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Natural Supplements That Will Boost Your Immune System

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These supplements are effective for boosting the immune system and have antiviral effects. They can be used for prevention and also to help recover if you get sick.

Green tea 4 cups daily or EGCG 225 mg daily

In addition to reducing inflammation, green tea enhances the immune system and targets one of the processes involved in COVID-19 replication.


Vitamin D 5000 IU daily

Vitamin D enhances immune system function, reduces viral growth, and can reduce upper respiratory infections.


Vitamin A 10,000 IU daily (do not take large doses if pregnant!)

Vitamin A is anti-inflammatory, enhances immune function, and supports the lining of the respiratory tract.


Vitamin C 1000 to 3000 mg daily

Vitamin C contributes to immune defense by supporting various cellular functions of the immune system. Vitamin C has been used in hospital ICUs to treat COVID-19 infection.

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