Vitamin C Supplements and Cold Prevention: Does it Work? Feeding Pre-K Aged (3-5 years old)· Feeding Toddler (1 to 3 years old)· How To Feed:· Pregnancy & Lactation· Uncategorized 23 Jan So many people purchase vitamin C supplements in hopes of preventing the onset of a cold. Does it work? Is it worth the money? Find out in this 7 minute video!