I carry a sachet of dioralyte but I've never had to use it.
I've had to use it whilst in South America, to try and re-hydrate when suffering from a ten day bout of dysentery, it tastes fowl.
Is it chicken or duck flavoured? Sorry, couldn’t resist.
+ 2 and I have used them. Mine were blackcurrant flavoured which made them a tad more palatable.