Fox, 27, was photographed in La wearing skinny black pants along with a loose gray T-shirt. By her slim figure, it's difficult to tell the brunette beauty was recently pregnant. But given Megan's history, her quick weight loss isn't surprising.

This season, Fox regained her slender pre-baby body just 8 weeks after giving birth to her first son, Noah. Megan gained just 23 pounds during her first pregnancy and shed the load quickly by 3 day fit diet pills using a dairy-free diet.

Im not wanting to eat dairy, thats my biggest secret," Fox told Hollyscoop. "Its very hard in your hormones and its bad. In order to gain weight, eat dairy. Should you dont, dont eat it."

Megan is reportedly a follower from the low-carb Paleo diet, which emphasizes high-quality animal proteins, healthy fats, vegetables and fruits, and excludes gluten, sugar, dairy, legumes, starches, alcohol and fast foods.

The low-carb Paleo dishes are the most popular diet around today, and it has an enormous celebrity following, including Tim McGraw, Matthew McConaughey, Jessica Biel, Kellan Lutz, and supermodel Adriana Lima.

Proponents the Paleo diet quick weight loss, lowers blood pressure levels, and prevents cancer, diabetes, brazilian 7 days slimming coffee cardiovascular disease, depression, and Alzheimer's.

Fox's longtime trainer, Harley Pasternak, credited Megan's workouts during being pregnant for her speedy post-baby weight reduction. "We exercised throughout her entire pregnancy," Harley told People. "She would be a model of health through the whole process."