How to lower blood sugar naturally: walking, food order, sleep and stress

Search for ways to lower blood sugar naturally and you will find a lot of noise: cinnamon, vinegar, special teas. The NIDDK says there is no clear proof that specific foods, herbs, spices or supplements can help manage diabetes.¹² This guide sticks to habits that have at least some research behind them. That means movement, how you build a meal, fiber, sleep and stress, plus a safety section, because "natural" never means "risk free" if you take diabetes medicines.

It is written for adults across the Triangle and beyond. Most of these habits fit an ordinary day, whether that is a walk around the block in Durham after lunch or a quieter evening at home in Cary. I work alongside your own doctor and start with one change, not ten. Pick one and see how it goes.

How can you lower blood sugar naturally?

The habits with some research behind them are light movement, more fiber and vegetables, a sensible meal order, enough sleep and steadier stress. Each has some evidence, and some of it comes from small or short studies, so the honest framing is "helpful habits," not "a fix." None replaces your medicines or your doctor's advice.

Here is the order I would try them in, from easiest to hardest:

1. Walk for a few minutes after eating.
2. Put vegetables and protein first on the plate.
3. Add fiber from vegetables, beans and whole grains, slowly.
4. Protect your sleep.
5. Give stress a place to go.
6. If you carry extra weight, aim for a small loss. The CDC defines a small amount as around 5% to 7% of body weight, about 10 to 14 pounds for a 200-pound person.¹⁰

The CDC also says regular physical activity means at least 150 minutes a week of brisk walking or a similar activity, about 30 minutes a day, 5 days a week.¹⁰ That is the longer-term target. The sections below are about the small steps that get you there.

Does walking after meals help?

Short trials suggest it can, and it is easy to try. A pooled analysis of seven acute, one-day crossover trials found that light-intensity walking breaks significantly lowered blood sugar after meals compared with sitting.¹ Insulin was lower too, in the four trials that measured it.¹ Walking breaks also did better than standing breaks.¹ The authors concluded that light-intensity walking was a superior kind of activity break.¹

The walking in those trials was brief and scheduled in breaks while people otherwise sat. The breaks ran from 2 minutes to 30 minutes, spaced from every 20 minutes to every hour, and most of the adults had overweight or obesity.¹ So the trials did not test one walk after dinner. You do not need to hit a step count. A short stroll after a meal is a reasonable thing to try.

Some limits to keep in mind:

• These were short, controlled, one-day studies, not months of real life.¹
• The studies compared walking breaks with sitting and standing. They do not tell you the best time or distance for you.
• If you take insulin or some other diabetes medicines, extra activity can lower your blood sugar. The NIDDK says to check your blood glucose before, during and right after physical activity, and to ask your health care professional whether you should take less insulin or eat carbs before, during or after.¹² It also says raising your activity beyond your usual routine can lower blood glucose for up to 24 hours.⁸

Does the order you eat food matter?

It might. In a small pilot crossover study of 11 adults with type 2 diabetes who took metformin, blood sugar was lower when vegetables and protein were eaten before carbohydrates than when carbohydrates came first. Glucose was 28.6% lower at 30 minutes, about 37% lower at 60 minutes and 16.8% lower at 120 minutes.² The study also found lower insulin at 60 and 120 minutes.²

How the test worked: the same meal was eaten on two visits a week apart, with the order reversed. In the carbohydrate-first visit, the bread and orange juice came first, with the protein and vegetables 15 minutes later.² The authors noted a limit: they only followed responses up to 120 minutes after the meal, and they called for longer follow-up.²

What that means for you:

• It is a small study, with 11 people, who all had type 2 diabetes and took metformin. It does not prove the same effect in everyone.
• The habit is easy and low risk for most people. Start with the salad or the vegetables, then the protein, then the starch.
• It fits the plate method the CDC describes: half nonstarchy vegetables, a quarter lean protein, a quarter carbohydrate foods.¹¹

For more on what goes on that plate, see what to eat with prediabetes.

Fiber supports the same goal. The CDC explains that your body does not absorb and break down fiber, so it does not cause the sharp blood sugar rise that other carbohydrates can.³ The Dietary Guidelines for Americans recommend 22 to 34 grams of fiber a day for adults, depending on age and sex, and the CDC says most US adults get about half of what they need.³ Its tips are to choose whole grains, focus on nonstarchy vegetables, add beans or other legumes, and add fiber slowly.³

For drinks, the CDC suggests water or a low-calorie drink such as unsweetened iced tea with meals, and says fruit juice raises blood sugar faster than whole fruit.¹¹

How do sleep and stress affect blood sugar?

Both can matter, though the research is less clear-cut than for food and movement. Sleep first. The CDC says adults 18 to 60 need 7 or more hours a night, and that getting enough may lower your risk of type 2 diabetes.⁴

One small crossover study tested whether more sleep helps. It followed 21 adults without diabetes who usually slept 6 hours or less. Two weeks of extended sleep did not significantly change any measure across the whole group. In the 8 people who actually slept more than 6 hours, a measure of insulin resistance improved.⁵ The authors suggested a minimum amount of sleep may be needed for a benefit.⁵ So the takeaway is modest: aim for enough sleep, and be wary of any claim that sleep alone changes your numbers.

Stress works through hormones. Cleveland Clinic, writing about people with diabetes, explains that stress hormones tell the liver to release extra sugar into the blood, which can cause glucose levels to spike, and that constant stress can strain your body's ability to manage glucose over time.⁶ The NIDDK says mental stressors can increase blood glucose in people with type 2 diabetes.⁷ Cleveland Clinic also lists emotional stress, illness, surgery and injury as temporary causes of higher blood sugar.⁹

What helps, according to these sources:

• Relaxation practices such as deep breathing, meditation, yoga and mindfulness.⁶
• Movement you enjoy, such as walking, dancing or biking.⁶
• Talking with trusted people.⁶
• A brief body scan or a stress journal.⁷

If you try these and still cannot manage your stress, Cleveland Clinic suggests contacting a diabetes educator or health care provider about other options.⁶ In my own framing, this is the Roots part of daily life, and Rhythm is the sleep side of it. For more on the stress side, the Garden Check-in is a quick place to see which area to look at first. If you often feel drained after meals, see tired after eating as well.

Is it safe if you take diabetes medicines?

Only with your doctor's input. Anyone who takes insulin or some other diabetes medicines can get low blood sugar when food or activity changes. The NIDDK says low blood glucose can be a side effect of insulin or some other medicines, such as sulfonylureas and meglitinides, and that skipping or delaying meals, not eating enough carbohydrates, or raising your activity beyond your usual routine can also cause it.⁸ Alcohol without enough food can too.⁸

Safety box.

• Never stop or change a medicine without your doctor. Natural habits are added to your care, not swapped in for it.
• Tell your doctor before you change how you eat or exercise. Ask whether you should eat carbohydrates or take less insulin around activity.¹²
• Know the signs of low blood sugar. The NIDDK lists feeling shaky, hungry, tired, dizzy or irritable, or having a headache.⁸ Severe low blood glucose can cause a person to lose consciousness or have a seizure, and needs to be addressed right away.⁸
• Ask your doctor what to do if your level drops below your target. The NIDDK says that for many people with diabetes, low blood glucose is a reading lower than 70 mg/dL, but your number might be different, so check with your doctor or health care team.⁸

I never ask anyone to stop a medicine. If your numbers improve, your own doctor is the person to decide whether anything changes.

When should you see your own doctor?

See your own doctor if you have symptoms of high blood sugar, if you have not been tested and have risk factors, or if you take diabetes medicines and plan to change your food or exercise. Early symptoms of high blood sugar listed by Cleveland Clinic include excessive thirst or hunger, frequent urination, headache and blurred vision.⁹

Make an appointment for:

• Those symptoms, which Cleveland Clinic says should be seen by a healthcare provider.⁹
• Frequent high readings if you have diabetes. Cleveland Clinic says to talk to the provider who helps you manage it.⁹
• Lows after a change in food, activity or timing of a medicine.⁸
• Stress that you cannot manage, or low mood that does not lift.⁶

Call 911 for severe symptoms. Cleveland Clinic calls diabetic ketoacidosis an emergency, and its signs include nausea and vomiting, abdominal pain, fruity-smelling breath, deep labored breathing, confusion and loss of consciousness.⁹ Call 911 as well if someone with low blood sugar loses consciousness or has a seizure.⁸

Call or text 988 if low mood comes with thoughts of harming yourself. It is free and open all day and night. If life is in danger, call 911.

This article is general education from Dr. Maurice Werness, ND, and not a substitute for individual medical advice.