When I was researching food additives years ago in university, for a paper, a lot of what I found was about aspartame specifically (e.g. a study where aspartame was put in water for rats, and they ate more food than the rats given regular water). But I wonder if this is aspartame-specific, and what effects other sweeteners have under the same conditions.
For instance, would stevia have a similar effect? It's a naturally occurring resource, and logically people may have eaten the plant traditionally (I don't know much about stevia)... did those people eat more, or gain weight? Would they today?
I avoid the artificial stuff, but I may also consider avoiding things like stevia because it seems like even if people eat the plant, they probably did so in small quantities... the way it's extracted, and the way ANY sweeteners are added to foods in bulk is kind of disturbing...