John Vincent is co-founder of Leon, which now has more than 45 restaurants across the UK (and two in Amsterdam). He wrote the Leon Naturally Fast Food with Henry Dimbleby, Leon Family & Friends with Kay Plunkett-Hogge and Leon Happy Salads and Leon Fast & Free with Jane Baxter. He believes food has the power to delight, invigorate and bring people together. He thinks that our relationship with food should be positive and joyous and that we need to listen more carefully to our gut, eat more good fats, less sugar. And a whole lot more plants.Rebecca Seal writes for the Financial Times, the Evening Standard, the Observer, the Guardian, Olive and Waitrose Food. Her cookbooks include Postcards from Greece and Istanbul: Recipes from the heart of Turkey. She is one of the food and drink experts on Channel 4's Sunday Brunch.