That's a great question to dig into! It's worth knowing that for most people with diabetes, blood sugar tends to peak around 30 to 90 minutes after eating. So the timing of when exercise is started after a meal can really matter.
Walking or other aerobic exercise generally helps bring blood sugar down by helping the body Show Full Answer
That's a great question to dig into! It's worth knowing that for most people with diabetes, blood sugar tends to peak around 30 to 90 minutes after eating. So the timing of when exercise is started after a meal can really matter.
Walking or other aerobic exercise generally helps bring blood sugar down by helping the body burn glucose and use insulin more efficiently. If blood sugar is still rising during post-meal exercise, it may simply mean exercise is starting while glucose levels are still climbing.
A few things that can help include:
- Waiting slightly longer after eating before exercising, to let the initial glucose spike begin to settle
- Tracking blood sugar before and after exercise to spot patterns over time
- Using a CGM (continuous glucose monitor) to get a real-time picture of what's happening during and after exercise
- Talking to a doctor about medication timing or dosage, as adjustments may help
There's no single universal timeline for when this stops happening — it varies from person to person depending on what was eaten, medication, and fitness level. A DiabetesTeam member shared that after walking 45 minutes daily for six months, their numbers improved significantly.
Definitely loop in a healthcare provider if the pattern continues, as it could signal a need to adjust a diabetes care plan.
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