In Japan, he'll harvest and eat seaweed, which is packed with immune system boosting iron. And in Costa Rica he'll explore the locals' love of fruit – is this why they live so long?
On the menu is baked eggs with cherry tomatoes and ricotta on toast, tasty miso, chicken and mushrooms with wild rice, and sizzling prawns with veg and salsa. Yummy!
Jamie's Super Food, Channel 4, 8pm
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