She refers to JW Armstrong, who fasted on his own urine and water for 45 days, and recommends massaging yourself with urine and even using it as an eye and ear drop.

Urine baths, she says, are beneficial and refers to the women who took urine baths in eighteenth century France.

Indeed, pop star Madonna once claimed to swear by the gross ritual.

Speaking on the David Letterman show, she said: ‘Peeing in the shower is really good, it, it fights athlete’s foot.