Poste’s duck hash contains hearty duck confit and roasted potatoes, and is topped with a fried duck egg.

Sometimes, trying to stay on top of food news — which always seems to mean filling up on fancy dishes — leaves me feeling extra-concerned about getting enough exercise. So I jumped on the chance to try a Pilates on the Patio class at Poste. Led by cheerful instructor Chauna Bryant, the class (10 a.m. Saturdays through Oct. 6, $19; concludes with a free glass of champagne — and then you’re encouraged to eat brunch at Poste (555 8th St. NW; 202-783-6060).

What’s it like to pivot from pilates to bubbly? Definitely more fun than most things I do at 10:45 a.m. Eating brunch afterward is fun, too, since you’ve got a temporary get-out-of-guilt-free pass.

My friend and I felt emboldened to start our meal with the doughnut plate ($14) — five hot, sugar-coated orbs filled with chocolate ganache, lemon curd and jelly. (If you’re sharing, skip the jelly, which tastes like supermarket jam, but be sure to nab an oozy chocolate.)

Entrees included more rich foods. Poste’s duck hash — duck confit and roasted potatoes, topped with a fried duck egg ($24) — was substantial. Then there was Eggs Chesapeake: essentially, Eggs Benedict featuring crabcakes instead of Canadian bacon ($19). The poached egg and Old Bay-dusted hollandaise sauce tasted wonderfully cool atop the warm lump crabcakes.

Unfortunately, I was eating this dish when I realized that all my great work on the Pilates mat was pretty much for naught. Of course, I still kept eating.