The truth behind 'tiger blood'
Over the past two weeks, Sheen has been speaking passionately about his love of tiger blood.
But unsurprisingly the drink isn't actually from the veins of an endangered species, it's actually mangosteen juice.
The red liquid has been sold by Utah-based company Xango since 2002.
The juice is made from mangosteens - a fruit which originates in South East Asia.
The mangosteen fruit is rich in xanthones - which promote healthy bodily function - and includes five grams of fibre.
Friends of Sheen claims he drinks a bottle every day.