Food Unwrapped is jetting off to find out the best foodie hacks, tips and tricks to help you feel great on your summer holiday. Jimmy Doherty discovers the truth about crash diets, reveals what it really means to stay fuller for longer and explores whether astronauts hold the key to weight loss. Kate Quilton delves into the multi-million pound collagen drinks market and looks into how shots of liquid claim to boost your skin’s appearance. Matt Tebutt travels to Valencia to explore Tiger Nut Milk – Spain’s secret summer-friendly superfood. And Dr Helen Lawal investigates whether popping weight loss pills can help summer slimmer.