Reference 1: A Review of Micronutrients and the Immune System–Working in Harmony to Reduce the Risk of Infection

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Reference 2: Immune Function and Micronutrient Requirements Change over the Life Course

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Reference 3:Vitamin-Mediated Regulation of Intestinal Immunity

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Reference 4: The Role of Minerals in the Optimal Functioning of the Immune System

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Reference 5: Immune-boosting role of vitamins D, C, E, zinc, selenium and omega-3 fatty acids Could they help against COVID-19

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Reference 6: Hesperidin and SARS-CoV-2 New Light on the Healthy Function of Citrus Fruits

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Reference 7: Strengthening the Immune System and Reducing Inflammation and Oxidative Stress through Diet and Nutrition Considerations during the COVID-19 Crisis

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Reference 8: Vitamin D and the Immune System

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Reference 9: Vitamin C and Immune Function

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