Could eating more fat boost health?

Advice to eat more fat is irresponsible and potentially deadly, Public Health England's chief nutritionist has said.

Dr Alison Tedstone was responding to a report by the National Obesity Forum, which suggests eating fat could help cut obesity and type 2 diabetes.

The charity said promoting low-fat food had had "disastrous health consequences" and should be reversed.

BBC's Sophie Hutchinson reports.