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The Hunza diet consists of a series of selective food and drink intake practiced by the Hunza people of northern Pakistan that is argued by some to be unique and have long lasting effects. The diet mostly consists of raw food including nuts, fresh vegetables, dry vegetables, mint, fruits and seeds added with yogurt. The cooked meal, daal included with chappati, is included for dinner. It has also been advocated for being inexpensive and mostly self-producible. The Hunza lifestyle was referenced in the Biorhythm Calendar published by the American Health Institute in the later 1970s.
The Irish physician Robert McCarrison is believed to have traveled to this area during the days of the British Raj and tested this diet on rats in England. The results are claimed to have given the rats longer lasting lives. In his book about the Hunza, Jay Hoffman argued that by the ratio to cats, dogs and horses, humans should live up to 120 to 150 years and argues the Hunza diet to be the key to this longevity.