Introduction: We all need nutrients {Energy, carbohydrate, fat, protein, Vitamins, Minerals, etc.} for growth, development,  smooth functioning of body parts,  fighting against various diseases, etc.  We get all these nutrients from our daily diet.  Food grains, pulses, legumes, vegetables, fruits, dairy products, eggs, meat, chicken, fish, seafood, and other natural resources provide us with nutrients.  No single diet component has all the nutrients. Only a balanced diet can provide us the required nutrients. Lack of nutrients in our body will cause various diseases. Supplementary diets or nutrients are available in the market to fulfill our body's need for nutrients. What are nutrients?  What are the sources of protein, vitamins, minerals, etc.?   What diseases will develop due to lack of nutrients? What is available in the market to fulfill the need for dietary supplements? All these things, we will explore in this blog. So, let us sta...