What is the Okinawan diet?

With a high proportion of centenarians in its population, the Okinawan diet gets lots of interest. It focuses on low meat consumption and an emphasis on soy foods like tofu.

What is the 5:2 diet?

Food is limited to 500 to 600 calories a day on two days of the week. The other five days you’ll eat a normal diet with a focus on high-protein, high-fiber foods.