Genes are the latest trend in nutrition, at least going by the burgeoning  legion   of Internet companies offering diets tailored to our genetic make-up.  These services are relatively affordable and simple to use.

For the first time in its history, the Global Seed Vault on the Svalbard Islands, Norway, has authorised a withdrawal. It was requested in 2015 by Syria, a country where the war is endangering the local agricultural seed collections.

Peanut, egg and soy are more common food known to trigger an allergic reaction, a problem affecting around 8% of children in the EU. Intuitively, you might not list apples as causing allergic reactions.