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Abstract
Nutraceutical is a wide term that describes/portrays any product derived from sustenance sources with other health benefits besides the essential dietary value found in foods. Probiotics are the live microorganisms which are beneficial to the host. These have shown a significant potential therapeutic action for a variety of diseases, but the mechanism responsible for this is not fully known. Though the mechanism is not fully understood, there are certain steps which are believed to be involved in this.The possibility is that there could be increased adhesion to intestinal mucosa, or enhancement of an epithelial barrier. Competitive exclusion of pathogenic microorganisms can also be thought about. These may also lead to the production of antimicrobial substances and strengthen the immune system. A daily bowl of fresh curd helps in fighting a wide range of diseases. It is used to treat various illnesses and diseases like liver diseases, insomnia, cancer, and diabetes.