In recent years, we’ve traded Diet Coke for prebiotic soda, and 100-calorie snack packs for pints of high-protein ice cream.

To participate in the $2 trillion U.S. wellness market, you can sign up for a Pilates class, sip a green juice…or snack on a bag of high-fiber gummy worms. In recent years, we’ve traded Diet ...

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Four boxes of gluten free snacks on a blue background - Static Media / Shutterstock ...