Guest guest Posted September 7, 2006 Report Share Posted September 7, 2006 The following article just came out promoting olive oil as heart healthy... you can read it here... http://news./s/nm/20060906/hl_nm/virgin_olive_oil_dc_1 here is my response (rough draft)... which we are turning into a press release today.... but the point I make is more applicable to us doing CR-ON, than anyone else. PS< with all due respect to Francesca and the list.. i am for warning you... it is long.. This is a news story and old news... there are already several other studies showing that IF there was any benefit to olive oil, it was in the phytochemicals in it and not anything to do with the fat. Lets look carefully at it... >>The findings suggest that virgin olive oil has more going for it than its supply of heart-healthy monounsaturated fat, according to the study authors. Mono-unsaturated fat is not heart healthy. When fed to monkeys in isolated controlled studies it caused build up of plaque and heart disease. Its less harmful than saturated fat and that is where the spin is. Take someone eating lots of butter. Take away the butter and replace it with the same amount of olive oil and their cholestrol goes down. So, it appears to be healthier. But, the cholesterol went down cause you take out the butter not cause you add in the olive oil. If you take a healthy Okinawan who has a cholesterol under 150 and the lowest risk of heart disease in the world, addding olive oil to his diet doesnt make him healthier or lower his risk for heart disease.. >>Polyphenols, they say, may account for some of the health benefits that have been attributed to the oil. Amen. But, you get more of them per calorie (important to anyone watching their weight and trying to get as many nutrients per calorie) in green leafies >>In fact, virgin olive oil is the only vegetable oil that's rich in polyphenols, Dr. -Isabel Covas, the study's lead researcher, told Reuters Health. Maybe, but most all plant foods are rich in polyphenols. Now watch carefully... >>For their study, Covas and her colleagues had 200 young and middle-aged men use each of three olive oils for three weeks apiece. One oil was a virgin olive oil high in polyphenols; the other two were more heavily processed varieties with moderate to low polyphenol levels. Typical people eating typical diets.. >>The men used the oils in place of other dietary fats. There is it.. its only when subsituted for other fats. And, in the typical american diet, which is usually either hydrogenated fats, trans fats, or saturated fats.. Of course it is better. >>At the end of the study, the researchers found that the men's levels of " good " HDL cholesterol were highest after their three weeks on virgin olive oil. This is only a bio marker and not an endpoint. its just a number and one number in a risk group of many. Just because one number goes up does not mean you are suddenly healthier. What they would have to do is follow these people for years and prove they actually have less heart disease. But dont worry, its already been done. The okinawans and rural japanese have been compared to those in crete, greece and italy and the rural asians win every time. And, these rural asians have extremely low HDLs in the 20s. So, just raising HDL doesnt always equate to better health. Remember the monkeys above that were fed the olive oil and had heart disease ? Well, during their life, and eating the monkey diet with olive oil added... their HDLs went way up.. But, in the end, it didnt translate to a better endpoint.. less heart disease...but the actual opposite. And there is much other data showing that HDL is only protective in the presence of high Total and LDL cholesterol. And that the rise you see in HDL from eating more fat, may not provide the same benefit as someone who has a naturall high HDL. In addition, there are subfractions of HDL and the ones that go up from eating more fat, may not be the ones that are beneficial but nore " neutral " . Numbers are important, as biomarkers but dont let them fool you when taken out of context of the big picture. >>They also showed a greater decline in markers of so-called oxidative stress -- a process that helps deposit particles of " bad " LDL cholesterol on the artery walls and can lead to a hardening and narrowing of the vessels supplying the heart. Again, lets not confuse biomarkers with endpoints.. they didnt measure the artery walls, only the oxidative chemicals. And yes, the polyphenols would have these effects. But, lets say they added 1 TB of olive oil to the diet and got some polyphenols from it.. That 1 TB is 120 calories. Instead of the olive oil, that could have added the same calories of green leafy vegetables, which would be about 1.5 lbs. Guess which would have more polyphenols..??? So if the purpose is to produce more polyphenols, less oxidative chemicals, than the green leafies win... per calorie. They would also have every other vitamin and mineral you need (which the olive oil doesnt) and a lot of fiber that you need (which the olive oil doesnt). >>Monounsaturated fat is well known to be a healthier alternative to the saturated fat found in animal products like butter, Again... a " better than " not a " good in and of itself " . the body has NO need for monounsaturated fat. The only fat your body needs is the essential (must have) fat called omega 3s . Olive oil is a very poor source... in fact, to get your needed amount of omega 3s from olive oil you would need to drink 7 oz which is 1800 calories and 30 grams of saturated fat. Better than butter? Yes. Good in and of itself? no. So, see carefully how the take one aspect of it (polyphenols) out of context of the whole picture, and frame the one aspect in a reference (compared to saturated fat) that is somewhat misleading, and create a " advantage " that only exists in this out of context, miopic view. >>>But she stopped short of recommending virgin olive oil as a replacement for other vegetable oils, saying large clinical trials are needed to see whether there's a health advantage. Amen!! 120 Calories Olive Oil Phytosterols 30 mg 120 calories Green Leaf Lettuce Phytosterols 330 mg Now, for someone watching their weight, lets level out phytosterols and compare relative calories.. 11 Calories of Green Leaf Lettuce is 30 mg Phytosterols 120 Calories of Olive Oil is 30 mgs Phytosterols In addition, the leaf lettuce will win on virtually every other nutrient. I rest my case! Regards jeff Quote Link to comment Share on other sites More sharing options...
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