Eating foods rich in antioxidants (like vitamin E and vitamin C, carotenoids, and selenium) may lower your risk of heart disease. Such foods include fruits, vegetables, whole grains, nuts, and seeds. According to studies, however; benefits of eating extra anti-oxidant pills are still questionable.

Olive oil is an integral part of the "Mediterranean diet" which is associated with sensible tasty portions and slower, more enjoyable eating. People who eat a "Mediterranean diet" have been shown to have a remarkable variety of health benefits.

Olive oil can quickly satisfy hunger and lead to fewer total calories ingested at mealtime.

Proteins are highly complex molecules which contain the elements of carbon, hydrogen, nitrogen, and usually sulfur or sulphur. They are synthesized by living cells and are an essential part of the structure of the cell and its nucleus. The plant proteins are more easily isolated in crystalline form. Proteins are stored in plants in the form of aleurone grains.

The selenium content of normal adult humans can vary widely. Values from 3mg in New Zealanders to 14mg in some Americans reflect the profound influence of the natural environment on the selenium contents of soils, crops, and human tissues. Approximately 30% of tissue selenium is contained in the liver, 15% in kidney, 30% in muscle, and 10% in blood plasma.

The development of obesity depends on both genetic factors and environmental factors. In genetically predisposed individuals, lifestyle factors (such as diet and exercise) and social, behavioural, cultural and community factors determine whether or not obesity develops. Obesity increases the risk for many serious diseases, e.g. diabetes, cardiovascular diseases and joint diseases.

For people with diabetes, healthy eating is not simply a matter of "what one eats", but also when one eats. The question of how long before a meal one should inject insulin is one that is asked in Sonsken, Fox and Judd (1998). The answer is that it depends upon the type of insulin one takes and whether it is long, medium or quick-acting insulin.

Red meat derives its color from its myoglobins, a protein that carries oxygen to an animal's muscles. Significantly, red meat does not refer to how well a piece of meat is cooked or its coloration after cooking. A steak or hamburger is a red meat whether it is served rare and bloody, or cooked until it is brown or gray, or even burnt to a crisp.