She only gave birth three weeks ago, but "Real Housewives of NYC" star Bethenny Frankel is already back to wearing size 4 bathing suits.
In the new issue of Us Weekly, the fit 39-year-old new mom reveals she's already lost 29 of the 35lbs she gained during her pregnancy by taking 30 minute walks and a low-fat diet.
No doubt fighting with Jill Zarin also burns a decent amount of calories.
