Nature of Foods and Nutrition

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Human beings can get edible foods from both animals and plants. Heterotrophic animals now depend completely on plants for their food. So if we need to have more foods the can sustain the lives of people, then we must take proper care of the animals and plants that are crops. Hence, there will be the need for a considerable management system both in farming and in husbandry.

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There would be rapid development of seedling and high-yielding breeds of poultry, thus, animals must be developed. Thus foods and nutrition cannot be divorced from agriculture. Again, we shouldn't wonder why foods and nutrition and agriculture came together under the canopy of one organization which is the Food and Agriculture Organization with its headquarters in Rome.

The major reason why we classify human beings as higher animals from the lower ones like cows, goats, elephants, etc, is that we can purify our foods before consuming them. The crops we eat will under several processes after they must have been harvested before we can eat them up. Let's take the cereals as a criterion, wheat which is another form of cereal is processed into flour which is then employed by the baking businesses. Cassava too is refined into gari.
Hence, different types of edible dishes are made from assorted foodstuffs. This will remain us that the knowledge of food processing and home economics which deals with the preparation and service of food, is important to nourishment.

Food contents must under the proper consumption, then be digested, absorbed, and metabolized before we can derive its nutrition for the healthy maintenance of the body. Thus, a nutritionist must, however, learn and understand how the body makes use of these nutrients and how the wastes are being eliminated from metabolism.

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This will educate them to comprehend what food will be most utilized by the body. The process of digestion absorption metabolism in short the science of physiology that is functioning of the human body system must be understood by a nutritionist.