You can lower your blood sugar through a combination of everyday habits: walking after meals, eating foods in a specific order, getting enough sleep, and staying hydrated. Some of these strategies work within hours, while others build up over weeks. The approach that works best depends on whether you’re trying to manage a post-meal spike right now or bring down your overall levels over time.
For reference, normal fasting blood sugar is below 100 mg/dL. Prediabetes falls between 100 and 125 mg/dL, and diabetes is diagnosed at 126 mg/dL or higher. A1C, which reflects your average blood sugar over roughly three months, is normal below 5.7%, prediabetes at 5.7–6.4%, and diabetes at 6.5% or above.
Walk After Eating
One of the simplest and most effective things you can do is take a 15-minute walk after each meal. A study in Diabetes Care found that three 15-minute walks timed about 30 minutes after meals reduced 24-hour glucose levels by roughly 10%. That was actually more effective for controlling post-dinner blood sugar than a single 45-minute walk done in the morning or afternoon. The pace doesn’t need to be aggressive. A moderate effort, roughly the speed of a brisk stroll, is enough.
The timing matters more than the total duration. Your muscles pull glucose directly out of your bloodstream when they’re active, so walking right in the window when blood sugar peaks after a meal intercepts that spike. If you can only manage one post-meal walk a day, after dinner tends to produce the biggest benefit, since evening is when glucose regulation naturally slows down.
Eat Your Carbs Last
The order you eat your food in has a surprisingly large effect on blood sugar. When people with type 2 diabetes ate vegetables and protein before their carbohydrates, their post-meal glucose spike dropped by 44% compared to eating carbs first. This held true even when there was no pause between courses, meaning you don’t need to wait 10 minutes between your salad and your pasta. Just start with the vegetables and protein on your plate before moving to the bread, rice, or potatoes.
In real-world testing outside a lab, this carbs-last approach also improved the amount of time people spent in their target glucose range (about 85% versus 79% with carbs first) and reduced the overall swings in blood sugar throughout the day. It’s a free, zero-effort change that works at every meal.
Add More Soluble Fiber
Soluble fiber, the kind found in oats, beans, lentils, barley, apples, and flaxseed, slows the absorption of sugar from your gut into your bloodstream. A meta-analysis of randomized controlled trials found that soluble fiber supplementation lowered A1C by an average of 0.63 percentage points in people with type 2 diabetes. That’s a meaningful drop, comparable to some medications.
The effective daily dose identified in the research was about 7.6 to 8.3 grams of soluble fiber. For context, a cup of cooked oatmeal has roughly 2 grams of soluble fiber, a cup of black beans about 4 grams, and a medium apple about 1 gram. Spreading fiber-rich foods across your meals rather than loading them into one sitting gives you the most consistent glucose control.
Exercise Beyond Walking
Both aerobic exercise (running, cycling, swimming) and resistance training (weight lifting, bodyweight exercises) improve how well your cells respond to insulin. A randomized trial comparing the two found that after four months, aerobic training improved insulin sensitivity by about 30%, while resistance training improved it by about 15%. Both are beneficial, and combining them likely offers the most complete effect.
Reducing visceral fat, the fat stored deep around your organs, was independently linked to improvements in insulin sensitivity regardless of which type of exercise people did. You don’t need to see dramatic changes on the scale. Even modest reductions in abdominal fat can shift your body’s glucose regulation in the right direction.
Sleep Enough
Short sleep directly raises blood sugar, and the effect is fast. In a controlled study of healthy men, restricting sleep to about five hours per night for just one week reduced insulin sensitivity by 20%. That means their bodies needed substantially more insulin to clear the same amount of glucose from the blood, a pattern that, over time, leads to chronically elevated blood sugar.
This isn’t about a single bad night. But consistently sleeping six hours or less creates a metabolic environment that makes every other blood sugar strategy less effective. If you’re doing everything else right and your numbers aren’t budging, sleep is worth examining honestly.
Stay Hydrated
Dehydration concentrates glucose in your blood and triggers a hormonal response that raises blood sugar further. When your body senses low water levels, it releases a hormone called vasopressin to conserve water at the kidneys. Vasopressin has an additional effect: it acutely increases blood glucose. So mild dehydration creates a double hit, concentrating the sugar you already have while prompting your body to add more.
In people with diabetes, high blood sugar itself causes increased urination, which leads to further dehydration in a self-reinforcing cycle. Drinking water consistently throughout the day helps break that cycle. Plain water is ideal since juice, sweetened drinks, and even some flavored waters add sugar that works against you.
Manage Stress
When you’re stressed, your body releases cortisol, which directly signals your liver to produce and release glucose into the bloodstream. Cortisol does this by turning on genes that encode the enzymes responsible for making new glucose. It also blocks insulin’s ability to shut that process down. The result is a sustained rise in blood sugar that has nothing to do with what you ate.
This is why some people see unexplained blood sugar spikes during stressful periods at work or after poor sleep (which is itself a physical stressor). Practices that lower cortisol, such as regular physical activity, adequate sleep, deep breathing, or simply reducing the sources of chronic stress in your life, can have a measurable effect on glucose levels.
Apple Cider Vinegar
There’s some evidence that apple cider vinegar can modestly lower blood sugar. In one small study, people who consumed about 2 tablespoons (30 mL) of apple cider vinegar daily for eight weeks saw their A1C drop from 9.21% to 7.79%, though participants were also encouraged to follow a healthy diet, making it hard to isolate the vinegar’s contribution. The most practical way to use it is mixed into salad dressings, sauces, or marinades as part of a meal rather than drinking it straight, which can damage tooth enamel and irritate the esophagus.
What About Chromium Supplements?
Chromium is one of the most commonly marketed supplements for blood sugar, but the evidence is underwhelming. A 2019 review covering 58 clinical trials found that chromium supplementation slightly lowered fasting blood sugar and A1C in people with diabetes, but the reductions were small enough that their clinical significance remains unclear. The American Diabetes Association has concluded that the evidence is insufficient to recommend chromium supplements for blood sugar management.
One older trial using 1,000 micrograms per day of chromium picolinate did show a notable A1C reduction (from 8.5% to 6.6% over four months), but those results haven’t been consistently replicated. The FDA has stated that the relationship between chromium picolinate and diabetes risk is “highly uncertain.” Your money and effort are better spent on the dietary and lifestyle changes above, which have far stronger and more consistent evidence behind them.