What is Nutrition? Nutrition is the biochemical and physiological process by which an organism uses food to support its life. ( https://en.m.wikipedia.org/wiki/Nutrition ) It 's the process by which an organism gets its supply of nutrients required by its body and cells to stay alive."  ( https://punchng.com/the-role-of-nutrition-in-achieving-optimal-health-1/ ) At the most basic level, it's about eating a regular, balanced diet. ( https://www.health.harvard.edu/topics/nutrition ) Nutrition and Physical Health 1. Reduce Risk of Diseases As  you  may  already  know,  having a nutritious and balanced diet helps to  reduce the risk of various diseases, including heart disease, diabetes, stroke, certain cancers, high blood pressure, high cholesterol and osteoporosis. It can also help improve our ability to fight off illnesses. ( https://www.cdc.gov/chronicdisease/resources/publications/factsheets/nutrition.htm , https://www.osteoporosis.foundation/health-professionals/pre