Several beverages are just as healthy as water and offer benefits that plain water can’t. Tea, coffee, milk, and a handful of other drinks provide hydration along with protective plant compounds, protein, or electrolytes. The key distinction is added sugar: once a drink crosses into sweetened territory, its health profile changes dramatically. The World Health Organization recommends keeping added sugar below 10% of your total daily calories (roughly 50 grams for most adults), and ideally below 5% for additional benefits.
Tea: Green, Black, and Herbal
Unsweetened tea is one of the best things you can drink. A typical cup of green tea delivers 50 to 100 milligrams of a powerful antioxidant compound that promotes fat burning, improves insulin sensitivity, and helps regulate blood sugar. It does this partly by activating an energy-sensing enzyme in your cells that increases fat oxidation and reduces new fat production in the liver. Green tea also contains 30 to 40 milligrams of caffeine per cup, enough for a mild energy boost without the jitters most people get from coffee.
Black tea offers a similar antioxidant profile, though with different plant compounds and slightly more caffeine. Herbal teas deserve their own mention. Hibiscus tea, in particular, has strong evidence behind it. In a controlled trial funded by the USDA, volunteers who drank hibiscus tea daily experienced a 7.2-point drop in systolic blood pressure compared to a 1.3-point drop in the placebo group. Among those who started with elevated blood pressure (129 or above), the effect was even more dramatic: a 13.2-point systolic drop and a 6.4-point diastolic drop. That rivals what some medications achieve.
None of these benefits apply once you add sugar. A sweetened bottled tea from a convenience store is a different product entirely.
Coffee in Moderation
One to three cups of coffee per day is associated with a lower risk of death from all causes, including cardiovascular disease. Large prospective studies consistently show an inverse relationship between moderate coffee consumption and the risk of type 2 diabetes, heart disease, and certain cancers. The benefit appears to come from coffee’s hundreds of bioactive compounds, not just caffeine, since decaf shows similar patterns in some research.
The catch is what you put in it. The mortality benefit in recent U.S. data differed depending on how much sugar and saturated fat people added to their coffee. A splash of milk is fine. A daily 400-calorie blended coffee drink with flavored syrup is not a health beverage.
Milk and Plant-Based Alternatives
Dairy milk provides a little over 8 grams of protein per cup along with about 300 milligrams of calcium. Ultrafiltered milk pushes that to 13 grams of protein and 380 milligrams of calcium per cup. For hydration specifically, milk actually outperforms water. Beverages that contain sodium, protein, and small amounts of sugar slow gastric emptying and reduce urine output, keeping you hydrated longer. This is why the Beverage Hydration Index, a research tool that scores drinks against water, consistently ranks milk above plain water.
Among plant milks, soy milk comes closest to dairy with about 7 grams of protein per cup. Many brands are fortified with calcium to match dairy’s 300-milligram level. Almond milk, by contrast, contains just 1 gram of protein per cup. It’s fine as a low-calorie option, but it’s not a nutritional substitute for dairy or soy. Oat milk falls somewhere in between, usually offering 2 to 4 grams of protein but with more carbohydrates. Check the label for added sugars regardless of which plant milk you choose.
Coconut Water
Coconut water is a natural source of electrolytes, with about 470 milligrams of potassium per cup. That’s more potassium than a banana. It’s a reasonable choice after exercise or on a hot day when you’re sweating out minerals, and it’s lower in sugar than sports drinks or fruit juice. Pure coconut water typically contains around 45 calories per cup. Watch out for flavored versions, which often have added sugar that doubles the calorie count.
Sparkling Water
Plain sparkling water hydrates you the same as still water. Despite concerns about its acidity, research comparing carbonated water to regular water found the two had essentially the same effect on tooth enamel. The American Dental Association considers sparkling water far better for your teeth than sugary drinks. The only caveat is flavored sparkling waters with added sugar, which behave like soda in your mouth and can contribute to cavities. Unflavored or naturally flavored (zero-sugar) varieties are perfectly fine as a daily water substitute.
Kombucha
Kombucha is fermented tea that contains organic acids and live microorganisms. The most common bacteria found in commercial kombucha belong to acid-producing and fermentation-related genera. Some brands add specific probiotic strains and label accordingly. Whether those microorganisms survive stomach acid in meaningful numbers is still debated, but kombucha does contain beneficial organic acids and polyphenols from the tea base.
Sugar content varies widely. During fermentation, yeast and bacteria consume much of the sugar used to brew kombucha, but the amount left over depends on how long the product fermented. Some commercial bottles contain as little as 2 grams of sugar per serving, while others have 15 grams or more. Read the nutrition label. A kombucha with 4 to 6 grams of sugar per serving is a reasonable choice. Anything above 12 grams starts competing with soda.
Tomato Juice and Vegetable Blends
Tomato juice is rich in lycopene, a red pigment that functions as a potent antioxidant in the body. In a study of young women who drank about 280 milliliters of tomato juice daily for two months, researchers observed significant reductions in plasma cholesterol and increases in adiponectin, a hormone with anti-inflammatory properties that helps protect blood vessels. A larger prospective study of over 27,000 women found that those consuming 10 or more servings of tomato products per week had lower triglycerides, lower LDL cholesterol, and better blood sugar markers. Meta-analyses of human studies have linked higher lycopene levels to reductions in systolic blood pressure of up to 5.66 points.
The main concern with store-bought tomato juice is sodium. A single cup can contain 600 to 900 milligrams, which is a significant chunk of the daily recommended limit. Low-sodium versions cut that roughly in half and are a better everyday choice.
Fruit Juice: Worth Limiting
One hundred percent fruit juice does contain vitamins and plant compounds, but it also delivers a concentrated dose of sugar without the fiber that slows absorption when you eat whole fruit. The Dietary Guidelines for Americans recommend that at least half your daily fruit intake come from whole fruit rather than juice. A small glass (about 4 to 6 ounces) of 100% orange juice or pomegranate juice can fit into a healthy diet. A 16-ounce bottle is essentially liquid sugar, even without anything added.
What Actually Makes a Drink Healthy
The pattern across all of these beverages is simple. Healthy drinks provide hydration plus something useful: antioxidants, protein, electrolytes, or beneficial microorganisms. They contain little or no added sugar. They don’t require a long ingredient list. If you’re trying to build a rotation beyond water, unsweetened tea and black coffee are the easiest wins. Milk or soy milk adds protein. Sparkling water satisfies a craving for something fizzy. Coconut water and tomato juice fill specific nutritional niches. The drinks to avoid aren’t hard to spot: if sugar is in the first three ingredients, it’s a treat, not a health drink.