Vitamin C and zinc supplements should not be consumed above the upper recommended limit unless recommended by a healthcare provider. The daily upper limit for vitamin C in all adults is 2,000 ...

Despite the popular use of vitamin C and zinc to fight off or lessen the severity of viral colds and flu, the new study, published Friday in JAMA Network Open, found the two supplements were of no ...

Patients reached a 50% reduction in symptoms after 6.7 days with usual care, 5.5 days when treated with Vitamin C, 5.9 days with zinc and 5.5 days for the combo treatment.

Vitamin C: Adults need between 75 and 90 milligrams (mg) of vitamin C daily. Taking more than 2,000 mg a day may cause side effects. Zinc : Adults need between 8 and 11 mg of zinc daily.

Despite the popular use of vitamin C and zinc to fight off or lessen the severity of viral colds and flu, the new study, published Friday in JAMA Network Open, found the two supplements were of no ...

Despite the popular use of vitamin C and zinc to fight off or lessen the severity of viral colds and flu, the new study, published Friday in JAMA Network Open, found the two supplements were of no ...