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A vegetarian diet has been advocated by everyone from philosophers such as Plato and Nietzsche, to political leaders such as Benjamin Franklin and Gandhi, to modern pop icons such as Paul McCartney and Bob Marley. Science is also on the side of vegetarianism. A multitude of studies have proven the health benefits of a vegetarian diet to be remarkable.
'Vegetarian' is defined as avoiding all animal flesh, including fish and poultry. Vegetarians who avoid flesh, but do eat animal products such as cheese, milk, and eggs, are ovo-lacto-vegetarians (ovo = egg; lacto = milk, cheese, etc.). The ranks of those who eschew all animal products are rapidly growing; these people are referred to as pure vegetarians or vegans. Scientific research shows that ovo-lacto-vegetarians are healthier than meat-eaters, and vegans are the healthiest overall. Preventing Cancer
Vegetarians also have lower rates of colon cancer than meat-eaters. Animal products are usually high in fat and always devoid of fiber. Meat and dairy products contribute to many forms of cancer, including cancer of the colon, breast, and prostate. Colon cancer has been directly linked to meat consumption. High-fat diets also encourage the body’s production of estrogens, in particular, estradiol. Increased levels of this sex hormone have been linked to breast cancer. One recent study linked dairy products to an increased risk of ovarian cancer. The process of breaking down the lactose (milk sugar) into galactose evidently damages the ovaries. Vegetarians avoid the animal fat linked to cancer and get abundant fiber and vitamins that help to prevent cancer. In addition, blood analysis of vegetarians reveals a higher level of Natural Killer Cells, specialized white blood cells that attack cancer cells.
Vegetarian diets also help prevent heart disease. Animal products are the main source of saturated fat and the only source of cholesterol in the diet. Vegetarians avoid these risky products. Additionally, fiber helps reduce cholesterol levels, and animal products contain no fiber. One study even demonstrated that a low-fat, high-fiber, vegetarian diet combined with stress reduction techniques, smoking cessation, and exercise could actually reverse atherosclerosis - hardening of the arteries. Heart diets that include animal products are much less effective, usually only slowing the process of atherosclerosis. Lowering Blood Pressure Back in the early 1900s, nutritionists noted that people who ate no meat had lower blood pressure. It was also discovered that vegetarian diets could, within two weeks, significantly reduce a person’s blood pressure. These results were evident regardless of the sodium levels in the vegetarian diets.
Non-insulin-dependent (adult-onset) diabetes can be better controlled and sometimes even eliminated through a low-fat, vegetarian diet along with regular exercise. Because such a diet is low in fat and high in fiber and complex carbohydrates, it allows insulin to work more effectively. A diabetic person can more easily regulate glucose levels. While a vegetarian diet cannot eliminate the need for insulin in people with insulin-dependent (childhood-onset) diabetes, it can often reduce the amounts of insulin used. Some scientists believe that insulin dependent diabetes may be caused by an auto-immune reaction to dairy proteins
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