Both cause the sensation of sweetness without significant calories. They’ve both been absolved of any negative physiological effects, however, it turns out that when you taste sweetness you increase your disire to eat. So they may not be as effective as we hoped at reducing calorie intake.
On another note, concentrated oral sucrose is used as anesthesia/analgesia in newborn circumcisions and other procedures.
....and it works very well for about the first month of life! It isn’t effective in a small minority of infants, and I’m curious as to why not. I would think it was a genetic difference.
I don’t have the expertise to evaluate these sites, but the following at the first site caught my eye and made me suspicious “Modern nutrition experts, including Andrew Weil, ...”