Participants in the low (20%) carbohydrate group burned on average about 250 calories a day more than those in the high (60%) carbohydrate group, just as predicted by the carbohydrate-insulin model. Without intervention (that is, if we hadn’t adjusted the amount of food to prevent weight change), that difference would produce substantial weight loss — about 20 pounds after a few years. If a low-carbohydrate diet also curbs hunger and food intake (as other studies suggest it can), the effect could be even greater.
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http://www.latimes.com/opinion/op-ed/la-oe-ludwig-carbohydrate-insulin-study-20181114-story.htmlI'll add that 20% carbs is not even that low of a carbohydrate diet. I aim for 5% or less.