-cell communication
Supports T-cell and antibody production
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Protein
Provides amino acids to build antibodies
Supports rapid immune cell multiplication
Essential for tissue repair and recovery
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Vitamin A
Maintains mucous membrane integrity
Strengthens first-line defense barriers
Supports respiratory and gut immunity
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Selenium
Supports antioxidant enzymes
Protects immune cells during infection
Reduces oxidative stress in immunity
Essential Nutrients
Immune System Functions