Experts say a fifth of U.K. meat consumption is by pets, not people. If Fido eats lab-grown meat, they say, it could cut the country's carbon footprint.

Dog treats made from lab-grown meat have gone on sale in the UK, in what the manufacturers say is a world-first. Chick Bites are getting a limited release at a single pet store from Friday, but Meatly says it is expanding production and hopes to make its lab-grown meat more widely available as it scales up production.

As the world's first cultivated meat-based dog treats are launched, Hannah Twiggs looks at how long it will be before humans are sold sci-fi steak and asks if this high-tech food fix is really what its cracked up to be?