Onions contain a number of sulfides similar to those found in garlic, which can reduce blood lipid and blood pressure. In India, communities that do not eat onions or garlic had blood cholesterol and triglyceride levels substantially higher, and blood clotting times shorter, that communities that do comieronl amounts of garlic and onion. Onions are a rich source of flavonoids, substances known to provide protection against cardiovascular disease. Onions are also natural anticlotting agents since they possess substances with fibrinolytic activity and can suppress platelet-agglutination. The effect of anticlotting in onions closely correlates with their sulfur content.

Cancer Prevention

Onion extracts are rich in a variety of sulfides, provide some protection against tumor growth. In the central part of Georgia, where Vidalia onions are grown, mortality rates of stomach cancer are about half the average for the United States. Studies in Greece have shown a high consumption of onions, garlic and other allium herbs that are have more protection against stomach cancer.

China with the highest intake of onions, garlic and other Allium vegetables have a risk of stomach cancer 40 percent lower than countries with lower consumption.

The growing consumer trend to purchase the less pungent, the milder onion varieties may not be the best, and the onions with a stronger flavor and higher astringency appear to have superior properties healthier.

Use and Safety

Onions have a universal appeal. They are safely consumed by most people. However, consuming large quantities of onions can lead to digestive problems and gastrointestinal irritation that can result in nausea and diarrhea. No interactions with drugs, except they can potentiate the action of anticoagulants.

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These diseases affect more specific population groups (workers, persons exposed to certain pollutants, victims of obesity.) and their regional prevalence is marked (in France at the end of the twentieth century in the Nord-Pas-de - Calais and Alsace, two regions significantly more affected than other regions and the national average, as more cancers). They are often among the factors that decrease the longer the life expectancy of a population.

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Cardiovascular diseases occur when the blood flow in certain arteries vessels, such as the coronary arteries around the heart or arteries to the brains, is insufficient. Usually this is a result of vascular constriction (atherosclerosis). The biggest danger is that someone a heart attack or a stroke can get. A heart attack is often preceded by chest pain (angina pectoris), stroke by stroke or TIA (stroke). Other arterial arterial disease are: Intermittent claudication (narrowing in the artery to the legs), aneurysm of the aorta in the abdomen, narrowing of the carotid, pulmonary embolism, and Raynaud’s phenomenon. In Raynaud’s phenomenon is a poor blood flow to the limbs.

Blood transports oxygen through arteries and veins and food and waste through the body. Oxygenated blood from arteries cause the heart to other parts of the body. Since the oxygen from the blood removed. An extensive system of veins bring oxygenated blood blow to the farthest ends of the body: the tips of our fingers and toes. They ensure that our fingers and toes properly. The arteries bring oxygen-depleted blood to the body of wastes back to the heart.

Cardiovascular disease may be related to hereditary factors. Some heart defects are already present at birth. These are “congenital heart defects. Most heart and vascular problems are created by vascular constriction. This in turn is usually caused by “risk”. We distinguish three types of risk:

• Factors depending on one’s lifestyle (poor nutrition, smoking, alcohol abuse, stress and lack of exercise)
• Conditions and factors that (partly) curable or avoidable (elevated cholesterol, diabetes, obesity, hypertension)
• Immutable factors (age, sex, hereditary factors)

Omega-3 fatty acids are good for including cardiovascular disease and lowering blood fats. These essential fatty acids are found particularly in fish (oil). Read all about quality fish oil in the file!

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