People with diabetes can take vitamin C tablets. There are vitamin C tablets for health care and there are also vitamin C tablets for medical use. Vitamin C tablets for health care, which contain a certain amount of glucose, are not recommended for people with diabetes. If a patient with diabetes is deficient in vitamin C, he or she can take medical vitamin C tablets. Vitamin C is an indispensable vitamin in the human body, which can replenish the body’s energy, treat colds, increase its resistance, antioxidant, prevent bleeding and assist in the treatment of iron deficiency anemia. Diabetes is a chronic disease, a disease caused by defective or resistant insulin secretion. Proper supplementation of vitamin C during the course of the disease can increase resistance and prevent the occurrence of diseases such as colds. It is recommended to use it under the guidance of a medical professional, but overdose of vitamin C is not allowed.