I’m a Japanese nutritionist and I visited a Costco in Japan: 6 'longevity foods' I couldn't leave without—the selection was 'incredible'

There are over 900 Costco locations worldwide. On a recent trip to Japan, longevity expert and nutritionist Michiko Tomioka visited a warehouse in Kyoto. From a variety of seaweed and tofu to ready-to-eat meals, here's what she wishes they sold in the American stores.