Details: The human body cannot make vitamin C on its own, so it must be consumed from the diet. All kinds of stressful emotions and tension will cause the body to increase the excretion of vitamin C, and the required intake will also increase. If your daily diet is inadequate, or your body has a high demand for vitamin C, supplemental foods can help maintain good health.  Vitamin C helps white blood cells and antibodies to function and is very important for the immune system. The process of making collagen also requires vitamin C. Collagen is commonly found in connective tissues such as cartilage and tendons, and is an important protein in the structure of the body, while maintaining vascular tissue. Because vitamin C affects collagen production, it is very important for wound recovery. Studies have shown that citrus flavonoids can increase the elasticity of blood vessel walls, thereby improving blood vessel function. Contains bioflavonoids that promote the abs