Picky eaters may be super-tasters, but it's not necessarily the case. I know people that claim that is why they are picky, but they will eat things that a true super-taster wouldn't touch, while claiming that their "super-tasting" is what makes them not eat something that has nothing to do with the mutation.
I''m curious about the 'things a true super taster wouldn't touch' part of this comment - surely this wouldn't be the same for every person? If you're a super taster you have a much more acture sense of taste than most people, but like anyone else you still have your own individual likes and dislikes.
For instance - my sister is a 'super taster' - she has an incredibly acute sense of taste and can identify even a tiny amount of something in a dish. The effect of this is that if a dish has even the smallest amount of something she doesn't eat, it makes the whole dish inedible (she can't just pick out the offending items as the taste with 'taint' what is left. One of the things she can't eat is mushrooms.
However, she is quite an adventurous eater and likes some things which you might think someone with acute sense of taste would not like - strongly spiced foods, hot curry etc. She is fine with those provided that they don't contain any of the specific things she can't eat, such as mushrooms or cinnamon.
She seems to have inherited the 'super taster' ability from our dad, (although his is much less acute now, as he has almost lost his sense of smell) but the specific things it applies to are different - my sister can't bear mushrooms - my dad loves them. My dad cannot eat raw tomato (literally cannot. it triggers a gag reflex) or cheese. My sister loves both.
The SS picky eaters reminded me of a child who went on the same overseas school trip as I did, once. She was about 12, and would not eat anything which wasn't exactly the same as what she had a home,to the extent of being unwilling to eat the chips (fries) because they weren't the same size as the ones her mum made. It turned out that she was also horribly homesick. She had never (and I do mean never) spent a night away from her own house and parents - she'd never even had a sleepover at a freind's house, or stayed with relations. It got to the point where the school was on the verge of sending her home early on health grounds, although she did start eating when she was told that that would happen. I'm not sure that I'd class her as a SS, as I think she was mostly just horribly homesick and out of her depth, but I did think that her parents were a bit daft, to have sent her abroad, for a week, when she'd never spent a night away from home before...