Cancer Research
Diet and Cancer Research
Diet and Cancer Research
Of the many diseases that affect people in these days, cancer is one of the most feared. But despite the wealth of scientific data, most people still do not know how they can reduce their risk of developing cancer. According to the National Cancer Institute, up to 80 percent of cancers are due to identified factors, and therefore are potentially preventable. Thirty percent are due to the consumption of snuff, and as much as 35 percent to 50 percent are due to food. It is easy to control these and other risk factors.
What is cancer?
Cancer arises when abnormal cells begin to multiply out of control. Groups of cells that form tumors and invade tissue healthy, often spreading to other parts of the body. Carcinogens are substances that promote the development of cancer cells. They can come from food, air, or even from within the body. Most carcinogens are neutralized before damage can occur, but sometimes attack the cell's genetic material (DNA) and alter. It takes years to develop a sensitive tumor. During this time, compounds known as inhibitors can maintain cell growth. Some vitamins in plant foods are known to be inhibitors. Dietary fat, on the other hand, is known to be a promoter who helps abnormal cells grow quickly.
Fiber fights cancer
In 1970, British physician Dennis Burkitt noted that a diet high in fiber reduces tract diseases tract. He noted that in countries where diets are high in fiber (ie, plant-based diets), there were fewer cases of colon cancer. Throughout the world, has been true. The higher intakes of fiber are found in non-industrialized countries where meat is scarce and plant foods fill the menu. Animal products contain no fiber. U.S. and other Western countries whose diets are based on products of animal origin have the highest rates of colon cancer.
While no sure exactly how fiber protects against digestive disorders, there are several possibilities. By definition, fiber can not be digested by humans early in the digestive process. It moves food more quickly through the intestines, helping to eliminate carcinogens. It also draws water into the digestive tract. Water and fiber to the stool bulkier and therefore dilute carcinogens.
Bile acids are secreted into the intestine to help digest fats; there, the bacteria can change the chemical acids that promote colon cancer. The fiber can bind bile acids and evict those the intestines.1 Also, bacteria in the colon ferment fiber to create a more acidic environment which can cause less toxic bile acids.
Fiber is also protective against other forms of cancer. Studies have shown that stomach cancer and breast cancer are less common in diets.2 high fiber, fiber 3 affects the levels of estrogen in the body. Estrogen is normally secreted in the intestine moves, where the fiber is attached with the hormone and body.4 Without adequate fiber, estrogen can be reabsorbed by the intestine into the bloodstream. High levels of estrogen are related with an increased risk of breast cancer.
In the U.S., the average daily intake of fiber is 10 to 20 grams per day. Experts recommend 30 to 40 grams per day. The best sources of fiber are whole grains, beans, peas, lentils, vegetables and fruits. Foods that are close to their natural state, unrefined and unpeeled are higher in fiber.
Fat increases cancer risk
Cross-cultural studies have shown that populations with higher levels fat intake are also those with the highest rates of death from breast and colon cancer. The lowest rates are found in groups with lower consumption of Migration fats.5 studies to rule out the influence of genetics.6
Many studies suggest that dietary fat increases the risk of a cancer, and can also affect negative rates of breast cancer survival for those who have cancer.7
Although the total amount of fat you eat is a concern, there is no evidence that animal fat is much more harmful than vegetable fat. One study noted a 200 percent increase in breast cancer among those consuming beef or pork five six times a week. Dr. Sheila Bingham, a form of cancer researchers from the University of Cambridge, notes that the meat is more closely related to colon cancer than any other factor.8 meat and milk are also linked to prostate and ovarian cancers.9
How fat affects cancer risk
Fat has many effects on the body. Increased hormone production and thus raises the risk of breast cancer. Also stimulates the production of bile acids that have been linked to colon cancer.
The average diet in the United States is about 37 percent fat. The Institute National Cancer suggests that people with low this percentage to 30 percent, however, studies have shown that fat intake should be well below 30 percent to have an affect cancer. Ten to 15 percent more likely to be useful.
The importance of vegetables
Not only vegetables are low in fat and high in fiber, also contain many cancer-fighting substances. Carotenoids, the pigment that gives fruits and vegetables their dark colors, have been shown to help prevent cancer. Beta-carotene, found in dark green and yellow vegetables, helps protect against lung cancer and may help prevent cancer of the bladder, mouth, larynx, esophagus, breast and other sites.
Vegetables such as cabbage, broccoli, kale, turnips, cauliflower and Brussels sprouts contain flavones and indoles, which are believed to efforts to combat cancer.
Vitamin C, found in citrus fruits and many vegetables, may lower risks of cancers of the esophagus and stomach. Vitamin C acts as an antioxidant, neutralizing cancer-causing chemicals that form in the body. Also blocks the conversion of nitrates to cancer-causing nitrosamines in the stomach.
Selenium is found in whole grains and has the same antioxidant effect such as vitamin C and beta carotene. Vitamin E also has this effect. Caution is advised in supplementing selenium, which is toxic in large doses.
Alcohol
Excessive alcohol consumption increases the risk for cancers of the breast, mouth, pharynx and esophagus. When combined with smoking, these risks are triggered. It also raises risks for stomach, liver and colon cancers.10
Vegetarians are better
All evidence points to a low-fat high-fiber diet that includes a variety of fruits, vegetables, whole grains and beans, as the best for cancer prevention. As expected, vegetarians, whose easy diets meet these requirements, are at lower risk for cancer. Vegetarians have about half the cancer risk of meat-eaters.11
Vegetarians have higher blood levels of beta-carotene. They consume more vitamin C, beta-carotene and fiber that eat meat. Vegetarians also have systems stronger immune. German researchers recently discovered that vegetarians are more than twice the NK cell activity of meat-eaters.12 cells Natural killer cells are specialized white blood cells attack and neutralize cancer. In addition, vegetarians tend to eat more soy products carnivores. Soybeans contain many substances that are anti-cancer, such as lignans and phytoestrogens. A diet rich in soy may be one reason for the low incidence of breast cancer in Asia.
Conclusion
A cancer prevention diet is one that is high in fiber, low in fat (especially animal fat) and includes generous servings of fruits and vegetables. It also minimizes or excludes alcohol. The best diets are pure vegetarian diets.
Bibliography:
1. Kritchevsky D. Diet, Nutrition and cancer: the role of fiber. Cancer. 1986; 58:1830-6.
2. Risch HA, Jain M, Choi NW, et al. Dietary factors and incidence stomach cancer. Am J Epidemiol. 1985, 122:947-59.
3. Lubin F, Wax Y, Modan B, et al. Role of fat, animal protein and dietary fiber in the etiology breast cancer: a case-control study. J Natl Cancer Inst 1986; 77:605-12.
4. Goldin BR, Adlercreutz H, Gorbach SL, et al. Estrogen excretion patterns and plasma levels in vegetarian and omnivorous women. N Engl J Med 1982, 307:1542-7.
5. Lan HW, Carpenter JT. Breast cancer: incidence, nutritional problems, and treatment approaches. J Am Diet Assoc. 1987; 87:765-9.
6. M Minowa, S Bingham, JH Cummings. Dietary fiber intake in Japan. Human Nutr Appl Nutr. 1983; 37: 113 –
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7. Wynder EL, Rose DP, Cohen LA. Diet and breast cancer in causation and therapy. Cancer. 1986; 58:1804-13.
8. Bingham SA. The meat, starch and non-starch polysaccharides and bowel cancer. Am J Clin. Nutr 1988; 48:762-7.
9. Rose DP, Boyar AP, Wynder EL. Comparisons international mortality rates for cancer of the breast, ovary, prostate and colon, and per capita food consumption. Cancer. 1986; 58:2363-71.
10. Breslow NE, JE Enström. Geographic correlations between cancer mortality rates and alcohol-consumption of snuff in the United States. J Natl Cancer Inst 1974; 53:631-9.
11. RL Phillips. Role of life and dietary habits in risk of cancer among Seventh-day Adventists. Cancer Res 1975, 35 (Suppl) :3513-22.
12. M. Malter natural killer cells, vitamins and other components of the blood of male vegetarians and omnivores. Nutr and Cancer. 1989; 12:271-8.
About the Author
Fresh Earth Food Store
This Article Courtesy of the Fresh Earth Food Store Website: http://www.freshearth.co.za/store/p-2292-diet-and-cancer-research.aspx
The Fresh Earth website offers: Healthy Meal Plans, Vegetarian Recipes, Health Articles, Expert Advice and Organic Grocery Shopping Online. http://www.freshearth.co.za
How I can get a lot of money very fast so you can donate to cancer research?
What are some good organizations that make money for cancer research? My mom has / had 3 types of cancer. I'm too young to get a job, I'm still in middle school.
First, I'm sorry for what happened, and I really hope that soon there will be a cure for cancer, and every other disease. Unfortunately, if you are under age, you would not be able to work, or to claim the prize in the lottery, either. i would suggest you focus on their schoolwork, only the best you can do to show his mother with a nice guy who is doing very well in school (which means a lot to all mothers, and that surely will give them the strength and willingness to fight the disease and survive.) let your mother you worry about it, and as new technologies and medical science are getting better each day anything that is not curable today … tomorrow may be curable well, hang in there and never give up, things will get better for her, for you and all who suffer. You may want to spend all his free time with your mother, to make her happy and feeling safe. which is perhaps the best thing you can do at this time. want his mother, and every mother good health and all the best.
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