Type 2 diabetes is a condition that makes it difficult for the body to use insulin effectively, leading to high blood sugar levels. Besides medication and diet, many people turn to supplements in the hope of improving their health. However, some vitamins or supplements that seem harmless can affect blood sugar control.
According to Dr. Sarika N Holla, a diabetes specialist at Kinder Hospital (Bangalore, India), people with diabetes should not arbitrarily use supplements without medical guidance. Some ingredients may interact with medication or cause blood sugar levels to fluctuate uncontrollably.
Vitamin E is one of the supplements that need caution. This is a common antioxidant, often advertised as beneficial for skin and immunity. However, taking high doses of vitamin E can increase the risk of bleeding and affect blood thinners that many diabetic patients are using. Supplementing too much vitamin E can make insulin resistance worse.
Vitamin B3 (niacin) can also cause problems for people with type 2 diabetes. Although niacin is often used to support metabolism and control cholesterol, this substance can increase blood sugar levels and reduce insulin sensitivity, making it harder for the body to control glucose.
Chromium is a mineral that is often advertised to help stabilize blood sugar. However, according to Dr. Holla, excessive addition of chromium can cause stomach pain, affect kidney function and cause blood sugar fluctuations. Although the body needs a small amount of chromium, self-supplementing high doses can be more harmful than beneficial.
In addition to vitamins and minerals, some types of protein powder are also not suitable for people with diabetes. Many products contain added sugar, maltodextrin or carbohydrates with a high glycemic index, easily increasing glucose levels in the blood. Patients should carefully check the product ingredients and prioritize natural protein sources such as eggs, beans, nuts or lean meat.
Alpha-lipoic acid (ALA) is a substance commonly used to support mental health in diabetic patients. However, ALA can lower blood sugar too quickly or interact with diabetes medication, leading to a dangerous risk of hypoglycemia. This substance is also not suitable for people with thyroid problems if used uncontrollably.
According to Dr. Holla, instead of relying on supplements, people with diabetes should prioritize safer support measures such as maintaining a high-fiber diet, regular exercise, getting enough sleep, drinking enough water and controlling stress.
Experts note that supplements should only be used when prescribed or the shortage is clearly diagnosed. People with type 2 diabetes should consult a doctor before using any supplements to avoid affecting blood sugar control and treatment effectiveness.
