The study published in the Journal of Dairy Science in 2018, revealed that consuming milk at breakfast lowers blood glucose throughout the day.

The researchers carried out the study to examine the effects of drinking high-protein milk at breakfast on blood glucose levels and satiety after having breakfast and then lunch.

They observed that milk consumed with breakfast cereal reduced the postprandial blood glucose concentration as compared with water. On the other hand, high dairy protein concentration reduced postprandial blood glucose concentration compared with normal dairy protein concentration. The high protein meal also reduced the appetite after the second meal as compared with the low-protein one.

In the double study, the team of researchers carefully examined the effects of increasing protein concentration and increasing the proportion of whey protein in milk when consumed with a bowl of high-carb breakfast cereal on blood glucose, satiety level, and eating pattern throughout the day.

They observed that the digestion of whey and casein proteins, which are naturally present in milk, releases gastric hormones that delay the process of digestion. This automatically increases satiety.