Michiko Ono and Masaru Nishimori are both in their 80s, have never suffered a serious illness and deal with the Japanese capital's city heat better than their interviewer
Japanese people are more likely to reach 100 years old than anyone else in the world, a fact that some researchers attribute to their diet. So, are they right – and is eating tofu and squid the place to start?
Government guidelines say smoothies contribute up to two portions of fruit and vegetables, but Tesco's new range claims to contain three. Who is right?