Vitamin C (ascorbic acid) is a water-soluble vitamin that the body cannot produce on its own. It participates in the formation of collagen, plays a role in the functioning of the immune and nervous systems, in energy metabolism, psychological functioning, reducing fatigue and exhaustion, and iron absorption. Vitamin C is the most important antioxidant in extracellular fluid. Antioxidants are substances that prevent or slow down the damage caused to cells by free radicals – these are unstable molecules that are produced to a small extent by our body, and their production is increased due to various harmful factors (stress, alcohol, smoking, aging, ionizing radiation, polluted air,…)