Is it merely the time of year and the festive temptations?
Or is it the first sign that the yoghurt is turning bad?
Consorting with bottles of wine. Fraternising with boxes of chocolates. Doing ...erm... unmentionable things with sugary confectionery...
Not the sort of thing you would expect from a supposedly healthy foodstuff!
What happens when a yoghurt goes bad? Does the probiotic turn antibiotic? Will the active ingredient go dormant and inactive? Will the strawberry turn to mush? Will the sourness turn sweet? ooh... Dannon!!!