The human body finds it almost impossible to store vitamin C, meaning that it must be introduced permanently via foodstuffs. Vitamin C can be acquired from citrus fruits, potatoes, peppers and many other vegetables and fruits. It is often contained in foodstuffs as an additive in the form of ascorbic acid (with the number E300). Vitamin C is very sensitive to water, oxygen, light and heat and thus must be treated with great care. Vitamin C is involved in the healing of wounds and the formation of various hormones and neurotransmitters. It is a radical scavenger and helps to flush out poisonous substances from the body. Moreover, it helps with the formation of defense cells, which leads to an increase in the strength of the immune system. A lack of vitamin C results in great tiredness, exhaustion, gum disease and other similar problems.