Recently, there has been an ultimate change in the global health and wellness industry from disease treatment to preventing chronic diseases. The use of nutraceuticals and functional foods in prevention efforts could lead to a decreased dependency on drugs. Nutraceuticals are products, which other than nutrition are also used as medicine. The term nutraceutical is used to describe medicinally or nutritionally functional foods. Nutraceuticals, which have also been called medical foods, designer foods, phytochemicals, functional foods and nutritional supplements, include such everyday products as bio yoghurts and fortified breakfast cereals, as well as vitamins, herbal remedies and even genetically modified foods and supplements. Nutraceuticals may be applied to improve health, delay the aging process, prevent chronic diseases, increase life expectancy, or support the structure or function of the body. These days, nutraceuticals have received substantial interest due to prospective nutritional, safety and therapeutic effects. Recent studies have shown promising results for these compounds in numerous complications. In this book much effort has been devoted to discuss new concepts about nutraceuticals based on their diseases modifying symptoms. Emphasis has been made to present herbal nutraceuticals effective on hard curative disorders related to oxidative stress including allergy, Alzheimer, cardiovascular, cancer, diabetes, eye, immune, inflammatory and Parkinson's diseases as well as obesity. This book entitled Pharmaceuticals to Nutraceuticals inspects the scientific evidence of these foods as effective helpers to pharmacotherapy throughout all stages of treatment of a number of diseases, thus indicating that pharmaceuticals and nutraceuticals can and should coexist. It specifics quality, safety, and efficacy of foods, drugs, and nutrients; regulatory outlooks; and future industry drifts. Nutraceuticals in the form of vitamins, minerals, antioxidants, dietary fibres and omega-3 polyunsaturated fatty acids with physical exercise are endorsed for inhibition and usage of cardiovascular diseases. The molecules such as polyphenols change cellular metabolism and signaling, which is believed to moderate arterial disease. Flavonoids are extensively disseminated in vegetables, onion, endives, cruciferous, grapefruits, apples, cherries, pomegranate, berries, black grapes, and red wine, and are available as flavones, flavanones and flavonols, contributing a key role in prevention and curing the cardiovascular diseases.