If you’ve been going for a daily walk and wondering why your blood sugar still isn’t where you want it to be, you’re not alone, and you’re not doing anything wrong. Walking is genuinely good for you. But if it’s the only form of exercise you’re relying on to manage your glucose levels, there’s a good chance you’re missing a significant piece of the puzzle.
As a pharmacist, I speak to a lot of people who are doing everything they’ve been told, eating better, walking regularly, cutting back on sugar, and still feeling frustrated by their readings. The honest answer is that walking, on its own, only addresses part of the problem. Understanding why requires a quick look at what’s actually happening inside your body when blood sugar rises.
So, here’s the million-dollar question, why is blood sugar still high even when you’re doing everything right?
Your Body Has Two Main Ways of Dealing with Glucose
When you eat, glucose enters your bloodstream. Your pancreas releases insulin to help move that glucose out of the blood and into your cells particularly your muscle cells, where it’s used for energy or stored as glycogen. The problem in type 2 diabetes or prediabetes is that your cells become resistant to insulin’s signal. Glucose stays in the blood longer than it should, and levels creep up.
Exercise helps because it gives your muscles an alternative route to take up glucose, one that doesn’t rely as heavily on insulin. But here’s the thing, not all exercise uses this route in the same way, or to the same extent.
What Walking Actually Does for Blood Sugar
Let’s be clear, walking is not just a weight loss tool. It has direct, meaningful effects on blood glucose. Research published in Diabetes Care found that regular aerobic exercise, including brisk walking, improves insulin sensitivity for several hours after the activity ends. That means your cells become more responsive to insulin, so glucose is cleared from the bloodstream more effectively.
Walking also helps the liver. One of the less discussed causes of high fasting blood sugar is the liver releasing too much glucose overnight, a process called hepatic glucose output. Aerobic exercise helps regulate this, which is why regular walkers often see improvements in their morning readings over time.
Over the longer term, consistent walking reduces visceral fat, the deeper abdominal fat that sits around your organs and actively drives insulin resistance. So yes, your 45-minute daily walk is doing something. It’s genuinely contributing to your metabolic health. The issue is what it can’t do on its own.
The Missing Piece: What Resistance Training Does Differently
Muscle is the single largest site of glucose disposal in the body. The more functional muscle mass you have, the more capacity your body has to absorb and store glucose after meals.
Resistance training, whether that’s weights, resistance bands, or even bodyweight exercises like squats and pushups, builds and preserves that muscle tissue in a way that walking simply doesn’t.
A study published in the Journal of Strength and Conditioning Research found that resistance training activates GLUT-4 transporters in muscle cells, essentially the doorways that allow glucose to enter. During and after a resistance session, these transporters move to the surface of muscle cells and pull glucose in, even with relatively little insulin involved. This effect can last for up to 24 hours post exercise, which is why people often notice lower readings the morning after a resistance session.
According to research published in Diabetologia, combining resistance training with aerobic exercise produced significantly greater reductions in HbA1c, the three-month blood sugar average, compared to either type of exercise alone. That’s not a small finding. It suggests the two types of exercise are genuinely complementary, not interchangeable.
Why Your Blood Sugar May Still Be High Despite Daily Walking
If you’re walking regularly and your readings aren’t improving as much as you’d hoped, a few things could be working against you. The most common is simply low muscle mass. If your muscles are small or underused, your body has less capacity to absorb glucose after meals, regardless of how much you walk. This is particularly relevant for older adults, where muscle loss, known as sarcopenia, is a natural part of ageing and a significant driver of worsening blood sugar control.
Post meal glucose spikes are another issue walking alone won’t fully address. When you eat a carbohydrate heavy meal, your blood sugar rises quickly. If you’re not doing anything to increase the rate at which your muscles take up that glucose, levels can remain elevated for hours. Research has shown that even a short walk after meals, around 10 to 15 minutes, helps, but adding resistance training into your weekly routine has a more sustained effect on blunting those spikes overall.
Diet, sleep, stress, and medications also play a role. Chronic stress raises cortisol, which pushes glucose higher. Poor sleep impairs insulin sensitivity significantly, with studies showing that even one night of disrupted sleep can reduce it by up to 25 percent. If these factors are present alongside low physical activity variety, walking alone simply can’t compensate.
What the Evidence Based Guidelines Recommend
The American Diabetes Association and Diabetes UK both recommend a combination of aerobic and resistance exercise for people managing blood sugar. The guidance suggests at least 150 minutes of moderate aerobic activity per week, your daily walk comfortably covers this, alongside resistance training two to three times per week. The key word in those guidelines is alongside, not instead of.
This isn’t about doing more for the sake of it. It’s about making sure both metabolic systems, how efficiently your body uses insulin, and how much glucose your muscles can actually absorb, are being trained.
What to Actually Add (Without Overhauling Your Routine)
You don’t need a gym membership or an hour-long session to get the benefits of resistance training. Research published in BMC Public Health found that short, structured bodyweight sessions of 20 to 30 minutes, done two or three times a week, produced meaningful improvements in blood sugar control in people with type 2 diabetes.
A practical starting point might look like this: keep your daily walk, but three times a week, add a 20-to-25-minute session of bodyweight exercises, squats, lunges, wall push-ups, step-ups, or seated leg raises if mobility is limited. If you have resistance bands, even better. Start with what feels manageable and build gradually.
Timing matters too. Exercising after meals, particularly after lunch or dinner, is one of the most effective ways to use physical activity for glucose control. A post meal walk is helpful, but pairing it with resistance work on those days takes the effect considerably further.
Putting It Together
Think of it this way: walking improves how well your body responds to insulin. Resistance training increases how much glucose your body can store and remove. You genuinely need both systems working together to see the kind of blood sugar control that makes a real difference to your readings, your energy, and your long-term health.
Your daily walk is not wasted effort not even close. But if you want to move the needle on your glucose levels more consistently, adding resistance training two or three times a week is the most evidence backed change you can make right now. It doesn’t have to be complicated or intense. It just has to happen.
Small change, big metabolic impact, especially when muscle joins the equation
FAQs
Q1. Does walking lower blood sugar at all?
Yes, it does. Walking improves insulin sensitivity and helps your muscles take up glucose more effectively. It also helps regulate how much glucose your liver releases, which can improve fasting readings over time. The issue isn’t that walking doesn’t work, it’s that walking alone doesn’t address all the mechanisms driving high blood sugar, particularly if muscle mass is low.
Q2. How quickly does resistance training affect blood sugar?
The effects can be surprisingly fast. GLUT-4 transporter activity increases during and after a resistance session, and this glucose-clearing effect can last for up to 24 hours. Some people notice lower readings the morning after their first few sessions. Longer term improvements in HbA1c typically become measurable after six to eight weeks of consistent training.
Q3. Do I need a gym to do resistance training?
Not at all. Bodyweight exercises done at home, squats, lunges, push-ups, step ups, and seated leg raises, are well supported by research for improving blood sugar control. Resistance bands are a low-cost addition that can increase the challenge without any equipment. What matters most is consistency, not the setting.
Q4. How many times a week should I do resistance training for blood sugar control?
Both the American Diabetes Association and Diabetes UK recommend two to three sessions per week, on non-consecutive days where possible. Sessions of 20 to 30 minutes are sufficient, particularly when you’re already meeting the aerobic activity guidelines through walking.
Q5. What’s the best time to exercise for blood sugar control?
Exercising after meals, particularly after lunch or dinner, is one of the most effective strategies for reducing post meal glucose spikes. Even a 10-to-15-minute walk after eating helps, but combining that with resistance training sessions on those days produces a more sustained effect on overall glucose levels.
Q6. Can I do both walking and resistance training on the same day?
Yes, and research suggests combining both in a single session, aerobic first, then resistance, can be particularly effective. That said, splitting them across different days also works well. The priority is making sure both types of exercise feature regularly in your week, rather than worrying too much about the exact timing.
Q7. Is this advice suitable if I’m on diabetes medication or insulin?
Exercise affects how your body responds to both insulin and certain medications, including sulphonylureas. If you’re on insulin or glucose lowering medication, it’s important to speak to your healthcare provider, diabetes nurse, or pharmacist before significantly changing your exercise routine. Blood sugar can drop during or after exercise, and your medication or insulin doses may need reviewing.
Call to Action
Take Control of Your Blood Sugar, Starting This Week
If you’ve been relying on walking alone and not seeing the results you hoped for, now you know why, and more importantly, what to do about it. Adding resistance training two to three times a week alongside your daily walk is one of the most evidence backed steps you can take to improve your blood sugar, protect your muscle mass, and reduce your long-term risk of complications.
You don’t need a gym. You don’t need an hour a day. You just need to start.
For personalized advice on exercise and blood sugar management, speak to your healthcare provider, diabetes nurse, or a pharmacist. If you found this article helpful, explore more evidence-based health guidance at PharmaHealths.
Medical Disclaimer
This article is intended for general informational purposes only and does not constitute medical advice. The content on PharmaHealths is written to support, not replace, the relationship between you and your healthcare professional. If you have diabetes, prediabetes, or any other medical condition, always consult your healthcare provider, diabetes nurse, or pharmacist before making changes to your exercise routine, diet, or medication. Individual health needs vary, and what works for one person may not be appropriate for another.
References
• Colberg S.R. et al. (2016). Physical activity and diabetes. Diabetes Care, on aerobic exercise improving insulin sensitivity and post-exercise glucose uptake
• Bird S.R. & Hawley J.A. (2017). Update on the effects of physical activity on insulin sensitivity. BMJ Open Sport & Exercise Medicine, on GLUT-4 transporter activation and resistance training
• Sigal R.J. et al. (2007). Effects of aerobic training, resistance training, or both on glycaemic control in type 2 diabetes. Annals of Internal Medicine, on combined training producing greater HbA1c reductions
• Church T.S. et al. (2010). Effects of aerobic and resistance training on HbA1c levels in patients with type 2 diabetes. JAMA, on exercise combination and metabolic outcomes
• Dunstan D.W. et al. (2002). High-intensity resistance training improves glycaemic control in older patients with type 2 diabetes. Diabetes Care, on resistance training and glucose disposal in older adults
• American Diabetes Association Standards of Medical Care in Diabetes (2024), on recommended exercise guidelines for people with type 2 diabetes
• Diabetes UK, Physical activity and diabetes guidelines, on aerobic and resistance training recommendations for UK patients
• Dempsey P.C. et al. (2016). Interrupting prolonged sitting with brief bouts of light walking or simple resistance activities reduces resting blood pressure and plasma glucose. Hypertension, on post meal movement and glucose spikes
• Slentz C.A. et al. (2011). Inactivity, exercise training and detraining, and plasma lipoproteins. BMC Public Health, on short structured bodyweight sessions and blood sugar outcomes