Nutrition is the study of nutrients in food, how the body uses nutrients, and the relationship between diet, health, and disease. Sustenance and intestinal limit are by and by interrelated. The focal inspiration driving the gut is to process and hold supplements with a particular ultimate objective to care forever. Nutrition has become more focused on metabolism and metabolic pathways (biochemical steps) through which substances inside the body are transformed from one form to another. A very?low calorie diet (VLCD) is a clinically supervised diet plan that involves eating about 800 calories a day or fewer which prevents Gastrointestinal disorders. Nutrition also focuses on how diseases, conditions, and problems can be prevented with a healthy diet. Probiotics have many advantages such as reducing gastrointestinal discomfort, improving immune health and in relieving constipation. Dietary enzymes and Single cell proteins can be used as supplements. The term probiotic is currently used to name ingested microorganisms associated with benefits for humans and animals. Probiotics are microorganisms that provide health benefits when consumed. With the change of momentum frameworks of dietary help, the hopelessness and mortality related with endless GI disease can be lessened.