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1. Core Immune-Boosting Combinations

Protein + Zinc + Vitamin A

• Protein (eggs, fish): Provides raw materials for antibody production

• Zinc (oysters, nuts): Supports thymus function

• Vitamin A (liver, carrots): Strengthens mucosal barriers
  📊 Clinical studies show this trio reduces respiratory infection risk by >30%

Vitamin C + Vitamin E (Antioxidant Pair)

• Vitamin C (citrus fruits, kiwi): Enhances neutrophil activity

• Vitamin E (nuts, spinach): Protects immune cell membranes
  📊 Combined supplementation increases NK cell activity by 25%

2. Anti-Inflammatory & Immune-Regulating Combinations

Vitamin D + Omega-3 Fatty Acids

• Vitamin D (sunlight, cod liver oil): Balances Th1/Th2 immune responses

• Omega-3s (fatty fish): Reduce pro-inflammatory cytokines (e.g., IL-6)
  📊 Shown to significantly lower CRP levels in chronic inflammation

Selenium + Vitamin B6

• Selenium (Brazil nuts): Boosts glutathione peroxidase activity

• Vitamin B6 (bananas, poultry): Supports lymphocyte differentiation

3. Gut–Immune Support

Dietary Fiber + Probiotics

• Soluble fiber (oats, apples): Promotes short-chain fatty acid production

• Probiotics (yogurt): Help regulate gut microbiota balance
  📊 Together, they increase intestinal sIgA secretion by 50%

4. Special Population Recommendations

⚠️ Note: Supplementation should be personalised. Excessive intake (e.g., zinc >40 mg/day) may cause side effects. Always consult a clinical nutritionist for tailored advice.