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One of the things I thought a lot about when pregnant with twins was food. Not only because my appetite was off the charts, but also because it was hard to imagine what dinnertime would look like once we added two newborns in to the mix. When I had my daughter, I learned (the hard...

For today’s edition of Dear Mark, I’m answering six questions from some of my Twitter followers. Yesterday, I asked the community for questions and got some great ones in return. For instance, how much oily fish should one eat each week? And how does diet and nutrition influence posture and coordination? Third, how should a...

Prostock-studio / ShutterstockLooking for a workout plan that will kick-start weight loss? We tapped New York City-based CAFS personal trainer Ashley Rosenberg, a group fitness instructor at modelFIT NYC, to develop a four-day weight-loss workout plan to help boost your metabolism and build muscle from head to toe. Follow this strength and cardio plan—but remember that...

Miguel G. Saavedra / ShutterstockKim Kardashian, Perez Hilton, Cardi B, Kylie Jenner, and other celebrities have promoted weight-loss products such as diet teas and “appetite-suppressing lollipops” on social media. Not only do most of these products not work, they often do more harm than good. After months of public backlash, Instagram recently announced that it...