“Let thy food be thy medicine and thy medicine thy food”

The resounding and appealing message that this quote delivers is that we must all be very mindful of what we eat, as food's function is more than to merely satisfy one's hunger. An individual's diet is the only source of the body's fuel, vitamins, electrolytes, repair materials etc. There is no other naturally designed method of entry into the physiological system but through ingestion followed by digestion and absorption.

Therefore a poor diet may lead to insufficiency in one or more of these vital compounds which may ultimately lead to dysfunction.