It's Not Just Your Diet. It's Your Muscle: How Strength Training Helps Blood Sugar
When people think about blood sugar, they think about food. Cut the sugar, swap the rice, skip dessert. That matters. But it's only half the story.
The other half is where that sugar goes after you eat. And your muscle does far more of that work than most of us realise.
Quick answer: Skeletal muscle is your body's biggest storage tank for blood sugar. In lab studies, around 80% of the glucose cleared with insulin's help goes into muscle. More muscle, and using it regularly, gives that sugar somewhere to go. Strength training two or more days a week, a short walk after meals, eating carbs with protein and fibre, and good sleep all help keep blood sugar in check.
What is blood sugar?
Blood sugar is the glucose in your blood, and it comes mostly from the carbohydrates you eat.
After a meal, the hormone insulin moves that glucose out of your blood and into your cells, to be used for energy or stored for later. Your muscles take the biggest share. When there's less room to store it, blood sugar stays high for longer.
This matters in Singapore. The Ministry of Health has estimated that 1 in 3 Singaporeans is at risk of developing diabetes in their lifetime.
The myth: "blood sugar is all about what you eat"
"Blood sugar is all about what you eat."
Food is only half the story. What you eat decides how much sugar enters your blood. Your muscle decides how much of it has somewhere to go.
What raises blood sugar fastest? It's not just sweets
You don't have to give them up. Pair them with protein and vegetables, or swap to brown rice and wholegrains, to slow the rise.
The finding: your muscle is the storage tank
of the glucose your body clears with insulin's help goes into your skeletal muscle, according to classic insulin clamp studies.
DeFronzo et al., insulin clamp studies
Muscle is your body's biggest storage tank for blood sugar. The more you have, and the more you use it, the more room there is.
What it means: more muscle, more storage
- Working muscle pulls glucose in. When muscles contract, they take up glucose even without insulin's help. That's why moving after a meal makes such a difference.
- Strength training improves insulin sensitivity. Regular strength work helps your body respond better to insulin, so less of it is needed to clear the same amount of sugar.
- A little goes a long way. A 2022 review in the British Journal of Sports Medicine linked up to 60 minutes a week of muscle-strengthening activity to a lower risk of type 2 diabetes.
The fix: five habits that help
Small, repeatable moves that give your blood sugar somewhere to go.
Managing diabetes or on medication? Speak to your doctor before changing your routine.
Know your numbers: how we track it at SCA
How big is your glucose storage tank? You can't tell from the mirror. Our assessment measures it.
Evolt 360 scan: muscle mass, body fat and how they change over time.
VALD ForceDecks and Dynamo: strength, power and left-right differences.
Your programme is shaped by your results, then re-tested to track progress.
Eat well. Then give that sugar somewhere to go.
Curious what you're working with? Message us and we'll do your body composition scan on the house.
Frequently asked questions
Does strength training lower blood sugar?
Yes. Working muscle takes up glucose from the blood, and regular strength training improves insulin sensitivity, so your body clears sugar more effectively over time.
How much strength training do I need for better blood sugar?
The WHO recommends muscle-strengthening activity on two or more days a week. Research has linked up to 60 minutes a week of strength work to a lower risk of type 2 diabetes.
Does walking after meals help blood sugar?
Yes. A short 10 to 15 minute walk after eating helps your muscles use glucose, which can soften the rise in blood sugar after a meal.
Which foods raise blood sugar the fastest?
Sweet drinks, white rice and noodles, white bread and pastries, and kuih and desserts. Pairing them with protein and vegetables, or choosing wholegrains, slows the rise.
How can I measure my muscle mass in Singapore?
Strength Clinic Academy measures muscle mass and body fat with an Evolt 360 body composition scan, alongside VALD strength testing, at OUE Downtown, 6A Shenton Way, #03-06.
Build your storage tank
Strength training built on your data, with physiotherapists, coaches and nutritionists working together in one space at OUE Downtown.
WhatsApp +65 8878 5539 | Personal training in the CBD
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Sources
- DeFronzo RA, et al. The effect of insulin on the disposal of intravenous glucose: results from indirect calorimetry and hepatic and femoral venous catheterization. Diabetes. 1981;30(12):1000-1007.
- Momma H, et al. Muscle-strengthening activities are associated with lower risk and mortality in major non-communicable diseases: a systematic review and meta-analysis of cohort studies. Br J Sports Med. 2022;56(13):755-763.
- Donga E, et al. A single night of partial sleep deprivation induces insulin resistance in multiple metabolic pathways in healthy subjects. J Clin Endocrinol Metab. 2010;95(6):2963-2968.
- Reynolds AN, et al. Advice to walk after meals is more effective for lowering postprandial glycaemia in type 2 diabetes mellitus than advice that does not specify timing. Diabetologia. 2016;59(12):2572-2578.
- World Health Organization. WHO guidelines on physical activity and sedentary behaviour. 2020.
- Ministry of Health Singapore. War on Diabetes.