Consumption of one egg every day seems to associate with a blood metabolite profile that is related to a lower risk of type 2 diabetes, a new study conducted in the University of Eastern Finland shows. The findings were published in Molecular Nutrition and Food Research.
Eggs remain one of the most controversial food items. High intake of eggs has traditionally been discouraged, mainly due to their high cholesterol content. However, eggs are also a rich source of many bioactive compounds that can have beneficial effects on health. This means that the health effects of consuming eggs are difficult to determine based solely on their cholesterol content.
The investigators have previously shown that eating roughly one egg per day was associated with a lower risk of developing type 2 diabetes among middle-aged men participating in the Kuopio Ischaemic Heart Disease Risk Factor Study in eastern Finland.
“The purpose of the current study was to explore potential compounds that could explain this association using non-targeted metabolomics, a technique that enables a broad profiling of chemicals in a sample,” says early stage researcher and lead author of the study Stefania Noerman from the University of Eastern Finland.
The study found that the blood samples of men who ate more eggs included certain lipid molecules that positively correlated with the blood profile of men who remained free of type 2 diabetes. In addition, the researchers identified several biochemical compounds in blood that predicted a higher risk of developing type 2 diabetes, including the amino acid tyrosine.
The study suggests some plausible mechanisms which could at least partly explain the inverse association between egg intake and the previously observed lower risk of developing type 2 diabetes.
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