Vitamin C, if consumed regularly, has an anti-fatigue effect which makes it a major ally in the fight against winter energy loss, infections, colds and flu. The recommended daily intake of vitamin C is 110 mg in France against 90 mg for a man and 75 mg for a woman in Canada. Vitamin C is found mainly in fruits and vegetables, especially in citrus (orange, grapefruit), Red fruits (blackcurrant) and sun vegetables (tomato, pepper). It is better to consume them raw or steamed in order to keep the vitamin C content as much as possible. be deficient. Vitamin C can also be consumed as a dietary supplement as long as you do not exceed the recommendations because consuming too much can have side effects such as nausea, vomiting or diarrhea.