It's National Avocado Day and we are celebrating all the ways we can use the fruit. Containing nearly 20 vitamins and minerals, it's no wonder why celebs such as Oprah, Zac Efron and Chrissy Teigen turn to avocados for a tasty nutritional treat. Take a look at some of their favorite ways to whip up the superfood and check out the tips our friends from Avocados from Mexico gave us to pick the perfect one.