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man's diet from the past reveals hope for the future
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fish is well known as the principal source of omega-3 fatty acids which can help reduce the risk of heart disease, diabetes and arteriosclerosis. but new studies show that lean meat, fruit and vegetables can also contain useful amounts of omega-3. professor bruce watkins of the center for enhancing foods to protect health at purdue university in the us is conducting an experiment of feeding algae that is high in omega-3s to dairy cattle to increase the amount of the so-called good fat in their milk. "we collected the milk fat and made cheese, butter and yoghurt that has high levels of omega-3," he said. he said that eggs with added omega-3 were already available on the market, and that in the future, more foods will be available with the same additional ingredient. omega-3 can help reduce the risk of serious disease because it balances the effects of omega-6 fats, which are known to be a particular risk factor when found in high quantities. red meat, especially from farm-reared, corn-fed cattle, is a source of high levels of omega-6, but watkins' research has shown that wild ruminants such as deer, elk, bison and grass-fed cattle have a better omega-6/omega-3 fat ratio. "both grass-fed steers and the wild ruminants have a ratio of omega-6 to omega-3 fatty acids slightly above two in meat. in other words, two parts omega-6 to one part omega-3. that ratio is much lower than the ratios of 5-to-1 to 13-to-1 reported in previous studies for grain-fed steers" said watkins. the results of the study were published in the january issue of european journal of clinical nutrition, and was helped by a study of the dietary habits of the few isolated hunter-gatherer societies - such as the nanamiut of alaska and the aborigines of australia - that have remained into the 20th century. researchers have found that modern maladies, such as heart disease, high cholesterol, obesity and diabetes, are rare in these populations. "over the past several decades, numerous studies have found that indigenous populations have low serum cholesterol and triglyceride levels," said anthropologist loren cordain, professor of health and exercise science at colorado state university and co-author of the study. however, cordain stressed that previous studies had found that 97 per cent of the world's hunter-gatherer societies would have exceeded recommended guidelines for fat. this fits in exactly with watkins' findings on the effects of specific types of fat. "current research is showing that, with the decline of fat in the diet, the amount of fat isn't as important as the relative amounts, or ratio, of specific fats in the diet. it's a qualitative issue, not a quantitative issue. by eating more of the good fat you can lower your cholesterol and reduce your risk of cardiovascular disease," watkins said. this balance of fats has changed dramatically in the past century, he added. "modern diets, especially in the past 100 years, have changed to where we're consuming excess amounts of omega-6 fat. omega-6 is found in high levels in many of the oil seed crops that we consume, but it's also found in the meat of the livestock that eat these grains, as this study shows."
Source :Food Ingredients Food Science - Additives, Flavours, Starch
Date :
6
February
2002
Category :
Food And Health
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nearly one million people fall victim to heart disease every year. the vast majority of these people are unaware that this devastating condition can be prevented with a natural approach to diet. researchers from the european epic (european prospective investigation into cancer and nutrition) study have developed a plan that can reduce the risk of coronary artery disease by 81%. medical researchers understand that heart disease begins early in life and progresses to threaten life as we approach our senior years.
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if you are already eating a vegetarian diet or if you are moving in that direction, then by simply eating enough food from a variety of sources (consuming sufficient calories for your energy needs), you will automatically be getting enough protein. why? because each and every plant food contains complete protein in varying amounts. some plant foods, including broccoli, asparagus, bamboo shoots, and brussels sprouts, are very high in protein.
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elevated blood pressure exerts a health threatening effect on every organ in the body as it slowly acts to cause our veins and arteries to deteriorate. small cracks develop as a result and must be patched quickly to avert disaster. in an attempt to ensure our survival, oxidized ldl cholesterol and calcium are used as a biological caulk to patch the damage and prevent us from bleeding to death. this mechanism will help to avoid immediate catastrophe but eventually our arteries will narrow and a deadly clot will form as a result.
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athens, greece—eating according to the mediterranean diet helped improve heart function in those who have acute coronary syndrome, according to a new study from first cardiology clinic school of medicine university of athens greece (am j clin nutr. 2010 may 19). in the study, those who adhered to the diet rich in fruit, vegetables, fish, nuts, low-fat dairy, whole grains and olive oil experienced a preservation of left ventricular systolic function and a better long-term prognosis of their disease.
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for the first time, a long-term health study has demonstrated that the mediterranean diet may help diabetes patients control their blood sugar without the use of medication."a mediterranean-style diet is a very important part in the treatment of diabetes," said endocrinologist loren greene of new york university medical center, who was not involved in the study. "we knew that, but there just hasn't been a good study to confirm this before.
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it all started a few decades ago, when well-known health experts began recommending that people eliminate fat from their diets. a lot of people jumped on the no-fat train because some studies at the time seemed to point to fat as the villain of our modern diet. it soon became obvious to health professionals that completely eliminating fat was not any kind of solution. first of all, most people couldn`t stay on this type of extreme diet for any length of time.
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Coca.Cola
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PEPSI
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Mcdonald
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Nestle
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Mars
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Baskin & Robins
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Nutrika
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Mumika
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Chika
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