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Table 2 Nutrient’s supplementation suggested in support of respiratory infections

From: COVID-19: Is there a role for immunonutrition in obese patient?

Nutrient

Recommended supplementation suggested in support of respiratory infections

Omega 3 fatty acids

2–4 g/day [68]

Vitamin D

20,000–50,000 IU [154]

Vitamin E

135 mg/day [114]

Zinc

30–50 mg/day [98]

Selenium

25–100 μg/day [130]

Arginine and glutamine

25–35 g/day [142, 146]

Vitamin C

1–2 g/day [98]

Vitamin A

900–700 µg/day [91]

Iron

8–18 mg/day [138]