Delayed: the food study that could cut prison violence by ‘up to 40%’

The Home Office has been accused of delaying new research that aims to reduce violence by 40% in Britain's overcrowded prisons by improving prisoners' nutrition.

Overeating by obese people is like drug addiction, brain research finds

· Study offers new insight into weight problems· Compulsion to eat driven by emotion, say scientists

Mass medication with Omega 3 would wipe out global fish stocks

Our children need their fatty acids, but after we have fed our stocks to cattle and pigs there simply aren't enough left, says George Monbiot

Throw away your Omega 3!

Sarah Boseley: Another wonder supplement bites the dust.

DNA damage from eating red meat linked to cancer

· Harmful compounds raise risk of bowel disease · Volunteers fed diet heavy in beef and pork

Choices, choices: Potatoes

Chips v roast potatoes