At the same time, food systems are responsible for one-quarter of all greenhouse gas emissions ... if these contributions are to be realized. Blue foods — animals, plants and algae harvested ...

In it, he picks out some of the key foods he's enjoyed learning about ... Again, a key principle of all Blue Zone diets is they tend to be very low sugar. ... and enjoy a glass of wine with ...

But in nature, blue food is rare. Food manufacturers use chemicals to dye foods blue. However, these can have negative side effects on humans. Many plants are typically naturally coloured by four ...