I remember one of those super old lady, they asked her what was her secret to live so long, and she said that she was eating 3 eggs per day
after that day i started eating 3 eggs a day as well, now i feel more fuller in the morning
It will work with some people, and will not work with someone else. In the Caucasus region of the former Soviet Union, there was a man called Shirali Muslimov (died in 1973), who claimed that he was 168 years old. Some Russian researchers also confirmed his claim, from the census records. He claimed that yoghurt was the secret for his longeivity. The Danone company made a lot of publicity about it, to sell their yoghurt products.
The matter of longevity in the Caucasus region has been investigated thoroughly. It turned out that people living there tend to add years to their real age, since the older they are, the more respect they get in the society. Regarding that elder who allegedly lived up to 168 years old, you should remember that the Caucasus region had been an arena of ferocious warfare through the whole 19th century (and well into the 20th), so I doubt that there can be reliable sources of census data that old...