Do Artificial Sweeteners Raise Insulin Levels?
Studies on artificial sweeteners and insulin levels have shown mixed results.
The effects also vary between different types of artificial sweeteners.
Sucralose Both animal and human studies have suggested a link between sucralose ingestion and raised insulin levels.
In one study, 17 people were given either sucralose or water and then administered a glucose tolerance test (9).
Those given sucralose had 20% higher blood insulin levels. They also cleared the insulin from their bodies more slowly.
However, results are mixed and other human studies have shown no effect (10).
Aspartame Aspartame is perhaps the most well-known and most controversial artificial sweetener.
However, studies have not linked aspartame with raised insulin levels (11, 12).
Saccharin Scientists have investigated whether stimulating the sweet receptors in the mouth with saccharin leads to an increase in insulin levels.
Results are mixed.
One study found that mouth washing with a saccharin solution (without swallowing) caused insulin levels to rise (13).
Other studies have found no effects (14, 15).
Acesulfame Potassium Acesulfame potassium (acesulfame-K) can increase insulin levels in rats ( 16, 17).
One study in rats looked at how injecting large amounts of acesulfame-K affected insulin levels. They found a massive increase of 114-210% (16).
However, the effect of acesulfame-K on insulin levels in humans is unknown.
Summary The effect of artificial sweeteners on insulin levels seems to be variable, and the results are inconclusive. It may also depend on the individual.
For now, no high-quality human trials exist, so we don’t definitively know their effects on insulin.
http://www.healthline.com/nutrition/artificial-sweeteners-blood-sugar-insulin