Understanding food is crucial know-how for any human. It is surprising that in our world there are many persons, especially the young, who know more about sports and films than the basics of what constitutes good and healthy food. The first thing to know about food is that healthy food is not expensive. Much of it is derived from grass and other vegetation that grows in abundance on our planet, despite a burgeoning human population that exceeds seven billion. Milk and meat are produced by grass-eating animals and we as humans consume the seeds of grass as wheat, corn, rice, etc. let us just briefly list the types of food a human requires:

Carbohydrates: These are a primary requirement to mitigate human hunger. Wheat is a primary source for it supported by other food grains such as rice, corn, etc. Wheat has excellent storage capacity and it can be consumed in a variety of ways such as numerous kinds of leavened and unleavened bread, noodles, spaghetti, biscuits, semolina, etc. If bread is central to food and if it is prepared at home, food costs come down drastically and food becomes inexpensive. At present, there is a sufficient amount of wheat on our planet to feed all humans as well as domestic animals besides. More food goes waste on our planet due to apathy and carelessness than the food required by all humans who go to bed on a hungry stomach. A substitute for food grain carbohydrates is certain root crops such as potatoes.

Proteins: Foodgrains can provide a limited amount of protein to the human body. However, good health requires supplementing this with protein from other foods. The best such are eggs and milk or milk products. Whereas milk appears to be the best protein source for most …