Find the venue’s website in advance so you can browse the menu options and know what’s healthiest, says Martha McKittrick, RD, CDE, a New York-based nutritionist. “That way you'll be less tempted to order something [that’s] not-so-healthy when you get to the restaurant,” she says. Knowing what you’ll be eating later also gives you the opportunity to balance out your other meals ahead of time, giving you a little wiggle room to enjoy your dinner with a glass of wine, for instance.