GMOs – how does your supermarket stack up?

Is your supermarket standing up for a GMO Free UK – or is it complicit in the adulteration of our food supply?

September 9, 2014 by Pat Thomas

Photo: Bigstock

Although we like to think of the UK as being completely GMO free – the truth is that GMOs have started to slip into our shopping baskets without many of us really knowing about it.

For many years supermarkets complied with the wishes of their customers and went out of their way to source dairy, meat and eggs that did not come from animals fed on genetically modified feed.

But in 2013, one by one, the supermarkets changed their policies. Morrisons and Asda were the first to allow GM-fed animal products onto their shelves and Tesco, Sainsbury’s, the Co-op and Marks & Spencer quickly followed suit.

Waitrose poultry remains GM-free – but not its pork. And of course organic brands, have remained firm on their GM Free commitment.

Despite consumer opposition, supermarkets say there is not enough non-GM feed to allow them to source GM-free animal products. Non-GM soya providers in Brazil continue to assure us that there is plenty available, but the supermarkets are not listening.

What is more shortly after the UK supermarkets caved-in 12 supermarkets from across Europe signed the Brussels Soy Declaration, affirming that they want EU consumers and farmers to have a choice to eat and use non-GMO soya.

In other European countries such as Germany, France, Luxembourg and Austria there are Government-sponsored voluntary labelling schemes in place for non-GM-fed meat, milk and eggs. This means consumers can choose to buy non-GM-fed products. Most recently Wiesenhof, the largest German poultry producer, has announced that it will return to using non-GM animal feed due to consumer demand.

If you buy organic meat, milk and eggs you can also be assured that it has been produced using non-GM feed. From 2012 GM-fed meat, milk and dairy products in Turkey were labelled and in Sweden, GM feed is no longer used, thanks to consumer pressure. 

The UK, however, is marching grimly on towards a GM-fed future.

Bad for everybody

Our supermarkets justify their change of policy by claiming that there are no health risks associated with feeding GMOs to animals.

But even the UK Food Standards Agency now acknowledges that the genetic material from GM animal feed does survive to pass through and from the gut. This is something that, just a few years ago, researchers said could not happen. Now scientists are scrambling to see if this genetic material is active in humans, while campaigners are asking the not unreasonable question: shouldn’t you have figured that out BEFORE we ate it?

Far from being completely harmless, new research shows that GM in animal feed causes health problems like hormone disruption and gut inflammation in the animals that have been fed concentrates that contain it.

From a health perspective this is an important issue. Retailers and regulators are often acting on old, out-of-date evidence to make decisions about our future.

We need to remember also that there are detrimental consequences of growing GM on ecosystems, biodiversity and human health, due to the increased volume of pesticides that go hand in hand with GM agriculture, and the genetic pollution due to cross pollination of GM with non-GM species.

Whichever way you look at it, GMOs are a problem.

Not good enough?

The chart below shows how the major UK supermarkets compare when it comes to hidden GMOs.

Many supermarkets are cagey when it comes to questions about GMOs in their products. They may say that they don’t sell any foods that are made from GMOs or that any foods they do sell are clearly labelled (which is required by EU law anyway). Many will state that some or all own brand products are GM free. But own brands only account for around half of supermarket sales. In addition, few supermarkets have methods in place to trace the source of animal feed that goes into their products. Read their websites and they will often tell you that they can’t guarantee animals are not fed on GMOs.

(UPDATE: as of 2016 only Waitrose has made a firm commitment to replace non-sustainable Brazilian GM soya feed with sustainable non-GM EU soya by 2020).

Click to enlarge


If you don’t think this is good enough, then let your supermarket know.

People who want to be GM Free are also shoppers who want to be GM Free. So why not send your supermarket a link to your GM Free Me page along with your concerns about GMOs. Or why not post your GM Free Me picture straight to their twitter page (there are share buttons to make all this easy for you).

The sooner that supermarkets realise there is an active market for non-GMO products the sooner they will remove the hidden GMOs from their shelves.

If you choose to call your supermarket to find out more, remember helplines are often staffed by people who don’t know or don’t know how to find out about the supermarket’s GMO policies. We have heard reports from colleagues that calling on consecutive days can yield completely conflicting information.

For a definitive answer, writing is always best. So write to your supermarket and if you get a response, please send us a copy!

In addition to writing to your supermarket please sign the Mums Say No to GMOs petition asking supermarkets to label GMO-fed animal foods. You may also wish to visit our colleagues at GM Freeze to learn more about their Feed Me the Truth campaign.


  • Managing Director UK and Ireland Holly Lane, Atherstone, Warwickshire CV9 2SQ
  • Customer services no email, phone 0844 406 8800
  • Twitter @AldiUK
  • Web


  • Chief Executive Asda House, South Bank, Great Wilson Street, Leeds LS11 5AD
  • Customer services email from here or phone 0844 481 5000
  • Twitter @asda
  • Web


  • Chief Executive Booths Central Office, Longridge Road, Ribbleton, Preston PR2 5BX
  • Customer services email from here or phone 0800 221 8707
  • Web



  • Chief Executive Food Retail The Co-operative Group, New Century House, Manchester M60 4ES
  • Customer services email here or phone 0800 0686 727
  • Twitter @TheCooperative
  • Web


  • Chief Executive Second Avenue, Deeside Industrial Park, Deeside, Flintshire CH5 2NW
  • Customer services email from here or phone 01244 842842
  • Twitter @IcelandFoods
  • Web


  • UK Director 19 Worple Road, London SW19 4JS
  • Customer services email from here or phone 0870 444 1234
  • Twitter @lidl
  • Web


  • Chief Executive Waterside House, 35 North Wharf Road, London W2 1NW
  • Customer services email from here or hone 0845 609 0200
  • Twitter @marksandspencer
  • Web


  • Chief Executive Hilmore House, Gain Lane, Bradford BD3 7DL
  • Customer services no email, phone 0845 611 6111
  • Twitter @Morrisons
  • Web


  • Chief Executive 33 Holborn, London EC1N 2HT
  • Customer services email from here or telephone 0800 636 262
  • Twitter @sainsburys
  • Web


  • Chief Executive New Tesco House, Delamare Road, Cheshunt, Hertfordshire EN8 9SL
  • Customer services email here or telephone 0800 505 555 (or 0845 7225533 for groceries dept)
  • Twitter @UKTesco
  • Web


  • Managing Director Waitrose Central Offices, Southern Industrial Area, Bracknell, Berkshire RG12 8YA
  • Customer services email here or telephone 0800 188 884
  • Twitter @waitrose
  • Web


 Please note we update the information in this article occasionally. See our website and also the Beyond GM website for more news and stories.

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