The Healthy Living Club has sent me, in my first mailing from them:

Double points on your entire shop
150 points for £6 on Healthy Living products
30 points for a box of Shreddies!
25 points for a Weight Watchers Soup in a Cup!
100 points for £3 on fresh fish
and the free Nivea lip balm!

It certainly seems worth signing up if you haven't already done so.