HOME The secret to Katy Perry's good health is not what you would expect The 'Bon Appétit' singer has used this product since she was a child Galería: 3 Fotos Volver a la noticia 1/3 © iStock In addition to being a great source of vitamins A and B, apple cider vinegar contains the most important fatty acids. It also has minerals such as calcium, potassium and iron — among others. 2/3 © Getty Images The couple share a fondness for holistic and alternative methods to maintain health. Their philosophy is: a couple that takes care of health together, stays together. 3/3 © iStock Katy Perry has expressed her passion for apple cider vinegar's benefits. She says that she drinks it in its purest form, at least three times a day. More about: Katy Perry Beauty Trends