Nutraceuticals, up today, do not have a specific definition distinct from those of other food-derived catego-ries, e.g. food supplements, herbal products, pre and probiotics, functional foods, etc. They have, however,
a pharmacological beneficial effect on health. Many studies have been recently addressed to assess their safety, efficacy, and regulation since they are getting growing attention by market and research, with the aim to clear the difference between them and other market available food-derived products that claim beneficial effect on health.