Look at the diets of those that live to 100 for inspiration.
Just off the coast of Turkey, very close to Samos, where Pythagoras and Epicurus lived, is a Greek island named Ikaria that is renown as “the island where people forgot to die” because of the exceptional lifespan of its inhabitants. Included in what is referred to as the Blue Zones — five regions in Europe, Latin America, Asia and the US with the highest concentrations of centenarians in the world — the people of Ikaria live about eight years longer than average and have exceedingly good health.