Despite the controversy around the safety of some artificial sweeteners, the FDA has deemed the following sweeteners safe to consume under certain conditions:
saccharin aspartame, which you should avoid if you have phenylketonuria acesulfame potassium (acesulfame-K) sucralose neotame advantame stevia sugar alcohols
According to the ADA, using artificial sweeteners in place of sugar to help sweeten foods without adding a lot of carbs every once in a while is most likely fine.
But they also caution that there isn’t much evidence that sugar substitutes will help with managing blood sugar or improving cardiometabolic health in the long term.