Can strength training replace my diabetes medication?

While strength training can significantly improve blood sugar control, you should never stop or change medication without consulting your GP or diabetes team. Some people find they need less medication over time as their fitness improves, but this should always be monitored and adjusted by your healthcare team based on your blood sugar levels.

What if my blood sugar drops too low during exercise?

Always keep fast-acting glucose nearby - glucose tablets, juice, or regular fizzy drink work well. If you feel symptoms of low blood sugar (shakiness, sweating, confusion), stop exercising immediately and take 15-20g of fast-acting glucose. Wait 15 minutes, check your blood sugar, and don't resume until you've recovered. Talk to your diabetes team about adjusting medication timing if this happens regularly.

Should I strength train if my blood sugar is high?

If your blood sugar is above 13.9 mmol/L and you use insulin, check for ketones before exercising. If ketones are present, don't exercise as it can make things worse. For Type 2 diabetes not treated with insulin, moderate exercise can actually help bring high blood sugar down, but avoid intense exercise until levels normalise.

How soon will I see improvements in my blood sugar control?

Many people notice improvements in blood sugar readings within the first few weeks of regular strength training. However, changes in HbA1c (your long-term blood sugar marker) take 2-3 months to show up in blood tests. Be patient, stay consistent, and track your progress. The benefits compound over time.

Adult with diabetes performing a safe strength training exercise with instructor guidance

Health Conditions

Diabetes and Strength Training: How Exercise Helps Manage Blood Sugar After 50

By FiftyPlus Team | 29 January 2026

Chat about exercising with diabetes

Reviewed by: Dr Michael Brown Consultant Rheumatologist, FRCP

Sources

Physical activity and diabetes - diabetes.org.uk
Type 2 diabetes - exercise - nhs.uk
Diabetes and your heart - bhf.org.uk
Physical activity/exercise and diabetes position statement - diabetesjournals.org

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Sources