Dietary and lifestyle factors for immune system health

Maintaining a strong immune system relies on a combination of specific nutrients, gut health, and the balance of the autonomic nervous system. Key nutrients include proteins for antibody production, Vitamin A for mucosal health, Vitamin C for antioxidant support, Vitamin D for immune regulation, and Zinc for immune cell development.

Recommended foods include salmon, eggs, natto, broccoli, and kiwi fruit. Beneficial beverages include milk, yogurt, soy milk, vegetable juice, and green tea. Conversely, excessive consumption of sugar, saturated fats, and refined carbohydrates may negatively impact immune function by promoting inflammation.

Immune health is also closely linked to the autonomic nervous system and the gut, where approximately 70% of immune cells reside. A balance between the sympathetic and parasympathetic nervous systems is essential; an excess of parasympathetic activity can lead to increased sensitivity to antigens and allergies, while an excess of sympathetic activity may lead to the elimination of beneficial bacteria.