Diets which cut out dairy food could be a "ticking time bomb" for young people's bone health, a charity is warning.

A National Osteoporosis Society survey found a fifth of under-25s are cutting out or reducing dairy in their diet.

It said it was concerned many young adults were putting their health at risk by following eating fads.

Cutting out dairy can be healthy if enough calcium is consumed from other sources, such as nuts, seeds and fish.

The charity surveyed 2,000 adults, including 239 under the age of 25 and 339 aged 25-35.—Radio Pakistan