Garlic can be consumed by diabetics. The allicin contained in garlic has a certain bactericidal effect, and garlic is also known as a natural antibiotic. For people with diabetes, consuming garlic helps to improve the immunity of the body, which is useful for blood sugar control and prevention of complications of diabetes. Garlic can improve insulin sensitivity, which can control and regulate blood sugar. Garlic also has a certain effect on weight loss, so long-term consumption of garlic for diabetic patients helps in the control of blood sugar as well as weight. Also, garlic has some preventive effect on cardiomyopathy, so patients with diabetes combined with cardiomyopathy can consume garlic for some preventive effect.