High blood sugar, also known as hyperglycemia, is associated with diabetes and prediabetes. Prediabetes is when your blood sugar is high, but not high enough to be classified as diabetes.
Your body usually manages your blood sugar levels by producing insulin, a hormone that allows your cells to use the circulating sugar in your blood. As such, insulin is the most important regulator of blood sugar levels (1Trusted Source).
However, multiple factors can impair blood sugar management and lead to hyperglycemia.
Internal causes for high blood sugar include when your liver produces too much glucose, your body makes too little insulin, or your body can’t effectively use insulin. The latter is known as insulin resistance (1Trusted Source).
External factors include dietary choices, certain medications, a sedentary lifestyle, and stress (1Trusted Source, 2Trusted Source).
The Centers for Disease Control and Prevention (CDC) reports that 13% of U.S. adults live with diabetes and that another 34.5% have prediabetes. This means that close to 50% of all U.S. adults have diabetes or prediabetes (3Trusted Source).
Blood sugar management is especially important for people with diabetes, as chronically high blood sugar levels can lead to limb and life threatening complications (1Trusted Source).
Here are 14 easy and evidence-backed ways to naturally lower your blood sugar levels.
1. Exercise regularly
Regular exercise can help you reach and maintain a moderate weight and increase insulin sensitivity (4Trusted Source).
Increased insulin sensitivity means your cells can more effectively use the available sugar in your bloodstream.
Exercise also helps your muscles use blood sugar for energy and muscle contraction (4Trusted Source).
If you have problems with blood sugar management, consider routinely checking your levels before and after exercising. This will help you learn how you respond to different activities and keep your blood sugar levels from getting too high or low (5).
What’s more, researchers recommend doing so-called “exercise snacks” to lower blood sugar and prevent the damage that sitting all day can do (6Trusted Source).
Exercise snacks simply mean that you break up your sitting time every 30 minutes for just a few minutes throughout the day. Some of the recommended exercises include light walking or simple resistance exercises like squats or leg raises.
Other useful forms of exercise include weightlifting, brisk walking, running, biking, dancing, hiking, swimming, and more. In fact, any activity that regularly gets you up and moving — regardless of the intensity — beats a sedentary lifestyle.
Plus, know that if you have trouble dedicating longer periods to exercise throughout the week, you can still gain many benefits by doing shorter sessions. For example, try aiming for 10-minute exercise sessions 3 times a day for 5 days, with the goal of 150 minutes per week.
2. Manage your carb intake
Your carb intake strongly influences your blood sugar levels (7Trusted Source).
Your body breaks carbs down into sugars, mainly glucose. Then, insulin helps your body use and store it for energy.
When you eat too many carbs or have insulin-function problems, this process fails, and blood glucose levels can rise.
That’s why the American Diabetes Association (ADA) recommends that people with diabetes manage their carb intake by counting carbs and being aware of how many they need (8).
Some studies find that this can help you plan your meals appropriately, further improving blood sugar management (9Trusted Source, 10Trusted Source).
Many studies also show that eating a low carb diet helps reduce blood sugar levels and prevent blood sugar spikes (11Trusted Source, 12Trusted Source, 13Trusted Source).
It’s important to note that low carb diets and no carb diets are not the same.
You can still eat some carbs when monitoring your blood sugar. However, prioritizing whole grains over processed ones and refined carbs provides greater nutritional value while helping decrease your blood sugar levels (14Trusted Source)
3. Eat more fiber
Fiber slows carb digestion and sugar absorption, thereby promoting a more gradual rise in blood sugar levels (15Trusted Source).
There are two types of fiber — insoluble and soluble.
While both are important, soluble fiber has explicitly been shown to improve blood sugar management, while insoluble fiber hasn’t been shown to have this effect (15Trusted Source, 16Trusted Source).
A high fiber diet can improve your body’s ability to regulate blood sugar and minimize blood sugar lows. This could help you better manage type 1 diabetes (17Trusted Source).
Foods that are high in fiber include:
vegetables
fruits
legumes
whole grains
The recommended daily intake of fiber is about 25 grams for women and 35 grams for men. That’s about 14 grams for every 1,000 calories (18Trusted Source).
4. Drink water and stay hydrated
Drinking enough water could help you keep your blood sugar levels within healthy ranges.
In addition to preventing dehydration, it helps your kidneys flush out any excess sugar through urine.
One review of observational studies showed that those who drank more water had a lower risk of developing high blood sugar levels (19Trusted Source).
Drinking water regularly may rehydrate the blood, lower blood sugar levels, and reduce diabetes risk (20Trusted Source, 21Trusted Source).
Keep in mind that water and other zero-calorie drinks are best. Avoid sugar-sweetened options, as these can raise blood glucose, drive weight gain, and increase diabetes risk (22Trusted Source, 23Trusted Source)
5. Implement portion control
Portion control can help you regulate your calorie intake and maintain a moderate weight (24Trusted Source, 25Trusted Source).
Consequently, weight management promotes healthy blood sugar levels and has been shown to reduce the risk of developing type 2 diabetes (1Trusted Source, 26Trusted Source, 27Trusted Source).
Monitoring your serving sizes also helps prevent blood sugar spikes (2Trusted Source).
Here are some helpful tips for managing portion sizes:
measure and weigh your portions
use smaller plates
avoid all-you-can-eat restaurants
read food labels and check the serving sizes
keep a food journal
eat slowly
6. Choose foods with a low glycemic index
The glycemic index (GI) measures how quickly carbs break down during digestion and how rapidly your body absorbs them. This affects how quickly your blood sugar levels rise (15Trusted Source).
The GI divides foods into low, medium, and high GI and ranks them on a scale of 0–100. Low GI foods have a ranking of 55 or less (15Trusted Source, 28Trusted Source).
Both the amount and type of carbs you eat determine how a food affects your blood sugar levels. Specifically, eating low GI foods has been shown to reduce blood sugar levels in people with diabetes (15Trusted Source, 28Trusted Source).
Some examples of foods with a low to moderate GI include:
bulgur
barley
unsweetened Greek yogurt
oats
beans
lentils
legumes
whole wheat pasta
non-starchy vegetables
Furthermore, adding protein or healthy fats helps minimize blood sugar spikes after a meal (15Trusted Source).
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