• Each Junk Food Meal Damages Arteries

      From ScienceDaily

      A single junk food meal -- composed mainly of saturated fat -- is detrimental to the health of the arteries, while no damage occurs after consuming a Mediterranean meal rich in good fats such as mono-and polyunsaturated fatty acids, according to researchers at the University of Montreal-affiliated ÉPIC Center of the Montreal Heart Institute. The Mediterranean meal may even have a positive effect on the arteries.

      The findings are being presented at the Canadian Cardiovascular Congress, which runs in Toronto until Wednesday, by the head of the study, Dr. Anil Nigam, Director of Research at the Cardiovascular Prevention and Rehabilitation Centre (ÉPIC) and associate professor at the university's Faculty of Medicine.

      Bad fat vs. good fat

      Dr. Nigam undertook the study to compare the effects of junk food and typical Mediterranean meal on the vascular endothelium: the inner lining of the blood vessels. By measuring endothelial function, it is possible to determine how easily the arteries will dilate after a temporary, five-minute occlusion, following the consumption of the two types of meals. This is a very interesting analysis for researchers to perform as endothelial function is closely linked to the long-term risk of developing coronary artery disease.

      The study also revealed that participants with higher blood triglyceride levels seemed to benefit more from the healthy meals. Their arteries responded better to the Mediterranean meal compared to people with low triglyceride levels. "We believe that a Mediterranean-type diet may be particularly beneficial for individuals with high triglyceride levels, such as patients with metabolic syndrome, precisely because it could help keep arteries healthy," Dr. Nigam said.

      Mediterranean meal vs. junk food meal

      The results were established in 28 non-smoking men, who ate the Mediterranean-type meal first and then the junk food-type meal one week later. Before beginning, the men underwent an ultrasound of the antecubital artery at the elbow crease after fasting for 12-hours to assess their baseline endothelial function. The researchers then tested the effects of each meal. The first was composed of salmon, almonds, and vegetables cooked in olive oil, of which 51% of total calories came from fat (mostly monounsaturated fatty acids and polyunsaturated fats.) The second meal consisted of a sandwich made of a sausage, an egg, and a slice of cheese, and three hash browns, for a total of 58% of total calories from fat: extremely rich in saturated fatty acids and containing no omega-3s. At two hours and four hours after each meal, participants underwent further ultrasounds to assess how the food had impacted their endothelial function.

      Dr. Nigam and his team found that after eating the junk food meal, the arteries of the study participants dilated 24% less than they did when in the fasting state. In contrast, the arteries were found to dilate normally and maintain good blood flow after the Mediterranean-type meal.

      "These results will positively alter how we eat on a daily basis. Poor endothelial function is one of the most significant precursors of atherosclerosis. It is now something to think about at every meal," Dr. Nigam said.

      Story Source:
      The above story is reprinted from materials provided by Universite de Montreal, via Newswise.
      Note: Materials may be edited for content and length. For further information, please contact the source cited above.

      Journal Reference:
      J. Cantin, S. Lacroix, J. Tardif, A. Nigam. 390 Does the Adherence to a Mediterranean Diet Influence Baseline and Postprandial Endothelial Function? Canadian Journal of Cardiology, 2012; 28 (5): S245 DOI: 10.1016/j.cjca.2012.07.367

      Source: http://www.sciencedaily.com/releases...Weight+Loss%29
      Comments 4 Comments
      1. AFpump's Avatar
        AFpump -
        After reading this, I figure to start on a better way of eating, just start using olive oil the rest will follow.
      1. Torobestia's Avatar
        Torobestia -
        Can't read the paper from home, but if this article is even remotely closely reporting the findings of the paper, it would be an interesting finding, especially "revealed that participants with higher blood triglyceride levels seemed to benefit more from the healthy meals. Their arteries responded better to the Mediterranean meal compared to people with low triglyceride levels." Triglyceride levels are almost always an indicator of not fat consumption but of high calorie diets. Taken together, this would suggest that under any sort of high calorie environment, saturated fats become dangerous to heart health, whereas if you're under it you are ok (as a caveat, some saturated fats like stearic acid are crucial to heart health, and other saturated fats are important for proper hormone homeostasis).

        Another thing this would imply is that you should NOT bulk using keto if your health is important to you. Otherwise, you risk incurring heart health problems over the long run unless you regulate your saturated fat consumption as well.

        Take home message: everything in moderation.
      1. hardbody241's Avatar
        hardbody241 -
        Very interesting. It opens my eyes on how to prepare meals for my children.
      1. ka0tik's Avatar
        ka0tik -
        This is retarded. They are comparing salmon to sausage and hash browns to vegetables
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