Choose fruits and veggies rich in vitamin C: It is easier for viruses to thrive under cold conditions. That is why fruits and veggies rich in vitamin C are needed, not just to reduce the severity of cold but also to boost the body's immune system to keep the body safe from harmful pathogens. One of the major problems in winter is catching a cold. People who consumed more vitamin C rich food are less susceptible to catch a cold more than people don’t consume any. Vitamin C has been an effective method of relieving cold and preventing cold from developing into severe conditions like pneumonia or lung infections. Generally, vitamin C won’t harm you if you get it by consuming fruits and veggies. But if you wish to follow an alternate route, taking a vitamin C supplement is not a bad idea once it is taken in the recommended quantity or dosage.