Pet owners are today being warned to steer clear of so called ‘unproven remedies’ after concerns were raised by a top vet about things such asraspberry leaf tablets.

Dr Wedderburn said to exercise caution, because his colleagues who specialise in herbal pet remedies have some reservations about raspberry leaf.

“Apparently a researcher in the United States has noted a possible connection between raspberry leaf and the need for a Caesarean section,” he explained, adding that keeping the pooch at a healthy weight and ensuring she has a good diet and exercise may be a more effective plan of action.

Sources appear to be divided when it comes to the effectiveness of raspberry leaf and its ability to induce labour in humans.