13 Beverages You Should Never, Ever Drink

The biggest problem with fruit juice is that a glass or two tends to contain way more fruit than you'd regularly consume in one sitting. And all that fruit contains sugar that can amount to a meal's worth of calories pretty quickly. But you probably don't — and definitely shouldn't — chug a glass of OJ and call that a meal. Juice is devoid of the filling fiber found in fruit, protein, and fat — so it's terribly unbalanced.

The difference between conventional milk and organic is that the former may contain estrogen, as it comes from cows treated with hormones. Experts worry that these consuming extra sex hormones can make you more susceptible to certain cancers. Some research links milk consumption to higher rates of breast, ovarian, and uterine cancer — it's why registered dietitian Isabel Smith recommends organic dairy products (particularly for big milk drinkers).

Yes, dairy-free milks are a godsend for lactose-intolerant folks who want their cereal/coffee/cookies with milk. But many flavored brands are loaded with empty calories, and some contain carrageenan, a thickening agent derived from seaweed that can irritate your digestive system. Smith suggests going for unsweetened plain or vanilla-flavored non-dairy milk that's organic or free of GMOs.

If a tasty product seems too good to be true, it probably is: Sweet-tasting sports drinks, iced teas, and sodas that are mysteriously devoid of calories often contain chemicals, artificial colorings, and artificial sweeteners that may seem to satisfy your sweet tooth, but don't actually fill you up. If this kind of stuff is present (just check the ingredient label), Smith says it can mess with the balance of bacteria in your gut — which plays a big role in weight regulation, according to recent research. To play it safe, drink water and boost the flavor with a squeeze of lemon or some frozen berries.

Straight-up soda is flavored with sugars that contribute calories without nutrients. Dark sodas may also contain phosphoric acid, which reduces the amount of calcium your body absorbs, ultimately weakening your bones and increasing your risk of injuries now, and osteoporosis later on. If you're going to drink soda no matter what you read, go for the one that contains the lowest sugar you can find, Smith suggests, and make sure it's made with natural flavors and without chemical additives.

A massive coffee will obviously rev you up — but after you buzz through your morning, all that caffeine can mess with your sleep schedule and nervous system (hello, coffee shakes). If your eyes don't fully open without caffeine, gradually scale back on size, or try half-caf.

These drinks contain artificial colors and sweeteners that just don't qualify as food. For non-athletes who want to nurse a hangover or replenish fluids after a super-sweaty fitness class, drink water or unflavored coconut water, which is a natural source of electrolytes that tends to contain fewer additives. (Endurance athletes are the only ones who may need special sports drinks, Smith says.)

Heat can degrade the plastic, and experts worry that this can cause chemicals to leech into the water. If you drink contaminated water on the regular, this could disrupt your hormones and increase your risk of cancer risk and reproductive problems.

Unlike seltzer (which is just water with bubbles), club soda and some mineral waters can be a sneaky source of sodium, with upwards of 50 milligrams per serving. Look for sodium-free varieties with natural flavors, if you're into that. And look out for brands that contain chemicals, which will be listed on the label. Another thing: You don't want to get all you fluids from bubbly water — it can be less hydrating than straight-up water, Smith says.

"Made from concentrate" is a fancy way of saying "processed," Smith explains. And that means the product could contain — you guessed it — iffy chemicals and superfluous sugars. As a general rule, fresher is almost always better option.

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