Other than a couple of blurry pictures, she has not been seen in public since appearing with the other members of the royal family on Christmas Day, and in recent weeks social media has been awash with speculation about her health, generating global headlines and rumours.
In the video, which the Sun said was filmed on Saturday (March 16), a smiling Kate is seen, casually dressed, walking and carrying shopping bags alongside Prince William, at a farm shop in Windsor, near their home.
