by bonny damocles
(Midland, MI, U.S.A.)
Question: For more than 20 years now, I have been using exercise as my only type 2 diabetes medication.
I do not know of any natural cures for my diabetes. I will always be a diabetic. But by being D.U.M.B. (disciplined, upbeat, motivated, bold), I enjoy life like I have no diabetes.
I was featured as an exercise case study in “The Science of Exercise” by Erika Gebel. Since diagnosis, I have eaten mostly fresh fruits, vegetables, nuts, beans, roots, seeds, grains and seaweeds, with occasional lean meat, chicken, fish and seafood. I avoid sugary, salty, oily, processed and artificially prepared foods.
For more than 20 years, I have had high after-meal readings three times daily after high-carbohydrate meals but no known diabetes complications. I exercise for about 90 minutes daily in four sessions—before each meal and before bed. Could exercise explain why I have remained well, and can exercise alone prevent type 2 diabetes from progressing?
A personal email address from the original submission has been removed for privacy.
Quick Answer
Your long-term commitment to physical activity is impressive, and exercise can substantially improve insulin sensitivity, after-meal glucose, cardiovascular fitness and quality of life. However, one person’s experience cannot prove that exercise alone is safe or sufficient for everyone with type 2 diabetes.
Repeated high fasting or after-meal readings still matter even when you feel well. The absence of symptoms does not confirm the absence of eye, kidney, nerve or cardiovascular disease. A1C testing and regular complication screening remain necessary. Some people can manage type 2 diabetes without medication or enter remission, but medication is appropriate when lifestyle measures do not keep glucose and cardiovascular or kidney risks within individualized goals.
Answer by: Dr. Albana Greca Sejdini, MD, MMedSc
Hi Bonny,
Your discipline and consistency deserve recognition. Exercise is one of the most effective components of type 2 diabetes care. Working muscles can take up more glucose, and regular activity improves insulin sensitivity. Current guidance recommends at least 150 minutes of moderate-to-vigorous aerobic activity each week for most adults with diabetes, spread across at least three days, together with resistance exercise when appropriate.
For some people—particularly those with milder hyperglycemia, shorter diabetes duration, substantial lifestyle change and preserved insulin production—nutrition, activity and weight management may keep A1C within the agreed target without glucose-lowering medicine. This should be confirmed with laboratory results, not assumed from feeling healthy or from exercising frequently.
Exercise should not be described as a universal replacement for medication. Type 2 diabetes is heterogeneous: insulin resistance and loss of pancreatic beta-cell function vary greatly among individuals. Some people remain stable for years, some achieve remission and others need medication early. Needing medicine is not failure; modern treatment may also protect the heart and kidneys beyond its glucose-lowering effect.
Yes. Frequent high readings after meals may increase A1C and long-term vascular risk. For many nonpregnant adults with diabetes, a common target is below 180 mg/dL about 1–2 hours after the start of a meal, although personal goals vary. Review repeated elevations with a clinician rather than assuming exercise cancels their effect. See our guide to blood sugar levels after eating.
Diabetic retinopathy and neuropathy can be present without obvious symptoms. Long-term follow-up should include A1C, blood pressure, cholesterol, kidney function and urine albumin, dilated eye examinations and foot/nerve checks. Read more about diabetes complications and screening.
Exercise alone does not automatically establish remission. The international consensus definition is an A1C below 6.5% for at least three months without glucose-lowering medication. Even in remission, A1C should be checked at least yearly and routine screening for complications should continue because glucose can rise again and prior exposure may still affect risk.
Exercise safety
Ninety minutes daily may be appropriate for a well-conditioned person, but it is not a required prescription for everyone. Exercise plans should account for age, heart disease, retinopathy, neuropathy, foot problems, kidney disease, medications and hypoglycemia risk. Very intense exercise can sometimes raise glucose temporarily. Seek medical guidance before continuing vigorous activity if glucose is very high, ketones are present, or chest pain, faintness, unusual breathlessness or foot injury occurs.
Bonny later argued that his decades without known complications prove that type 2 diabetes is not progressive and can be controlled easily by exercise alone. His experience is valuable as a personal account, but it cannot establish a treatment rule for other people. “Progressive” does not mean everyone worsens at the same speed or must eventually use insulin; it means the underlying biology can change over time. Objective monitoring is the only reliable way to know whether the current plan remains safe.
Answered by: Dr. Albana Greca Sejdini, MD, MMedSc
Medically reviewed by: Dr. Ruden Cakoni, MD, Endocrinologist
Last reviewed: July 2026
Medical disclaimer: Educational only—not personal medical advice. Diagnosis and treatment should come from a qualified clinician who knows the patient’s medical history.
Comments for Type 2 diabetic since July 1991, diagnosed based on a fasting sugar reading of 468 mg/dl
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
Click here to add your own Comment / Follow up Ask the Doctor now? Simply click here to return to Diabetes Herbs and Supplements. |