By Karen Borsari
April 01, 2011

Complied on Friday, April 1st

Happy April Fool's Day! We've rounded up the craziest fitness trends that aren't April Fool's Day jokes for your reading enjoyment. Will you be riding a mechanical bull for core strength any time soon? One celeb who may not be riding a bull of steel in the near future but may be whisked off her feet by the Man of Steel is Amy Adams. This week, director Zack Snyder announced that Amy Adams will be the new Lois Lane in Superman: Man of Steel out December 2012.

Until recently veganism may have been as mysterious as Superman's powers but this celebrity diet is moving into the mainstream. Check out these nine slim celebs who count on a vegan diet to help them stay in top shape. Whether you're vegan or not you can be your own healthy chef with these healthful cooking tips from the Top Chef All Stars. Another way to stay fit and show your love of animals is to hit the road with your pup. Check out these celebrities showing their puppy love while out and about with their adorable pet pooches.

More hot stories this week:

Obesity Stigma Grows Around the World

-Fit Sugar

-That's Fit

-New York Times