
How to manage blood sugar with exercise
These days, more and more of us have to worry about our blood sugar.
Some 38 million Americans have diabetes and more than two times that number have pre-diabetes. Many millions more have some form of insulin resistance, which can make you tired, irritable and even dizzy. And all of these conditions become more common as we age.
The good news is that exercise can help. It's at least as important as your diet for preventing and treating insulin resistance and diabetes. It can also help you lose weight, which is often the most important step in levelling out blood sugar.
Exercise has several unique ways to help your body process glucose, said Dr Donald Hensrud, a specialist in preventive medicine and nutrition; and medical editor of 'The Mayo Clinic Diet.' Although any exercise is good for you, the type of movement you choose and when you do it can play a big role in how much it helps.
Here are some things you should think about when planning workouts, according to experts.
The causes of diabetes are complex. Family history, genetics, weight and diet certainly play a role. But it's clear that exercise can dramatically lower your blood glucose, regardless of your diagnosis and improve how well your body uses insulin.
In fact, research has shown that exercise is generally more effective at preventing diabetes than medication is (though it is important to use all types of treatment). During exercise, your muscle cells can more easily use the glucose in your blood. This lowers blood sugar directly and can also reduce the fat around your organs, an important risk factor for diabetes and insulin resistance, said Dr Gerald I Shulman, a professor of medicine and physiology at the Yale School of Medicine.
In particular, studies show that regular high-intensity interval training or moderate continuous exercise can make a difference, reversing pre-diabetes in almost 40% of the participants — although it could take months or even years for many people to see long-lasting changes.
Any movement is better than none and simply going for a walk can have benefits. But according to research, the two most effective ways to lower your blood sugar through exercise are high-intensity workouts and strength training.
A recent study found that strength training was significantly more effective for controlling blood sugar levels than aerobic exercise for people with Type 2 diabetes and this likely holds true for other people worried about their blood sugar, Shulman said.
Also, both aerobic exercise and strength training create more mitochondria, which can help fight Type 2 diabetes, but weightlifting appears to be slightly more effective than aerobic exercise, assuming you are pushing yourself, Shulman said.
Strength training is especially important for older people, since insulin resistance and Type 2 diabetes accelerate the normal loss of muscle and strength that comes with age, particularly for women. While walking is good exercise for the heart, it generally won't build much muscle, said Michael Joseph Gross, author of 'Stronger: The Untold Story of Muscles in Our Lives.' The way you strength-train is also important, he added. To be most effective, the weights should feel heavy. A systematic review of the research found that lifting challenging weights helped lower blood sugar more effectively than low-intensity strength training.
Consider alternating your strength training session with high-intensity interval training, which has been shown to be especially effective in managing blood sugar for people with pre-diabetes and Type 2 diabetes. If you have diabetes, consult a doctor before radically changing your fitness regimen.
If you do not have insulin resistance, the time of day you work out doesn't matter much.
But for people with pre-diabetes and Type 2 diabetes, studies suggest that afternoon exercise tends to help reduce blood sugar levels. That's because blood sugar rises and falls in regular patterns over the course of the day and as the day goes on, the body becomes less insulin sensitive. Thus afternoon exercise is typically less likely to cause dangerous glucose spikes.
Experts recommend working out at least three days per week, with no more than two days in a row without activity. For people with insulin resistance, including diabetes, the best time to exercise is about 30 minutes after starting a meal to prevent blood sugar spikes.
If morning workouts fit better with your schedule, try not to eat too many carbohydrates beforehand and start the day with a small meal of protein and healthy carbohydrates like fruit, vegetables and whole grains.
Pre-diabetes and new-onset diabetes are much more responsive to lifestyle changes like diet and exercise than longer-term cases, Hensrud said, so it's important to address insulin resistance as soon as possible.
'I tell people with new diabetes they're in control,' he said, 'and the most important thing to do is decrease weight through dietary changes and exercise.' — The New York Times
BLURB
The causes of diabetes are complex. Family history, genetics, weight and diet certainly play a role. But it's clear that exercise can dramatically lower your blood glucose, regardless of your diagnosis and improve how well your body uses insulin.

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a day ago
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This is easy to solve
Middle East peace, climate change, Ukraine — if Sisyphus were assigned one of today's global problems, he'd plead to be returned to rock rolling. So let's focus for a moment on a global challenge that we can actually solve: starvation. I suspect that some Americans — perhaps including President Donald Trump — want to slash humanitarian aid because they think problems like starvation are intractable. Absolutely wrong! We have nifty, elegant and cheap solutions to global hunger. Consider something really simple: deworming. I'm travelling through West Africa on my annual win-a-trip journey, in which I take a university student along on a reporting trip and every day we see children plagued by worms that aggravate their malnutrition. Nutrients go to their parasites, not to them. While worms are worthy antagonists — a female worm can lay 200,000 eggs in a day — aid agencies can deworm a child for less than $1 a year. This makes them stronger, less anemic and more likely to attend school. Researchers have even found higher lifetime earnings. In the US, we spend considerable sums deworming pets; every year I spend $170 deworming my dog, Connie Kuvasz Kristof. Yet deworming the world's children has never been as high a priority as deworming pets in the West, so we tolerate a situation in which 1 billion children worldwide carry worms. My win-a-trip winner, Sofia Barnett of Brown University and I are reminded in every village we visit of the toll of hunger. Malnutrition leaves more than one-fifth of children worldwide stunted, countless millions cognitively impaired and vast numbers (especially menstruating women and girls) weak from anemia. Malnutrition is a factor in 45 per cent of child deaths worldwide. A health worker weighs a baby at a clinic in Bombali District, Sierra Leone. NYT file photo Yet we also see how these deaths can be inexpensively prevented. In one Sierra Leone clinic, we met a 13-month-old boy, Abukamara, with sores and stick limbs from severe malnutrition. His mother, Mariatu Fornah, invited us to her village deep in the bush. The family is impoverished and struggling. The parents and four children share a mattress in a thatch-roof mud-brick hut with no electricity, and no one in the family had eaten that day, even though it was early afternoon. Fornah is doing what she can. She spent her entire savings of $3 and traded away a dress to get a traditional herb remedy for Abukamara, and she made the long trek to the clinic to get help. And there she found it — in the form of a miracle peanut paste. The clinic gave her a supply of the peanut paste, one foil packet a day and it will almost certainly restore Abukamara. This peanut paste contains protein, micronutrients and everything a child's body needs, plus it tastes good and costs just $1 per child per day. 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Observer
31-05-2025
- Observer
How to manage blood sugar with exercise
These days, more and more of us have to worry about our blood sugar. Some 38 million Americans have diabetes and more than two times that number have pre-diabetes. Many millions more have some form of insulin resistance, which can make you tired, irritable and even dizzy. And all of these conditions become more common as we age. The good news is that exercise can help. It's at least as important as your diet for preventing and treating insulin resistance and diabetes. It can also help you lose weight, which is often the most important step in levelling out blood sugar. Exercise has several unique ways to help your body process glucose, said Dr Donald Hensrud, a specialist in preventive medicine and nutrition; and medical editor of 'The Mayo Clinic Diet.' Although any exercise is good for you, the type of movement you choose and when you do it can play a big role in how much it helps. Here are some things you should think about when planning workouts, according to experts. The causes of diabetes are complex. Family history, genetics, weight and diet certainly play a role. But it's clear that exercise can dramatically lower your blood glucose, regardless of your diagnosis and improve how well your body uses insulin. In fact, research has shown that exercise is generally more effective at preventing diabetes than medication is (though it is important to use all types of treatment). During exercise, your muscle cells can more easily use the glucose in your blood. This lowers blood sugar directly and can also reduce the fat around your organs, an important risk factor for diabetes and insulin resistance, said Dr Gerald I Shulman, a professor of medicine and physiology at the Yale School of Medicine. In particular, studies show that regular high-intensity interval training or moderate continuous exercise can make a difference, reversing pre-diabetes in almost 40% of the participants — although it could take months or even years for many people to see long-lasting changes. Any movement is better than none and simply going for a walk can have benefits. But according to research, the two most effective ways to lower your blood sugar through exercise are high-intensity workouts and strength training. A recent study found that strength training was significantly more effective for controlling blood sugar levels than aerobic exercise for people with Type 2 diabetes and this likely holds true for other people worried about their blood sugar, Shulman said. Also, both aerobic exercise and strength training create more mitochondria, which can help fight Type 2 diabetes, but weightlifting appears to be slightly more effective than aerobic exercise, assuming you are pushing yourself, Shulman said. Strength training is especially important for older people, since insulin resistance and Type 2 diabetes accelerate the normal loss of muscle and strength that comes with age, particularly for women. While walking is good exercise for the heart, it generally won't build much muscle, said Michael Joseph Gross, author of 'Stronger: The Untold Story of Muscles in Our Lives.' The way you strength-train is also important, he added. To be most effective, the weights should feel heavy. A systematic review of the research found that lifting challenging weights helped lower blood sugar more effectively than low-intensity strength training. Consider alternating your strength training session with high-intensity interval training, which has been shown to be especially effective in managing blood sugar for people with pre-diabetes and Type 2 diabetes. If you have diabetes, consult a doctor before radically changing your fitness regimen. If you do not have insulin resistance, the time of day you work out doesn't matter much. But for people with pre-diabetes and Type 2 diabetes, studies suggest that afternoon exercise tends to help reduce blood sugar levels. That's because blood sugar rises and falls in regular patterns over the course of the day and as the day goes on, the body becomes less insulin sensitive. Thus afternoon exercise is typically less likely to cause dangerous glucose spikes. Experts recommend working out at least three days per week, with no more than two days in a row without activity. For people with insulin resistance, including diabetes, the best time to exercise is about 30 minutes after starting a meal to prevent blood sugar spikes. If morning workouts fit better with your schedule, try not to eat too many carbohydrates beforehand and start the day with a small meal of protein and healthy carbohydrates like fruit, vegetables and whole grains. Pre-diabetes and new-onset diabetes are much more responsive to lifestyle changes like diet and exercise than longer-term cases, Hensrud said, so it's important to address insulin resistance as soon as possible. 'I tell people with new diabetes they're in control,' he said, 'and the most important thing to do is decrease weight through dietary changes and exercise.' — The New York Times BLURB The causes of diabetes are complex. Family history, genetics, weight and diet certainly play a role. But it's clear that exercise can dramatically lower your blood glucose, regardless of your diagnosis and improve how well your body uses insulin.


Observer
27-05-2025
- Observer
How to manage your blood sugar with exercise
These days, more and more of us have to worry about our blood sugar. Some 38 million Americans have diabetes, and more than two times that number have prediabetes. Many millions more have some form of insulin resistance, which can make you tired, irritable and even dizzy. And all of these conditions become more common as we age. The good news is that exercise can help. It's at least as important as your diet for preventing and treating insulin resistance and diabetes. It can also help you lose weight, which is often the most important step in leveling out blood sugar. Exercise has several unique ways to help your body process glucose, said Dr. Donald Hensrud, a specialist in preventive medicine and nutrition and medical editor of 'The Mayo Clinic Diet.' Although any exercise is good for you, the type of movement you choose and when you do it can play a big role in how much it helps. Here are some things you should think about when planning workouts, according to experts. Exercise is essential for managing blood sugar. The causes of diabetes are complex. Family history, genetics, weight, and diet certainly play a role. But exercise can dramatically lower your blood glucose, regardless of your diagnosis, and improve how well your body uses insulin. Research has shown that exercise is generally more effective at preventing diabetes than medication is (though it is important to use all types of treatment). During exercise, your muscle cells can more easily use the glucose in your blood. This lowers blood sugar directly and can also reduce the fat around your organs, an important risk factor for diabetes and insulin resistance, said Dr. Gerald I. Shulman, a professor of medicine and physiology at the Yale School of Medicine. In particular, studies show that regular high-intensity interval training or moderate continuous exercise can make a difference, reversing prediabetes in almost 40% of the participants, although it could take months or even years for many people to see long-lasting changes. Prioritize strength training and intensity. Any movement is better than none, and simply going for a walk can have benefits. But according to research, the two most effective ways to lower your blood sugar through exercise are high-intensity workouts and strength training. A recent study found that strength training was significantly more effective for controlling blood sugar levels than aerobic exercise for people with Type 2 diabetes, and this likely holds true for other people worried about their blood sugar, Shulman said. Also, both aerobic exercise and strength training create more mitochondria, which can help fight Type 2 diabetes, but weightlifting appears to be slightly more effective than aerobic exercise, assuming you are pushing yourself, Shulman said. Strength training is especially important for older people, since insulin resistance and Type 2 diabetes accelerate the normal loss of muscle and strength that comes with age, particularly for women. While walking is good exercise for the heart, it generally won't build much muscle, said Michael Joseph Gross, author of 'Stronger: The Untold Story of Muscles in Our Lives.' The way you strength-train is also important, he added. To be most effective, the weights should feel heavy. A systematic review of the research found that lifting challenging weights helped lower blood sugar more effectively than low-intensity strength training. Consider alternating your strength training session with high-intensity interval training, which is especially effective in managing blood sugar for people with prediabetes and Type 2 diabetes. If you have diabetes, consult a doctor before radically changing your fitness regimen. When is the best time to work out? If you do not have insulin resistance, the time of day you work out doesn't matter much. But for people with prediabetes and Type 2 diabetes, studies suggest that afternoon exercise tends to help reduce blood sugar levels. That's because blood sugar rises and falls in regular patterns over the course of the day, and as the day goes on, the body becomes less insulin sensitive. Thus afternoon exercise is typically less likely to cause dangerous glucose spikes. Experts recommend working out at least three days per week, with no more than two days in a row without activity. For people with insulin resistance, including diabetes, the best time to exercise is about 30 minutes after starting a meal to prevent blood sugar spikes. If morning workouts fit better with your schedule, try not to eat too many carbohydrates beforehand and start the day with a small meal of protein and healthy carbohydrates like fruit, vegetables and whole grains. Prediabetes and new-onset diabetes are much more responsive to lifestyle changes like diet and exercise than longer-term cases, Hensrud said, so it's important to address insulin resistance as soon as possible. 'I tell people with new diabetes they're in control,' he said, 'and the most important thing to do is decrease weight through dietary changes and exercise.' This article originally appeared in