Beyonce and Jay-Z have pledged to take on a plant-based vegan diet for the next three weeks, the rapper announced on his website, Life + Times.
"Psychologists have said it takes 21 days to make or break a habit. On the 22nd day, you've found the way," Jay wrote by way of an introduction.
As of December 3, "I will embark on a 22 Days challenge to go completely vegan, or as I prefer to call it, plant-based!" Bey's husband continued.
This began, he said, when a vegan friend "challenged me to embrace a 'plant-based breakfast' everyday. It was surprisingly easier on me than I thought..."
That friend was Marco Borges, an exercise physiologist and founder of 22 Days Nutrition, a vegan, organic, and gluten-free food and lifestyle company.