This book is an essential guide to current knowledge and analysis of vitamins. Vitamins are described in detail in medical and biotechnological processes. An analysis of vitamin sources is also provided from physiological point of view. In this book we discuss the historical point of view of the use of vitamins, medicinal plants, and the nature and advances of biopharmacy. This book reports results from experimental and clinical work. It includes data regarding Vitamin B3 in various sources including sesame, avocado, and bananas; Vitamin C in various sources including mango, strawberries, and green salat; Vitamin D in salmon, red meat, and fish oil; Vitamin K in various sources including cucumber, asparagus, and kale; Vitamin E in nuts, cherry, green olives, bell peppers, almonds, avocado, aloe, and olives; Vitamin B5 in various sources including in corn, cauliflower, and sweet potatoes; Vitamin B2 in various sources including raspberries, grapes, and apples; Vitamin B12 in various sources including soybeans and lemon; Vitamin B9 in various sources including broccoli, pineapples, and garlic; Vitamin B6 in various sources including strawberry, lemon, and spinach; Vitamin B1 in various sources including cabbage, pistachio, and almonds; Vitamin B7 in various sources including cauliflowers, bananas, and peanuts; Vitamin B3 in peanuts, nettle, and apricots; and Vitamin C in various sources including lime. The composition and structures of the vitamins are provided. This book provides a current review in the field of vitamins and pharmacology.