The vitamin also known as ascorbic acid is Vitamin C. This essential nutrient is crucial for various bodily functions, including the maintenance of skin, blood vessels, and cartilage. Vitamin C acts as a powerful antioxidant, protecting cells from damage by free radicals, and plays a significant role in the immune system's function. Humans do not produce Vitamin C naturally, which is why it is important to obtain it from dietary sources such as fruits (especially citrus fruits), vegetables, and supplements. Its deficiency can lead to scurvy, characterized by symptoms like fatigue and gum disease.