
Carla Birnberg, AKA MizFit, is an award winning writer, community builder, personal trainer, and bodybuilding competitor.
Ive been a blogger since 2001, and launched MizFitOnline in 2007 to share health and fitness knowledge with those who might not have access to one-on-one training.
As a result of my online personality and background in counseling, I’ve gained attention of publications like Women’s Day, Fast Company, Wall Street Journal, Experience Life, Fitness Magazine, ivillage.com, Glamour, Women’s Health, Fitness, Yahoo!, Yahoo!Shine, and Runners World.
I was also profiled in Susan Getgood’s book: Professional Blogging For Dummies.
I was identified by Entrepreneur.com as one of ten individuals who exemplify the ability to create a strong personal brand, named as one of Five Favorite Fitness Blogs by Athleta® brand and voted one of the Top Five Fitness Blogs by Shape Magazine®.
I was chosen by Eyeopener TV as the blogger to launch their Blogger of the Week segment, by FitFluential to serve as their first Ambassador Spotlight and named a Transform Your Workout fitness expert by Café Mom alongside BRAVO TV’s Jackie Warner and The Biggest Loser’s Alison Sweeney.
I’m a Sears Fit Club brand partner , sits on the Life…Supplemented™ social media advisory board and provides content as a blogger, serves as an Attune Foods brand ambassador, an Egg Beaters® brand ambassador, and is a member of ConAgra’s Shared Tastes Panel.
I’m a member of the five-person national social media team for Lifetime Fitness®. As part of Team #LifetimeFITSme she promotes health, fitness, & family via Twitter, Facebook and Instagram.
My motivational videos can be found at Shape.com and I’ve been named one of 15 Fitness Gurus You Need To Follow On Twitter by Shape Magazine alongside Jillian Michaels and Oprah’s trainer, Bob Greene.
I was voted one of Austin’s Fittest Moms, selected People’s Choice in the Fila Real Women model casting call, chosen to be one of the first group of Fitfluential ambassadors and named one of the Top 10 Most Influential Females in Fitness.
Most recently I was named Fila brand’s first Spokesmom , asked to serve as an expert fitness consultant for Clinique® online and deemed top ten fitness blogger by the social media evaluation site KRED.
In my “spare time,” I juggles fulltime motherhood, filming motivational/exercise videos, crafting irreverent tweets, recording a biweekly podcast all without breaking a sweat….and, when I do, I simply call it cardio.
My health motto (& life motto) is …fitness isn’t about fitting in. I believe we may all have the same goal of living a longer, healthier more vibrant life but it’s ok (& even encouraged) to carve our own unique path there.
You can view a brief video-bio here and read more about my BEFORE/AFTER in an article I wrote for Greatist.com.
Carla is also the author of the book, The Whole Megillah: Mitzvahs, Matzo Balls & Everything in Between (Bluegrass Publishing, May 2007).






