Victoria Beckham is known for eating a restrained and simple diet, reportedly favouring salmon and vegetables.However, after a night's drinking, she obviously relaxes her dietary rules, as she revealed on Sunday that her favourite hangover cure is something sweet!MORE: David Beckham shares surprise relationship milestone with wife VictoriaThe fashion designer took to Instagram stories, where she wrote that her favourite remedy for a hangover is a large fizzy drink.The former Spice Girl posted a photo of a 'super large' Big Gulp container in extra large which she appeared to be holding while sitting in her car.WATCH: Victoria Beckham looks unreal in daring bodycon mini dressVictoria captioned the snapshot: "Can't help it when hung over!" She then added: "Seven Eleven!!!!! BIG GULP!!" She didn't reveal her exact choice of drink, but it's safe to say she found it refreshing.SEE: Victoria Beckham looks exactly like son Romeo in childhood throwbackMORE: Victoria Beckham shares sweet post from 'whole family' - but son Brooklyn's mention is missingVictoria previously shared photos of her night out with friends and family including some with her son Cruz, 17, and daughter Harper, 11, as well as close friend Eva Longoria. The star shared her hangover cure to InstagramThe gang appeared to be having fun, and Posh and her husband, retired footballer David, had clearly earned a good time.