Diabetic patients can generally drink barley tea, but should be moderate. Barley tea is barley processed into tea drinks, if it is not added sugar and other ingredients, sugar and calories are not very high, drinking barley tea generally does not lead to a rapid rise in blood sugar, causing huge fluctuations in blood sugar, diabetic patients in the case of good blood sugar control can be consumed in moderation. Barley tea has a high nutritional value, rich in B vitamins, amino acids, digestive enzymes, dietary fiber, a variety of minerals, etc., these nutrients are beneficial to the human body, can be appropriate to drink, conducive to good health. Barley tea should not drink too much, although the sugar content is not high, too much drinking may lead to elevated blood sugar; too much drinking will also increase the burden on the kidneys, especially in patients with diabetic nephropathy. Diabetic patients should choose foods that are low in sugar and calories and maintain a healthy lifestyle.