"We don't even need your stupid a-- that much. We can win Super Bowls with retired Kerry f------- Collins right now, and you want to be the highest paid player of all-time? F--- you." - Tical21 to Russell Wilson, 6/30/15
There shouldn't be much difference between the sides, the tongue works mostly on the edges for taste and the back, middle is almost useless. You can lose taste in parts of your tongue if you smoke, or have a virus or bacterial infection in your mouth. Strokes and tumors could also contribute but usually this causes foods to start tasting odd or off as well.