Vitamin C doesn't actually do much to prevent or cure colds. no firm medical consensus doesn't actually do much to prevent or cure colds. "Vitamin C for the Common Cold" "Vitamin C for the Common Cold" vitamin C taking vitamin C WebMD WebMD vitamin C WebMD WebMD common cold 2007 study negligible effects on the common cold research shows vitamin C According to WebMD taking vitamin C vitamin C taking vitamin C common cold immunity vitamin C does nearly nothing for beating sickness WebMD negligible effects on the common cold taking vitamin C vitamin C doesn't actually do much to prevent or cure colds. common cold WebMD negligible effects on the common cold untrue negligible effects on the common cold vitamin C (WebMd) taking vitamin C "Vitamin C for the Common Cold" uncertain (WebMd) little to no benefit 200 milligrams vitamin C WebMD WebMD According to WebMD