My sweet receptors have become a lot more sensitive as well. I'm started to pick up some seemingly odd tastes, I'll eat lemon rinds for example but my face grimaces in reaction to the juice, not because of the acidity but because it's like liquid sugar. A lot of it has to do with how your brain is getting used to different tastes being associated with "nourishment".
"You can demonstrate the purpose and limits of human digestion with a simple experiment: eat a steak with some whole corn kernels, and see what comes out the other end. It won’t be the steak."