Stevia and aspartame.
Lynn S of Reflections in d minor informs about stevia, a natural herb that works as a non-fattening sweetener. For some reason no one has heard of it. (*) (†)
Nutrasweet is a brand name for a sweetener that contains aspartame. Aspartame has been criticized as being a neurotoxin. (‡) (§) (**)
I do not know if the criticism of aspartame is accurate. Perhaps it should be compared with sugar and with stevia.