Evidence-based nutrition, in plain English — every entry sourced from clinical research.

Immune Support

Immune Support

Immune readiness comes from balanced protein, micronutrients and consistent habits.

Key compounds

The evidence base for this goal focuses on several well-studied compounds.

  • Selenium — Selenium is a trace mineral the body needs only in tiny amounts, yet its influence is far-reaching. It forms the active core of selenoproteins — specialised
  • Vitamin D — The sunshine vitamin: scarce in food (oily fish lead), it works like a hormone for bone, muscle and immune health.
  • Vitamin C — Vitamin C is a water-soluble antioxidant the body cannot store for long, so a regular dietary supply matters. Beyond immune support it is essential for collagen…
  • Zinc — Zinc is a workhorse trace mineral behind immune function, skin repair and taste. As with iron, the phytates in unsoaked legumes and grains bind zinc and…

Best foods for this goal

The foods below are good practical choices.

Orange

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 47
Total Fat 0.12 g
Saturated Fat 0.02 g
Sodium 0 mg
Potassium 181 mg
Total Carbohydrate 11.75 g
Dietary Fiber 2.4 g
Total Sugars 9.35 g
Protein 0.94 g
Vitamin C, folate, thiamine, hesperidin
Glycemic index: 43
Source: USDA FoodData Central (FDC 169097)

Red Bell Pepper

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 31.3
Total Fat 0.13 g
Saturated Fat 0 g
Sodium 0 mg
Potassium 213 mg
Total Carbohydrate 6.65 g
Dietary Fiber 1.16 g
Total Sugars 4.2 g
Protein 0.9 g
Vitamin C, vitamin A, vitamin B6, carotenoids
Glycemic index: 15
Source: USDA FoodData Central (FDC 2258590)

Chicken Breast

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 165
Total Fat 3.6 g
Saturated Fat 0.7 g
Sodium 74 mg
Potassium 256 mg
Total Carbohydrate 0 g
Dietary Fiber 0 g
Total Sugars 0 g
Protein 31 g
Niacin, vitamin B6, selenium, phosphorus
Source: USDA FoodData Central (FDC 2759004)

Mussels

Nutrition Facts
Per 100 g · values per 100 g
Calories 86
Total Fat 2.24 g
Saturated Fat 0.43 g
Sodium 286 mg
Potassium 320 mg
Total Carbohydrate 3.69 g
Dietary Fiber 0 g
Total Sugars 0 g
Protein 11.9 g
Vitamin B12, iron, selenium, omega-3 (EPA & DHA)
Source: USDA FoodData Central (FDC 174216)

Sunflower Seeds

Nutrition Facts
Per 100 g · values per 100 g
Calories 609
Total Fat 48.4 g
Saturated Fat 4.46 g
Sodium 0 mg
Potassium 657 mg
Total Carbohydrate 24.5 g
Dietary Fiber 7.22 g
Total Sugars 2.62 g
Protein 18.9 g
Vitamin E, magnesium, selenium, healthy fats, fibre
Source: USDA FoodData Central (FDC 2515381); sugars/sat-fat: FDC 170562

Garlic

Nutrition Facts
Per 100 g, edible portion · values per 100 g
Calories 143
Total Fat 0.38 g
Saturated Fat 0.1 g
Sodium 17 mg
Potassium 401 mg
Total Carbohydrate 28.2 g
Dietary Fiber 2.7 g
Total Sugars 1 g
Protein 6.62 g
Manganese, vitamin B6, vitamin C, allicin
Glycemic index: 30
Source: USDA FoodData Central (FDC 1104647)

Practical takeaways

Focus on consistency, variety and the overall dietary pattern. Smaller daily choices tend to outperform occasional large changes.

Common questions

Is one compound enough? Rarely. Whole foods and dietary patterns usually outperform single-compound strategies.

How fast can diet change inflammation or blood markers? It depends on the marker, the starting diet and lifestyle factors. Expect gradual trends rather than overnight shifts.

A note on health content. This article is for general information and is not a substitute for professional medical or dietetic advice. Where we cite research, links to the original papers are provided so you can read the evidence yourself.

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