Strengthens the Immune System Vitamin C is known for its immune system-strengthening action, being especially recommended in the cold season, for preventing flu, colds, and other disorders of the respiratory system. Within its benefits, Vitamin C stands out in its important role in the normal healing process of tissues as it is involved in the production of collagen. And also in the process of iron absorption, especially the iron present in vegetables, which can be an asset for vegetarian diets. With long scientific evidence, vitamin C-based food supplements can present a series of health claims/indications: * Contributes to the reduction of tiredness and fatigue.