updated 06/27/2012 AT 5:45 PM ET
•originally published 06/27/2012 AT 9:00 PM ET
Motherhood does a body good – at least in the case of Hilary Duff.
Post-pregnancy yoga and Pilates workouts are working for the former Disney star, 24, who said in April that those exercises make her “feel more clear-headed and positive.”
She is also folowing the Fresh Mommy program, a national gourmet meal delivery service created by Freshology, which brings her three meals plus snack and a dessert daily.
Flaunting her fit figure in a black, low-rise bikini, Duff is photographed in Mexico carrying 3-month-old son Luca Cruz, while adjusting her sunglasses and showing off some serious abs.