The Diet Hack That’s Giving You Diabetes

If you’re trying to control your waistline and prevent type 2 diabetes, you might think you’re doing yourself a favor by choosing “diet” or “sugar-free.”

After all, these foods use artificial sweeteners—they’re 100 times sweeter than sugar, yet they have zero calories.

Well, I hate to bust your bubble…

But if your fridge is loaded with diet sodas, I have bad news.

Instead of preventing diabetes, you could be sending your risk through the roof.

Researchers recently reviewed data from a 30-year study that included over 4,500 adults. They assessed their intake of artificial sweeteners like aspartame and sucralose and compared that to the number of diabetes diagnoses.

After crunching 30 years of data, they found that those who drank the most diet beverages had a 129 percent increased risk of diabetes.

Those with the highest intake of saccharin had a 110 percent increased risk of diabetes compared to those who consumed the least.

Of course, this isn’t the first study to call out artificial sweeteners as a wolf in sheep’s clothing. Earlier research linked them to increased diabetes risk and weight gain.

Other studies have found that sugar substitutes can sabotage the gut microbiome, negatively impacting blood sugar.

While the exact reasons artificial sweeteners may increase diabetes risk aren’t fully understood, researchers have proposed several possibilities:

Gut Microbiome Disruption: Studies suggest that artificial sweeteners may alter the composition of beneficial bacteria in the gut. This disruption could impair the body’s ability to process glucose effectively, leading to insulin resistance over time.

Taste-Metabolism Mismatch: The intense sweetness of artificial sweeteners may trigger the body’s insulin response even without actual sugar present. This repeated “false alarm” could desensitize insulin receptors, making it harder for the body to manage blood sugar when real glucose enters the system.

Behavioral Compensation: Some research suggests that people who consume artificial sweeteners may unconsciously compensate by eating more calories elsewhere, particularly from refined carbohydrates, which could contribute to weight gain and increased diabetes risk.

Sweet Taste Preference: Regular exposure to intensely sweet artificial sweeteners may maintain or even heighten cravings for sweet foods—potentially leading to poor dietary choices overall.

The bottom line is that if you’re looking for a way to help control your blood sugar, artificial sweeteners aren’t the answer.

Phrases like “diet,” “no sugar added,” “low calorie,” and “sugar-free,” are a dead giveaway that the product contains artificial sweeteners. If you see any of those on the label, put it back on the shelf.

To satisfy your sweet tooth while supporting healthy blood sugar levels, try these alternatives:

• Fresh or frozen fruit
• Small amounts of natural sweeteners like honey
• Sparkling water with a squeeze of 100 percent fruit juice
• Herbal teas with naturally sweet flavors like cinnamon or vanilla

The key is moderation and variety. Gradually reducing your overall preference for intensely sweet foods and drinks—whether artificially or naturally sweetened—is the most effective long-term strategy for both diabetes prevention and overall health.

P.S. The WHO issues a warning against artificial sweeteners.

View Sources

Jia, Hejingzi et al., Association Between Artificial Sweetener Consumption and Risk of Incident Diabetes: The CARDIA study, Current Developments in Nutrition, May 2025, Volume 9, Supplement 2, 107034