The 10 best model reinventions

With Cara Delevingne making her acting debut in Michael Winterbottom’s new film, we look at other models who have gone on to excel in other fields

Is being vegan the most ethical way to live?

Reducing meat consumption is important, but going vegan may not solve all our problems…

If you have an ethical dilemma, email Lucy at lucy.siegle@observer.co.uk

Van Gogh’s fading Sunflowers… and other tales of decaying art

Supposed damage to Van Gogh’s paintings is minimal, but other masterpieces by Leonardo and Duchamp et al are showing the ravages of time

The 10 best art patrons

As a new show at the National Gallery explores the influence of Paul Durand-Ruel, the dealer who ‘made’ the impressionists, Rachel Cooke highlights other great patrons and collectors

The truth about ‘miracle foods’ – from chia seeds to coconut oil

Cancer, diabetes, heart disease, dandruff… can these things really be cured, or at least prevented, by what we eat?

Is wearing fur morally worse than wearing leather?

Both industries have questionable ethics – and even faux alternatives aren’t necessarily green, says Lucy Siegle