More than 75% of popular takeaway and restaurant food is unhealthy, study finds

Pret a Manger's ham and greve baguette was judged as having too much salt, saturated and total fat and too many calories. Photograph: Pret a Manger

More than three-quarters of the bestselling dishes sold in high street takeaways, restaurants and coffee chains are unhealthy, as judged by government guidelines, a new study reveals.

Popular products such as pizzas, burgers, chicken dishes, fries and baguettes contain dangerously large amounts of fat, salt, sugar or calories that can damage health, the researchers say.