The 5 Best Teas to Drink for Better Blood Sugar

If you’re living with diabetes, you likely spend a lot of time planning what goes on your plate. But what about what you pour into your glass or mug? Drinks are easy to overlook. Yet, they can also have a big impact on your blood sugar. On the flip side, not drinking enough can also be a problem, as dehydration may contribute to high blood sugar. 

Luckily, there are plenty of blood sugar-friendly beverages out there. One of our favorite sugar-free beverages is tea, which happens to be the second most popular beverage in the world after water. Tea offers loads of health benefits, and better blood sugar is one of them. 

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With all the different types of teas to choose from, you may be wondering what are the best ones to drink for blood sugar management. To find out, we asked dietitians. Here’s what they told us. 

1. Green Tea

Delicate, earthy green is consistently linked to a host of health benefits, including better blood sugar. In fact, research has found that it may help reduce fasting blood glucose and improve insulin sensitivity in people with diabetes.  What makes it so effective? “The gut houses trillions of microbes that influence blood sugar levels,” says Kimberley Rose-Francis RDN, CDCES, LD, a registered dietitian and certified diabetes educator in private practice in Florida. “An imbalanced gut microbiota can lead to decreased glucose tolerance and insulin resistance. Green tea is rich in polyphenols, which are small plant-based compounds associated with various health benefits, including improvements in gut health.”

For a healthy afternoon pick-me-up, brew some soothing Orange-Ginger Tea. Or, enjoy a cup of our no-sugar-added ginger-lemon tea. 

2. Black Tea

Although green and black tea look and taste quite different, they both come from the Camellia sinensis plant. So, it makes sense that they share many of the same health benefits. That includes better blood sugar. While there is not as much research on the benefits of black tea for blood glucose management, one review study reports that it may aid in glucose metabolism and improve the body’s sensitivity to its own insulin. Researchers aren’t sure exactly why. However, they note black tea’s abundant polyphenols may slow the digestion and absorption of sugars from food. This, in turn, may protect against weight gain, which is a powerful trigger for type 2 diabetes. 

We don’t have to tell you how comforting a cup of black tea is. But it’s also our favorite tea for energy. For an afternoon pick-me-up, try it iced in this zippy peach iced tea.

3. Ginger Tea

“Ginger is well-known for its ability to relieve nausea, but it may also help improve blood sugar levels when crushed and brewed into a fragrant tea,” says Rose-Francis. “Research indicates that ginger contains nearly 40 antioxidant compounds, which can be beneficial for treating various inflammatory conditions and may positively impact blood sugar levels over time.”, 

“Since chronically elevated blood sugar can lead to inflammation, ginger’s anti-inflammatory compounds could be considered a beneficial functional food for achieving better blood sugar balance,” she adds. Beyond the anti-inflammatory properties of ginger, this flavorful root may also help inhibit the absorption of carbohydrates, regulate glucose metabolism and protect the insulin-producing cells of the pancreas. 

You may have noticed that ginger already plays a starring role in several recipes in this article. However, if you’re a purist, try our simple ginger tea. All you need is water and a few slices of fresh ginger.

4. Cinnamon Tea

Cinnamon is more than a beloved baking spice. It can also be brewed into a delicious tea. “Cinnamon has been studied for its potential benefits of enhancing insulin function and supporting blood sugar,” says Vandana Sheth RDN, CDCES, FAND, a registered dietitian and certified diabetes educator specializing in plant-based nutrition. “It’s a naturally sweet flavored tea without added sugar, and a good option for those with diabetes.” Like ginger, cinnamon is rich in antioxidants that tackle the chronic inflammation that can make it harder to manage your blood sugar. In fact, several studies have shown that cinnamon powder may help lower blood glucose in people with and without diabetes. And one older study found that cinnamon tea may help reduce blood glucose in people without diabetes. 

You can easily brew a cup by steeping cinnamon sticks in water. Or, if you’re craving creamy comfort, combine it with black tea and other spices in a spicy cup of chai tea. 

5. Turmeric Tea

From better brain health to less heart disease, turmeric boasts a long list of health benefits. Research reveals that it may also reduce blood glucose and help with weight management. What makes it so powerful? Turmeric contains an active compound called curcumin, which is a potent anti-inflammatory and antioxidant. And, as you’ve already learned, inflammation and higher blood sugar often go hand-in-hand. No wonder researchers credit curcumin’s blood sugar-managing powers to its anti-inflammatory action. 

While you can always brew a simple bag of turmeric tea, there are all kinds of creative ways to use it, like this iced Anti-Inflammatory Golden Tonic. It does contain a touch of honey, but you can feel free to omit it for a sugar-free, blood-sugar-friendly drink.

Tips for Enjoying Tea

• Limit Added Sugars. Switching to unsweetened tea can be a useful strategy for ditching sugar-sweetened beverages, especially since the flavor options are endless. “Enjoy tea as is or with naturally sweet flavors like cinnamon, vanilla or ginger instead of added sugar,” says Sheth. “You can also consider using a low-no-calorie sweetener in place of sugar to sweeten your tea.” 
• Watch the Caffeine. Some teas, like green and black tea, naturally contain caffeine. So, if you’re sensitive to caffeine, you might be better off with an herbal tea like ginger, cinnamon or turmeric tea. Even if caffeine isn’t a problem for you, stick with caffeine-free tea later in the day so you can get a good night’s sleep. 
• Choose Herbal Teas Carefully. While the teas in this list are safe to consume with diabetes, there are some herbal teas you should avoid, especially aloe vera, chamomile and fenugreek tea. These and other herbal teas may interfere with diabetes medications. When in doubt, it’s a good idea to check with your healthcare provider. 

The Bottom Line

Relaxing with a cup of tea isn’t just a healthy, flavorful way to hydrate. Research reveals that some types of tea can do good things for your blood sugar. And dietitians agree! According to dietitians, green, black, ginger, cinnamon and turmeric tea are the best teas to drink for better blood sugar. For optimal blood sugar management, choose unsweetened teas or add a squeeze of citrus for natural sweetness. So, what are you waiting for? Get your teapot ready. It’s time to start sipping!