I think its generally a good thing to do however I feel that the store itself has a lot to learn and demonstrate in respect of appropriate storage of food which it might want to consider in any presentation or promotion of 'healthy eating. As a parent of a Fairlawn child therefore I think Sainsburys own house should be put in order before going out and spreading the word amongst local schoolchildren. I can think of three fairly recent examples which are less than 'healthy' but more likely to put the consumer into hospital and which I have had to point out to the store staff,some who didnt really get the point;

1) When an ice cream freezer fails, please do not empty the icecream into the cold store room where the products defrost overnight and then put them back into the freezer the next day to refreeze.Many of these products do carry do not refreeze wordings and many contain dairy products. These are not meant to be defrosted and frozen again.

2)When putting out raspberries for sale, please check to see whether the entire stock is covered entirely thick with blue fungus,and dont wait for a customer to point it out. We were not talking about a few here, we were talking about your entire stock of raspberries around 20 punnets some time in early 2012. Taste the Difference .Indeed.
Photos to follow when I can work out how to put them on here.

3) Its not a good idea to put frozen prawns in the unfrozen prawns section of the store. These were prawns that were meant to be defrosted under controlled conditions before sale,and not in someones frying pan. They were frozen solid.Someone, just as I nearly did, will come along,unwittingly buy them to chuck into a stirfry that evening and most probably end up in hospital. Trying to explain the subtle difference to the staff on duty fell on deaf ears it would seem.

I wont mention the putrid chicken returned so many times to Bell Green, as that is a different store,albeit one with food storage issues of its own but Ive had to do that on around 5 occasions in the last 3 years.

I'm as committed to the health of local people as you claim to be, so please Sainsburys, try and take a leaf out of your own book, follow food storage guidance, train your staff, and develop some reliable way of monitoring the quality of what is being put out for sale.