Vitamin C, also called ascorbic acid, is a vitamin that dissolves in water. It is commonly found in citrus fruits and some vegetables. Vitamin C plays an important role in the repair of tissues, formation of collagen and enzymatic production of some neurotransmitters. It is also essential for the functioning of the immune system and several enzymes. The deficiency of vitamin C causes scurvy. The early symptoms of scurvy include weakness, feeling tired, and sore arms and legs. It could lead to bleeding under the skin, spongy gums, 'corkscrew' hair growth, and poor wound healing without proper treatment. Adequate doses of vitamin C should be supplemented in diet. However, large doses of vitamin C can cause gastrointestinal discomfort, headache, trouble in sleeping, and flushing of the skin. This book includes some of the vital pieces of works being conducted across the world, on various topics related to vitamin C. Those in search of information to further their knowledge on the role of