A link between highly processed foods and cancer has been suggested by French researchers.
They classified foods including cakes, chicken nuggets and mass-produced bread as “ultra-processed”.
A study of 105,000 people hinted the more of such foods people ate, the greater their risk of cancer.
A lot of caution is being expressed about the study, but experts said a healthy diet is best.
What counts as ultra-processed?
Mass-produced packaged breads and buns
Sweet or savoury packaged snacks including crisps
Chocolate bars and sweets
Sodas and sweetened drinks
Meatballs, poultry and fish nuggets
Instant noodles and soups
Frozen or shelf-life ready meals
Foods made mostly or entirely from sugar, oils and fats
Diet is already known to affect the risk of cancer.
Being overweight is the biggest preventable cause of the disease after smoking and the World Health Organization says processed meat does slightly increase the risk of cancer.
But what about ultra-processed foods?
The team – at Universite Sorbonne Paris Cite – used food surveys on two days to work out what people were eating.
Those on the study, who were mostly middle-aged women, were followed for an average of five years.