Chocolate and Cocoa Extracts beats cholesterol
Chocolate and Cocoa Extracts beats cholesterol
Diets high in flavonoid-rich cocoa powder and dark chocolate have a favourable effect on LDL ("bad" cholesterol) when compared with diets that limit or exclude other flavonoid sources such as tea, coffee, wine and onions, US researchers reveal this week.
Scientists at Penn State led by Dr. Penny Kris-Etherton , evaluated and compared LDL (low density lipoprotein) susceptibility to oxidation when the test subjects, 23 men and women, ate an average American diet purposely low in flavonoids and a diet that contained about one and a quarter oz (38 grams) of cocoa powder and dark chocolate which are rich flavonoid sources.
Oxidation of LDLs is thought to play an important role in the development of atherosclerosis or hardening of the arteries. Increasing LDL's resistance to oxidation is thought to possibly delay the progression of the disease. Flavonoids, which are present in a wide variety of plants, have long been known to inhibit LDL oxidation.
The study is detailed in a paper, "Effects of cocoa powder and dark chocolate on LDL oxidative
susceptibility and prostaglandin concentration in humans" published in the November issue of the
American Journal of Clinical Nutrition.
Analysis of their blood plasma also showed that total antioxidant capacity was four per cent
greater after the cocoa and chocolate containing diet. HDL cholesterol (the "good" cholesterol)
was four per cent higher after the chocolate diet than after the average American diet.
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