Effervescent supplements have been found to lower blood pressure in both healthy adults and those with high blood pressure. It is a potent antioxidant and a cofactor for a family of biosynthetic and gene regulatory enzymes. Vitamin C contributes to immune defense by supporting various cellular functions of both the innate and adaptive immune system.

Source: -https://www.reddit.com/r/ImmunitySupplements/comments/r032v6/which_vitamin_tablet_is_good_for_weakness/