The 9 Best Sugar Substitutes for People With Type 2 Diabetes

This sweetener is excellent for people with type 2 diabetes. That’s because Splenda is 600 times sweeter than sugar, yet those little yellow packets have no effect on blood sugar, says Keri Glassman, RD, CDN, of Nutritious Life, a nutrition practice based in New York City.

In addition, Splenda passes through the body with minimal absorption. These attributes have helped it become the most commonly used artificial sweetener worldwide, according to one article.

The U.S. Food and Drug Administration (FDA), which has approved sucralose, recommends an acceptable daily intake (ADI) of 5 milligrams (mg) or less of sucralose per kilogram (kg) of body weight per day. A 132-pound (lb) individual would need to consume 23 tabletop packets of the artificial sweetener per day to reach that limit.

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Saccharin, the sweetener sold in pink packets under the brand name Sweet’N Low, is calorie-free and about 300 to 500 times sweeter than sugar, per the Sweet’N Low website. It was the first artificial sweetener, with chemists discovering it as a derivative of coal tar by mistake in 1879, according to Britannica.

If you’ve been using artificial sweeteners since the 1970s, you may remember a previous warning label that warned of saccharin increasing the risk for cancer. But rest assured it’s safe. The research that prompted the label was done on animals, and further studies by the National Toxicology Program of the National Institutes of Health concluded that saccharin shouldn’t be on the list of potential carcinogens. Saccharin is FDA-approved.

A 132-lb individual would need to consume 45 tabletop packets of the artificial sweetener per day to reach the ADI of 15 mg of saccharin per kg of body weight per day, according to the FDA.

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Aspartame, sold in blue packets under the brand names Equal and NutraSweet, is a nonnutritive artificial sweetener that is 200 times sweeter than sugar, according to the FDA. While not zero-calorie like some other artificial sweeteners, aspartame is still very low in calories.

While the FDA has reviewed the scientific research and found aspartame safe to eat, Glassman notes there have also been some conflicting study results on this sweetener’s safety. “Although its low-calorie reputation is appealing for most weight-conscious individuals, it has been linked to many negative side effects,” Glassman says. Some animal research has shown linkage to leukemia, lymphoma, and breast cancer.

Yet European regulatory agencies have concluded that aspartame is “safe” and that research doesn’t indicate an increased risk of cancer in humans.

Nevertheless, people with phenylketonuria (PKU), a rare condition in which they are unable to metabolize phenylalanine (a key component of aspartame), should not consume this sugar substitute, notes the NHS. If you don’t have PKU, aspartame is safe to consume.

A 132-lb individual would need to consume a whopping 75 tabletop packets of the artificial sweetener per day to reach the ADI of 50 mg of aspartame per kg of body weight per day, notes the FDA.

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Steviol glycosides are sweeteners derived from the leaf of the stevia plant, which is native to Central and South America. Truvia and Pure Via, both brands of stevia-based sweetener, are calorie-free, and stevia is often used as a sweetener in foods and beverages. According to the ADA’s 2023 Standards of Care in Diabetes, nonnutritive sweeteners, including stevia, have little to no impact on blood sugar. The FDA has approved the use of certain stevia extracts, which it has generally recognized as safe (a term that is applied to food additives that qualified experts deem as safe, and therefore not subject to the usual premarket review and approval process).

Memorial Sloan Kettering Cancer Center notes that people have reported side effects, like gastrointestinal symptoms, after eating high amounts of stevia. But to date, there is no solid scientific research to prove these claims.

The FDA recommends an ADI of 4 mg or less of Truvia per kg of body weight per day. A 132-lb individual would need to consume nine tabletop packets of the artificial sweetener per day to reach that limit.

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Sugar alcohols, or polyols, are derived from the natural fibers in fruits and vegetables, according to Yale New Haven Health. Commonly used sugar alcohol sweeteners in many so-called “sugar-free” desserts, candies, and gums include:

• Xylitol
• Sorbitol
• Mannitol
• Isomalt

Though sugar alcohols are relatively low in calories and more blood sugar-friendly than carbohydrates, they may have a laxative effect and cause indigestion, bloating, and diarrhea in some people, the FDA points out. Products containing sorbitol and mannitol must bear a label warning that excess consumption can cause a laxative effect, per the FDA.

The gastrointestinal symptoms arise because sugar alcohols are not completely absorbed in the digestive tract, says Lynn Grieger, RDN, CDCES, a medical reviewer for Everyday Health who’s based in Prescott, Arizona. She explains that unabsorbed carbohydrates from these sweeteners pass into the large intestine where they are fermented by gut bacteria to produce gas. See how you respond to a small amount before incorporating them into your daily diet.

Also, keep in mind that sugar alcohols do contain some carbohydrates and are nutritive sweeteners, so they can affect blood sugar levels.

“It’s important for people with diabetes to read the nutrition facts label for total carbohydrate content and plan accordingly,” says Grieger. “Remember that the information in a nutrition facts label is based on one serving, and it’s easy to eat more than one serving of foods that contain sugar alcohols, which can increase the total carbohydrate consumed.” If you count carbs to manage diabetes, a common rule of thumb is to subtract half the amount of the sugar alcohol carbs listed on the nutrition label from the total carbs listed, according to the University of California, San Francisco.

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Erythritol is also a sugar alcohol sweetener, but unlike the others just mentioned, it has less than 1 calorie per gram and doesn’t have a big effect on blood sugar levels, per the St. Luke’s Health. It’s an ingredient in the stevia-derived sweetener Truvia, and it’s marketed under the brand name Swerve. Swerve measures cup-for-cup like sugar, and you can use it like table sugar, or in cooking and baking recipes that call for sugar.

If other sugar alcohol sweeteners give you tummy trouble, this may be a better option for you. It is less likely to produce the gas, bloating, and diarrhea that happen from fermentation by gut bacteria because only about 10 percent of the erythritol you consume enters the colon, per research. The rest leaves the body through your urine.

There’s no ADI for erythritol, but the FDA hasn’t questioned notices submitted by erythritol makers that the sweetener is “generally recognized as safe.” However, use caution when consuming erythritol. Recent studies have found an increased risk of heart attack and stroke. The research states that long-term studies are necessary.

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Also known by the names Luo Han Guo fruit extract and Siraitia grosvenorii Swingle fruit extract, this nonnutritive sweetener comes from a plant native to southern China. The extract contains 0 calories per serving, per Food Insight. And according to the FDA, it is 150 to 200 times sweeter than sugar. Popular brands include Monk Fruit in the Raw and Lakanto. The FDA has not questioned notices submitted by monk fruit sweetener makers that the extract is “generally recognized as safe.” The agency doesn’t specify an ADI for monk fruit sweetener.

Also known as Ace-K, this nonnutritive sweetener is FDA-approved and about 200 times sweeter than sugar. Often, manufacturers combine it with other sweeteners, though it is also sold for tabletop use under the brand name Sweet One. You will also find it in popular diet soft drinks, such as Coca-Cola Zero Sugar and Diet Mountain Dew.

Some research involving mice has suggested possible issues with Ace-K, including one study that concluded that consumption of Ace-K led to gut dysposis. Another study focused on humans theorized that large quantities in pregnant women may lead to early delivery.

The FDA recommends an ADI of 15 mg or less of Ace-K per kg of body weight per day. A 132-pound individual would need to consume 23 tabletop packets of the artificial sweetener per day to reach that limit.

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Allulose (also known as D-allulose or D-psicose) is an extremely low-calorie sweetener that occurs naturally in small amounts in wheat, raisins, dried figs, brown sugar, and molasses, according to the FDA. Marketed under the brand name Dolcia Prima (which Tate & Lyle, Splenda’s manufacturer, makes), it has 90 percent fewer calories than sucrose, while being 70 percent as sweet.

You can find Dolcia Prima in Magic Spoon Cereal, which is sold online; and expect to see it soon in beverages, desserts, candy, yogurt, and other treats. That’s because allulose got a big boost from the FDA when the agency declared the sweetener can be excluded from the total and added sugars listed on nutrition labels going forward.

“The latest data suggests that allulose is different from other sugars in that it is not metabolized by the human body in the same way as table sugar,” says Susan Mayne, PhD, director of FDA’s Center for Food Safety and Applied Nutrition. “It has fewer calories, produces only negligible increases in blood glucose or insulin levels, and does not promote dental decay.”

Under the revised guidance, manufacturers can use a caloric value of 0.4 calories per gram to calculate the total number of calories per serving of allulose, instead of the previous 4 calories per gram. The sweetener still must be included in the total carbohydrates listed, though. While allulose isn’t on the list of FDA-approved sweeteners, the agency hasn’t questioned notices submitted by manufacturers that the sweetener is “generally recognized as safe.”

But Canada has yet to add it to their list of permitted sweeteners. Furthermore, research into its effectiveness for controlling blood sugar is limited to small studies, including one study that was funded by Tate & Lyle. The authors observed that small doses of allulose (5 or 10 g) did not have a significant effect on blood glucose levels when taken with a standard glucose tolerance test, but they recommended larger sample sizes for future studies.

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One Last Thing About Using Sugar Substitutes When Managing Type 2 Diabetes

As you can see, there are many artificial sweeteners to help you reach your blood sugar goals. Just remember that maintaining them will be easier if you practice moderation and don’t allow sweet-tasting food and beverages to lead you to overconsume them. “A major goal should be to reduce all types of sweeteners in your diet, including sugar substitutes, so that you become accustomed to the naturally sweet taste of food,” says Grieger. Then trust your body to tell you when enough is enough.

Additional reporting by Margaret O’Malley.