There’s been stories for decades about how artificial sweeteners are going to give you cancer or whatever. I don’t know that I believe those stories, but I also don’t think they are necessarily a healthy alternative to sugar.
I did learn from my neurologist is that despite having no sugar, the sweetness can still cause the body to trigger an insulin spike. Zero calories doesn’t equate to zero impact.
Per doctor’s orders I completely cut artificial sweeteners out of my diet over a year ago. If I need a sweet and caffeinated beverage, I go for a Mexican Coke imstead. Without any other diet or exercise changes managed to lose some 25 lbs, so maybe there’s some truth to all of that. I’m certainly very skeptical of artificial sweeteners now. It seems like you really can’t get “zero calorie” without there being a catch.