Is Cola Worse For You Than Beer?

So I have given up alcohol. But what are you supposed to drink when at the pub watching sport?

I tried Coke. 3 pints of coke is a bad idea. Sugar high, the shakes, having to get off the train halfway home to take advantage of the wonderfully clean facilities at New Cross train station...

Surely that's worse than the effect of 3 pints of beer on my system?

I guess I could try fruit juice. In an ideal world every pub would serve tea of course...