Endocrinologists said that drinking coffee before breakfast actually increases the concentration of glucose. However, according to experts, this does not provoke the onset of diabetes.
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Physiologists from the UK conducted a study, during which they found that drinking coffee before breakfast increases the risk of diabetes and heart disease. Scientists' data show that if a person drinks a drink before the first meal, then 50% more glucose is formed in his blood, and this leads to illness. But endocrinologist Yuri Poteshkin noted that the editors of the MedicalXpress journal, in which the results of the experiment were posted, manipulate information, and do not provide the real results of the test, since the researchers reported only an increase in glucose.
Drinking caffeinated coffee in the morning before OGTT actually increases the amount of glucose in the blood. However, this can be explained by the fact that the tonic drink increases contrainsular hormones. At the same time, the level of insulin in the blood also increases. Thus, coffee causes short-term insulin resistance, but this is not a problem. The drink is able to normalize contrainsular hormones, so that a person feels cheerful.
There are also studies proving that coffee is harmless and can be consumed in the absence of disease, said Ekaterina Ivannikova, a member of the Russian Society of Endocrinologists. The specialist noted that diabetes mellitus can occur if a person does not sleep well or has prolonged insomnia. “If you sleep for only two hours, then the result is weight gain and increases the risk of developing type 2 diabetes ,” said the doctor. At the same time, the results of research of scientists from the UK show that one night of fragmented sleep does not have such an effect and does not reduce the body's response to glucose or insulin in the blood at breakfast.