A bit bloated after Christmas? Got the January blues? Kick off 2018 with a health boost from Jimmy Doherty, Kate Quilton, Matt Tebbutt and Dr Helen Lawal as they share surprising tips for staying healthy, and little-known ways of getting body and mind back on the rails through food. In Hollywood, Jimmy tries the latest trend that's like something from a sci-fi movie: meal replacement drinks, apparently so packed with nutrients that they're all you'd ever need to consume. Kate investigates whether a weight-loss superpower is hidden in curry. Matt hunts for the ultimate diet snack and looks into whether low-calorie rice cakes are as nutrient-dense as other tasty alternatives. And Helen heads to Tanzania where the Hadza tribe's unique diet could reveal how to stay healthy and maybe even happy!