Journal
PROCEEDINGS OF THE NUTRITION SOCIETY
Volume 75, Issue 3, Pages 259-264Publisher
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0029665116000215
Keywords
Eggs; Dietary; Cholesterol; CVD; Diabetes
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Eggs have one of the lowest energy to nutrient density ratios of any food, and contain a quality of protein that is superior to beef steak and similar to dairy. From a nutritional perspective, this must qualify eggs as good'. The greater burden of proof has been to establish that eggs are not bad', by increasing awareness of the difference between dietary and blood cholesterol, and accumulating sufficient evidence to exonerate eggs from their associations with CVD and diabetes. After 60 years of research, a general consensus has now been reached that dietary cholesterol, chiefly from eggs, exerts a relatively small effect on serum LDL-cholesterol and CVD risk, in comparison with other diet and lifestyle factors. While dietary guidelines have been revised worldwide to reflect this view, associations between egg intake and the incidence of diabetes, and increased CVD risk in diabetes, prevail. These associations may be explained, in part, by residual confounding produced by other dietary components. The strength of evidence that links egg intake to increased CVD risk in diabetes is also complicated by variation in the response of serum LDL-cholesterol to eggs and dietary cholesterol in types 1 and 2 diabetes. On balance, the answer to the question as to whether eggs are bad', is probably no', but we do need to gain a better understanding of the effects of dietary cholesterol and its association with CVD risk in diabetes.
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