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Moderate-protein diet may beat high-carb diet
http://news.yahoo.com/s/nm/20090318/...derate_protein
The tested diet isn't even slightly low carb. It just trades 15% protein by calorie for 30% protein by calorie. As usual I wish they would actually use a known diet plan in their studies. Bits that I found interesting: The findings, reported in the Journal of Nutrition, suggest that trading in some carbs for protein may do dieters good. Gradually the low fat steam roller is losing its force. However, the moderate-protein former group lost more fat mass, and had greater improvements in both HDL and triglyceride levels. Saying low fat plans have problems. I generally point out that some percentage of the population does well on low fat so I wonder how that jives with this study that says lot fat is problematic. I bet they didn't select low fat participants based on whether they get hungry on low fat. The extra protein at each meal helps dieters preserve "metabolically active" muscle mass, explained lead researcher Dr. Donald K. Layman, of the University of Illinois in Urbana. Nothing new to the concept that protein is beneficial. At the same time, he told Reuters Health, the diet's lower carbohydrate content means lower levels of the blood-sugar-regulating hormone insulin. Even at 30% calories from carb compared to 40% calories from carb? Okay. The greater improvement in triglycerides, he said, is largely the result of cutting carbs, which can raise triglyceride levels. There has been recent discussion that any system that triggers fat loss lowers trigylcerides. For example, he said, the concept of eating "lots of small meals" throughout the day works when the diet is high-carb, low-fat because people are hungry more often -- but it's a bad idea with a moderate-protein diet. Okay, there's the comment that low fat folks get more hungry and need to use special strategies to deal with that fact. Not a study that tells anything new. |
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