The foods that we consume play more of a role in our health than perhaps anything else. It may be a cliché, but the saying, "you are what you eat", rings with truth and good nutrition leads to a healthy body and a sound mind. Read on to learn more about the science of nutrition.

Nutritionists evaluate the diets of patients and clients suffering from medical disorders and suggest ways of fighting various health problems by modifying the patient's intake of certain food items. As one nutritionist puts it, "It's basically all about balance - the older you get, the more you begin to understand the importance of balance in your life, and your diet is no exception."

The body requires six main things in order to function correctly: carbohydrates, protein, fat, vitamins, minerals, and water. These all need to be consumed on a daily basis. If one of these becomes low or high (deficient or excess), a negative impact occurs on the body and illness or a general feeling of being unwell may result.