This week’s notice feels like a retrograde stage. I thought problems about nutritional cholesterol were being powering us, but this week’s paper has tried using to resurrect them. The introduction to the paper famous that the Scientific Report of the 2015 Dietary Recommendations Advisory Committee said that “cholesterol consumption want not be constrained because there is only a weak connection between cholesterol ingestion and serum [blood] cholesterol concentrations” and that “egg intake ought to be deemed aspect of a healthier diet plan” (Ref 1). Nevertheless the Scientific Report of the 2020 Nutritional Guidelines Advisory Committee cautioned “it seems prudent to advise reduce consumption of foods substantial in dietary cholesterol”, when calling for added research” (Ref 2). The authors may well have taken the simply call for additional investigation as an invitation.
Dietary cholesterol is only observed in foods of animal origin – meat, fish, eggs and dairy items. An attack on dietary cholesterol is concomitantly an attack on animal food items. Ancel Keys was the very first researcher to systematically examine whether cholesterol in foods had an impression on cholesterol in the blood and he concluded unequivocally that it did not. His most definitive quotation on the subject was “There’s no connection in any way concerning cholesterol in foods and cholesterol in the blood. None. And we’ve recognised that all alongside. Cholesterol in the diet does not make any difference at all except you occur to be a chicken or a rabbit” (Ref 3).
This week’s paper was identified as “Associations of dietary cholesterol, serum cholesterol, and egg usage with overall and cause-unique mortality: Systematic critique and up-to-date meta-analysis” (Ref 4). The direct creator was Zhao, from China.