Sona C500 Chewable Tablets (30). Vitamin C is a powerful antioxidant which helps maintain a healthy immune system. It has a key role to play in the synthesis of collagen and is important for the structure and maintenance of blood vessels, connective tissue and cartilage. Vitamin C converts iron sourced from non-meat sources (non-haem) into a more soluble form, making it easier to absorb, therefore having an important role in iron absorption. Sona C1000 complex also includes Acerola, Rutin, bioflavanoid and hesperidin antioxidants, which help in inhibiting harmful oxidative reactions that can cause damage to cells in the body. Vitamin C also has a key role in energy metabolism thus aiding in reduction of tiredness and fatigue.. Sona C500 Chewable provides 500mg of Vitamin C in each delicious, orange flavour, sugar free tablet. Vitamin C is important for a wide number of functions in the body such as normal immune system health, collagen formation, energy metabolism, nervous system health, psychological functions, as an anti-oxidant, in the absorption of the iron and the reduction of tiredness and fatigue.