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10 Home Remedies for Colds


9
Vitamin C
Vitamin C can help boost your immune system.
Vitamin C can help boost your immune system.
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Vitamin C won't prevent a cold, but it may help once you have a cold. Although it remains a controversial idea, some research suggests that vitamin C can help boost the immune system and reduce the length and severity of symptoms. But to reap the benefits, you've got to take a lot of "C." The RDA for men and women age 15 and older is 60 mg, but studies show that you'd need to take upward of 1,000 mg to 3,000 mg to get the cold-symptom-sparing rewards of vitamin C. For the short term, experts believe that wouldn't be harmful, but taking too much vitamin C for too long can cause severe diarrhea. Before loading up on vitamin C, check with your doctor.