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Is Exercise Helping or Hurting Your Blood Sugar? Here’s What You Need to Know

by IBD Medical on September 03, 2025

When you are managing Diabetes, you’re probably told time and again that exercise is “good for you.” But if you’ve ever checked your blood sugar after a walk or workout and found it unexpectedly high or low, you might wonder: Is exercise actually helping or hurting my blood sugar?

You’re not alone, this is one of the most common questions in the diabetes community! Let’s break it down so you can move with confidence.

HOW EXERCISE CAN HELP YOUR BLOOD SUGAR
  • Lowers blood glucose: Muscles use glucose for energy during activity, which can help bring your levels down.
  • Improves insulin sensitivity: Over time, regular movement helps your body respond better to insulin—whether you make it naturally or inject it.
  • Supports weight management: Staying active helps manage weight, which can make blood sugar easier to control.
  • Boosts mood and energy: Exercise can help reduce stress, which also has a positive effect on blood sugar.
Tip: Even short, low-impact activities like walking, stretching, or gentle yoga can make a difference!


WHEN EXERCISE MIGHT HURT YOUR BLOOD SUGAR
  • Hypoglycaemia (lows): Some types of exercise, especially long or intense sessions, can cause your blood sugar to drop too far.
  • Hyperglycaemia (highs): If your blood sugar is already high before starting, certain exercises (like weightlifting or sprints) might push it even higher, at least for a short while.
  • Stress response: High-intensity workouts can temporarily raise blood sugar due to stress hormones, especially if you’re not used to them.

WHAT TO WATCH OUT FOR:
  • Feeling shaky, dizzy, or unusually tired during or after exercise
  • Unexpected high readings after a workout
  • Needing more snacks or insulin adjustments around exercise

HOW TO MAKE EXERCISE WORK FOR YOU
  • Check your blood sugar: Before, during, and after exercise, especially when trying something new.
  • Start slow: Gentle, low-impact activities are a great place to begin.
  • Keep glucose handy: Always have a hypo treatment (like Glucochews) nearby, just in case.
  • Listen to your body: If you feel “off,” pause and check your levels.
  • Talk to your healthcare team: They can help you adjust your routine or medication if needed.

QUICK RECAP
  • Exercise usually helps blood sugar, but it’s not always predictable.
  • Monitor, adjust, and repeat—your best routine is the one that fits your body and your life.
  • You’ve got this! Every step counts, and your Glucology community is here to cheer you on.

 

Real Talk: Everyone’s Body is Different
What works for one person may not work for another. Some people see steady numbers with regular walks, while others need to tweak their routine to avoid highs or lows. That’s totally normal!
Remember: The goal isn’t perfect numbers every time, it’s about finding what helps you feel your best, both physically and emotionally.
Important : Before starting any new exercise routine or making changes to your current one, always check with your healthcare professional. They can help you find the safest approach for your unique needs.

Explore our blog for more tips and resources on diabetes management.

Disclaimer: This blog is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your doctor or a qualified health provider with any questions about your condition. If you have a medical emergency, call 911 (US) or 000 (Australia) immediately, or visit your nearest emergency care center.

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 Glucology is dedicated to transforming diabetes management with innovative and effective solutions. Our extensive range of products, including Insulin Pumps BeltsFast Acting Glucose, Insulin Cooling Pouch and CGM Patches, is designed to support individuals in managing their diabetes with ease and confidence. Trusted by over 350,000 people in 23 countries, Glucology collaborates with major diabetes organisations to provide reliable and high-quality diabetes care.

Discover more about our products and solutions to enhance your diabetes management journey. Join our community and experience the difference with Glucology today!

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