Here’s a list of some of the worst foods and drinks for swimsuit season, and what to eat instead. They come from our friend David Zinczenko, who co-wrote the best-selling book series Eat This, Not That:

  • Let’s start with your favorite frozen dinner: Microwaveable meals are typically loaded with sodium. And sodium is an electrolyte that tells your body to hold on to water. That's not the same as being properly hydrated. See, sodium-induced water retention causes you to carry water weight, which makes you appear swollen and puffy. Unless you're going for a beached-whale look, seek low-sodium foods before hitting the beach.

  • Next, what’s the worst snack for the beach? Any cruciferous vegetable dipped in ranch dressing, like broccoli, cauliflower, or Brussels sprouts. Surprised? While vegetables are generally a smart snack choice, cruciferous veggies contain a type of sugar that ferments in the gut. So just as you’re trying to have fun on the beach, you’ll be feeling gassy instead. Plus, ranch dressing is a fat and calorie bomb! That’s why our expert recommends packing tortilla chips and salsa in your beach bag instead. Each serving of chips and salsa has 20 fewer calories, and two-thirds less fat, than broccoli dipped in ranch dressing.

  • Finally, the worst seaside dessert is: Anything sugar-free, like sugar-free brownies, or sugar-free ice cream, because sugar-free foods are sweetened with sugar alcohol, which isn’t fully absorbed in the body and can have you running to the bathroom. So, stick to eating fruit for dessert this summer. You’ll save more than 100 calories, without the discomfort and bloat.