Science in Sport do four sizes of their Rego Recovery Shake – sachets, 500g, 1kg, and 1.6kg tubs – in flavours such as vanilla, chocolate, and strawberry.  After a long run (over 2 hours), Rego Recovery does seem to wake me up a little more than regular water.

I’d recommend you prepare your shake in advance, because it’ll need quite a bit of shaking up to pound out all of the blobs of powder than can build up if you don’t take due care.  Once properly shook up, however, it’s a great drink – a little like a milkshake.

My favourite flavour is “Strawberry”, and that’s the one I’ve stuck with.