For the most, when it comes to what they drink, people in Blue Zones drink water, teas and wine.".
He advocates for a diet based on Blue Zones - which are areas of the world where people typically live long lives and surpass the age of 100.
Dan Buettner, an American longevity researcher, said: "It is not natural for humans to be drinking the milk of another animal any more than it would be to see a dog suckling a pig.
He said that people in these areas - such as villages within Japan, Greece, Italy and Costa Rica - often only drink three things.
Teas also boast a variety of natural health benefits - and there are dozens of varieties beyond traditional breakfast tea.
