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Look at the Japanese Sumo wrestlers. They don't have any higher rates of atherosclerosis while getting fat on purpose by consuming a lot of carbohydrates in the form of rice and of course some real fat from meat. I cannot speak of my arteries but after the 4-years on flax/fish oil I ended up with a billiary polyp (a kind of gall bladder stone) which shrank to its half after 1 year of stopping any PUFA supplementation and replacing vegetable oils with meat fat and butter as much as practical. Gall bladder is the organ which removes/detoxify PUFA-derived lipid peroxides from the body. The high SFA regime also got my cholesterol way up but that's not enough to force me changing the diet again especially when I feel considerably better now.
One thing about the carbs which makes me wonder is that the low carb people don't seem to suffer from the excessive PUFA consumption - see e.g. the Cordain site www.thepaleodiet.com. After watching the Gary Taubes lecture about the obesity epidemic (http://webcast.berkeley.edu/event_details.php?webcastid=21216 ) it seems to me that in the absence of carbohydrates the body cannot store the dietary PUFAs and therefore burns them for energy right away before they can cause any substantial damage. Even for the flax oil in paintings it takes some time to oxidize so the problem may arise only when you have the PUFAs wondering around in your body fat stores. |
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