Vitamin C is an essential nutrient required for a number of functions in humans. Unlike most animals, humans do not have the ability to synthesise vitamin C endogenously and so must consume their vitamin C in the diet. The requirement for vitamin C increases during times of stress, and in the case of animals their endogenous synthesis goes up concomitantly. Winter is a highly stressful time due to cold weather and harsh conditions, and there is an increased requirement for vitamin C during this time in humans. One function for vitamin C is to maintain collagen synthesis and failure to maintain an adequate dietary intake can cause skin dryness and cracking, something that can become apparent in the winter. Vitamin C is also required for the immune system, and this too can contribute to the increased requirement during winter months. It is always best to try to obtain vitamin C from fruit and vegetables, although supplements can be used sparingly where access to food sources is limited.
Eat Well, Stay healthy, Protect Yourself
RdB
