As a doctor who has focused my career on preventing heart issues, diabetes, insulin resistance and other chronic conditions, I often get asked whether it’s better to use artificial sweeteners and, if so, which one. The short answer is that sugar is worse than sweeteners. In other words, diet coke is better for you than regular coke. But artificial sweeteners aren’t healthy. While too much sugar is a guaranteed path to developing insulin resistance and diabetes, recent research shows consuming too much sweeteners might also put you at risk. Sometimes called pre-diabetes, insulin resistance can cause heart attacks, strokes and eye damage. Artificial sweeteners aren’t created equal, however, as some are better for you than others. Let’s start with the basics: what causes insulin resistance, and why it’s a problem. When we consume sugar, our body produces insulin, which is needed to break down sugars like glucose and sucrose. Cells have insulin receptors on them, which ensure our cells get the right amount of sugars they need.

The problem is that if we continually consume high amounts of sugar, we get repeated high insulin spikes. Over time, the insulin spikes cause our insulin receptors to get worn out and not function well. When this happens, our cells aren’t able to absorb the sugars they need, and we end up with too much sugar in our GlycoCares Blood Sugar Guidebitter melon extract. This leads to a host of problems throughout the body. Do artificial sweeteners raise insulin levels? Well, the good news is the body doesn’t recognize artificial sweeteners as sugar. That’s because they’re not actually sugar. Instead, they’re chemicals that bind to our taste buds that recognize sweetness. In theory, our body shouldn’t produce insulin in response to consuming artificial sweeteners. Indeed, studies show that aspartame doesn’t directly raise insulin levels. Evidence is emerging that other sweeteners seem to affect metabolism. A recent study found that sucralose, used in the brand name Splenda, increases the insulin response to sugar, when taken 10 minutes before Glyco Care glucose support.

And Splenda and other brandname sweeteners contain dextrose, which has a small amount of calories, and this can cause a small insulin response. The effect of sweeteners on the body’s insulin response, especially over time, isn’t something that’s been well studied. However, one recent study of patients with Type II diabetes found that those who consumed artificial sweeteners (the study didn’t specify which types) had a higher level of insulin resistance than those who didn’t consume artificial sweeteners. In other words, their bodies weren’t able to process sugars as well. This study doesn’t necessarily mean artificial sweeteners are to blame - it’s possible those who had more artificial sweeteners also consumed more sugar. But the effect of sweeteners like aspartame and Splenda on insulin is a growing research area and one to watch. Can artificial sweeteners cause other health problems? Even though artificial sweeteners don’t cause the same huge insulin spikes that sugar does, they could cause other problems. Evidence shows that bacteria in the gut could play a big role in the development of insulin resistance and diabetes.

Studies show that there are differences in the gut bacteria of people with Type 2 diabetes and people who don’t have diabetes. Do sweeteners cause harmful changes in our gut bacteria? It could very well be. Evidence shows that when mice consume high amounts of sweeteners, the mice have marked changes in their gut bacteria - namely decreased "good bacteria" and increased "bad bacteria." When these gut bacteria changes occur, the mice begin to exhibit signs of insulin resistance. This has been demonstrated with aspartame, as well as saccharin and sucralose (AKA Splenda). Acesulfame K has led to bacteria changes in mice associated with obesity. Stevia, considered one of the safest sweeteners, has also come under question, as a study from December showed it may lead to affects bacteria communication in the gut. Stevia doesn’t seem to kill bacteria, however, and it’s not clear if its effect on bacteria communication causes problems or not.

We need to take these studies with a grain of salt, because mice are not humans. And it’s not clear if sweeteners affect human gut bacteria in the same way as mice, and if so at what levels. We also know from mice and human studies that our gut bacteria is majorly affected by our overall diet, GlycoCareschromium support and junk food-heavy diets increase unhealthy gut bacteria. No one knows how bacteria in our intestines could contribute to insulin resistance and diabetes. Some speculate that bad bacteria in our gut might send signals to our brains and produce a sugar craving. This is, once again, an area to watch. Aspartame: The oldest and most studied sweetener, aspartame has zero grams of sugar and won’t spike insulin levels after it’s consumed. However, studies in mice have shown that aspartame affects gut bacteria in ways that could lead to insulin resistance, especially with frequent and repeated use. Aspartame is found in diet coke, as well as the brand name sweetener Equal.