Alicia Silverstone
The Clueless actress was not clueless at all when she stopped eating meat at the age of 21. As an actress, veganism has not only given her clear skin, but also kept her weight in check. Her son is also vegan as well. But her love for veganism is so high that she even published a vegan cookbook in 2009 called The Kind Diet.
Source
//people.com/food/alicia-silverstone-son-bear-blu-vegan-diet/