Thanks for those articles, Whispersarah, and thanks for the info about diabetics Expat and Stella. All interesting information.
My MIL didn't notice it so much, as she never had a sweet tooth so she just stuck to her usual hot tea w/no sugar.
But FIL has a massive sweet tooth and so was eating the artificial sweetners to appease that.
He really started to notice how they set his blood sugar off, however, once he had to go on injectible insulin.
Poor soul!
I've got a very nice sugar free banana cake to try for him tonight w/a cream cheese frosting - you whizz fruit spread in it.
And he now regularly quaffs water w/crushed fruit and mint leaves. It's really nice, especially in this weather. So is sparkling water w/cucumber and lime slices. MMMmmm.