Plain water is not the only path to good hydration, and disliking it does not doom you to chronic dehydration. Milk, tea, coffee, fruit juice, flavored water, broth, and even water-rich foods all contribute meaningfully to your daily fluid intake. A 2016 study that ranked common beverages by how well the body retains them found that skimmed milk, full-fat milk, and orange juice all outperformed plain water for hydration over a four-hour window. The real question is not whether alternatives exist but which ones serve you well and which come with trade-offs worth knowing about.
Beverages That Hydrate Better Than Water
Researchers at Loughborough University developed what they called a Beverage Hydration Index, essentially a measure of how much fluid your body retains from a drink compared with the same volume of still water. The results were striking: skimmed milk, full-fat milk, an oral rehydration solution, and orange juice all scored significantly higher than water at the two-hour mark, and maintained that advantage at three and four hours as well. Skimmed milk had the highest index of the group, with full-fat milk close behind.1The American Journal of Clinical Nutrition. A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index
Why milk? Two things work in its favor. First, it contains electrolytes, including sodium and potassium, that slow how quickly your kidneys flush the fluid out. Second, milk protein appears to slow gastric emptying, meaning the liquid sits in your stomach longer and gets absorbed more gradually rather than rushing through you. Research on soy-based beverages suggests that plant proteins may produce a similar slowing effect, though the evidence there is still early-stage.2PubMed Central. Fluid and electrolyte balance following consumption of skimmed milk and a plant-based soya beverage at rest in euhydrated males
This does not mean you should replace all your water with milk. It means that if you already enjoy milk in your cereal, in a latte, or as a glass with dinner, it is doing real hydration work. For people who find plain water boring or unpleasant, knowing that your morning coffee with milk or a glass of orange juice “counts” can take the pressure off.
Coffee and Tea Are Not Dehydrating
One of the most persistent hydration myths is that caffeinated beverages are dehydrating. Caffeine is a mild diuretic, meaning it makes you produce slightly more urine, and that kernel of truth got stretched into the widespread belief that your coffee habit is working against you. A well-designed crossover study put this to the test by having regular coffee drinkers consume four cups per day (about 800 mL total) for three consecutive days, then switch to the same volume of water. Total body water did not differ significantly between the two conditions.3PLOS ONE. No Evidence of Dehydration with Moderate Daily Coffee Intake: A Counterbalanced Cross-Over Study in a Free-Living Population
The practical takeaway: if you drink three or four cups of coffee or tea a day, the fluid you take in more than compensates for the small diuretic bump from caffeine. You are hydrating, not dehydrating. This applies to black tea, green tea, and other caffeinated teas as well. The key word is “moderate.” If you are drinking an extreme amount of strong coffee, the math might shift a little, but for everyday consumption, count your coffee and tea toward your fluid intake without guilt.
Herbal Tea as a Water Substitute
Herbal teas are essentially flavored water, brewed from dried plants rather than tea leaves, and they hydrate in much the same way water does. A study comparing rooibos tea to plain water for rehydration after exercise-induced dehydration found that rooibos was no more effective than water, but importantly, no less effective either.4PubMed. Effects of rooibos tea, bottled water, and a carbohydrate beverage on blood and urinary measures of hydration after acute dehydration That might sound disappointing, but if you are someone who dislikes plain water, “just as good as water but it tastes like something” is exactly what you are looking for.
Peppermint, chamomile, ginger, hibiscus, and fruit-flavored herbal blends are all caffeine-free and essentially calorie-free if you skip the sugar. They are among the cleanest water substitutes available. Brewing a pot in the morning and sipping it throughout the day, warm or iced, is a common strategy for people who struggle to hit their fluid targets. The variety helps too: rotating flavors keeps the experience from becoming monotonous in a way a glass of water can.
Sparkling Water and Flavored Waters
Plain sparkling water, the kind with nothing added but carbonation, hydrates you essentially the same as still water. Some people find the fizz makes it more satisfying to drink, which means they end up drinking more. If that is you, sparkling water is a solid choice with one caveat worth understanding.
Carbonation makes water slightly acidic. For plain sparkling water, the pH drop is modest and research suggests it does not pose a serious threat to healthy tooth enamel under normal conditions. The picture changes dramatically when flavor is added. Flavored sparkling waters tested in a lab showed appreciable acidity with pH values between 2.74 and 3.34, and their erosive potential on enamel was comparable to or greater than that of pure orange juice.5PubMed. The erosive potential of flavoured sparkling water drinks Another study on carbonated water produced by a home soda maker found measurable microhardness changes in tooth enamel across most experimental groups, though low-level carbonation with added calcium was an exception.6PubMed Central. Effect of carbonated water manufactured by a soda carbonator on etched or sealed enamel
The practical advice: unflavored sparkling water is fine for everyday drinking. Flavored sparkling waters, especially those with citrus flavorings or added citric acid, are closer to soft drinks from your teeth’s perspective. Drinking them with meals rather than sipping throughout the day, and rinsing with plain water afterward, reduces the exposure. If you go through several cans a day, it is worth paying attention to whether the brand has added acids beyond simple carbonation.
Fruit Juice in Moderation
Orange juice ranked well in the Beverage Hydration Index study, retaining meaningfully more fluid than water over a four-hour period.1The American Journal of Clinical Nutrition. A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index Its natural sugar and potassium content likely contribute to that retention. But juice comes with a calorie load that water does not, and it lacks the fiber of whole fruit.
Research comparing whole apples to apple juice found that the juice was consumed roughly eleven times faster, produced a larger insulin spike, and left participants feeling less full. Removing fiber from the fruit fundamentally changes how the body handles the sugar.7PubMed Central. Whole Fruits Versus 100% Fruit Juice: Revisiting the Evidence and Its Implications for US Healthy Dietary Recommendations None of this means juice is bad, but it does mean a tall glass of OJ is not nutritionally equivalent to eating an orange and drinking water separately.
If you enjoy juice, a reasonable approach is to treat it as one of several hydration sources rather than your primary one. Diluting juice with still or sparkling water, sometimes called a “spritzer,” cuts the sugar and calorie content while keeping the flavor that makes it appealing. A roughly fifty-fifty mix still tastes like something while bringing the sugar load much closer to plain water.
Flavored Water Enhancers and Sweeteners
Liquid water enhancers, powdered drink mixes, and drops that add flavor to a glass of water are increasingly popular. Most are sweetened with non-nutritive sweeteners such as stevia extracts (steviol glycosides) or sugar alcohols like erythritol. The hydration value is essentially the same as plain water since you are drinking water with trace amounts of flavoring.
A common concern is whether these sweeteners disrupt gut bacteria. Research testing steviol glycosides and erythritol against representatives of the human gut microbiome found no negative impact on the gut microbial community. Erythritol even appeared to enhance production of certain beneficial short-chain fatty acids.8Journal of Agricultural and Food Chemistry. Impact of Steviol Glycosides and Erythritol on the Human and Cebus apella Gut Microbiome The broader picture on artificial and non-nutritive sweeteners is still evolving, but for the specific question of “can I use these to make water palatable,” the current evidence is reassuring for moderate use.
Watch out for enhancers that contain citric acid, which many do for tartness. Like flavored sparkling waters, these can lower the pH of your drink enough to be mildly erosive on teeth with frequent exposure. If you are using enhancers in every glass of water throughout the day, a rinse with plain water after finishing a glass is a reasonable precaution.
Why You Might Dislike Water in the First Place
Not liking water is more common than most people admit, and it is not just pickiness. Water has a taste, or rather, its mineral content gives it a range of tastes depending on the source. A study examining water preferences found that people consistently preferred water treated with reverse osmosis, like most bottled water, over groundwater-sourced tap water. The tap water had higher pH levels and higher concentrations of calcium and bicarbonate. Participants described their preferences primarily in terms of taste and texture.9PubMed. Preference for tap, bottled, and recycled water: Relations to PTC taste sensitivity and personality
What this means practically is that if you “hate water,” you may actually hate your tap water. Trying a different brand of bottled water, using a filter that reduces mineral content, or even just switching from tap to a filtered pitcher could shift your experience enough that plain water becomes tolerable. Some people discover they like water fine when it is cold but find it undrinkable at room temperature, or vice versa.
Temperature matters more than most people realize. A systematic review of beverage temperature and consumption found that cool beverages, below about 22°C or 72°F, significantly increased both how palatable people found the drink and how much they voluntarily consumed during exercise.10International Journal of Sport Nutrition and Exercise Metabolism. Influence of Beverage Temperature on Palatability and Fluid Ingestion During Endurance Exercise: A Systematic Review The takeaway extends beyond exercise: if you keep a pitcher of cold water in the fridge or toss a few ice cubes in your glass, you might drink more than you think you will. A squeeze of lemon or a few cucumber slices can also change the sensory profile enough to get past whatever it is about plain water that turns you off.
What Happens When You Stay Under-Hydrated
The reason this question matters goes beyond comfort. Chronic low fluid intake has real effects on how you feel and function day to day, and many people who do not like water are walking around mildly dehydrated without connecting it to their symptoms.
A controlled trial with male college students found that dehydration led to measurable drops in vigor and self-esteem-related mood, worse short-term memory on digit span tests, and higher error rates on attention tasks.11PubMed Central. Effects of Dehydration and Rehydration on Cognitive Performance and Mood among Male College Students in Cangzhou, China: A Self-Controlled Trial These effects reversed with rehydration, which reinforces that the fluid itself was the variable, not something else about the study conditions.
An intervention study looking at mood took a different angle. People who habitually drank a lot of water were asked to cut their intake, while low drinkers were asked to increase theirs. Among the high drinkers who cut back, contentedness and calmness both dropped significantly, positive emotions decreased, vigor declined, and thirst increased sharply.12PubMed Central. Effects of Changes on Water Intake on Mood of High and Low Drinkers If you have been operating at a low baseline for years, you may have normalized a low-grade version of these effects. People who start actively hydrating often report improved energy and mood within days, which is not a placebo effect if their baseline was genuinely below what their body needed.
Hydration From Food
Drinks are not the only source of water your body uses. Fruits and vegetables with high water content contribute to hydration in a way that many people overlook. Cucumbers, watermelon, strawberries, lettuce, celery, and tomatoes are all above 90 percent water by weight. Soups and broths count too. Across European countries, research on fluid intake patterns has shown that while water makes up the largest share of total fluid intake in most populations, food and non-water beverages contribute meaningfully in every country studied.13Oxford Academic (Nutrition Reviews). Patterns of drinking and eating across the European Union: implications for hydration status
For someone who dislikes water, leaning into water-rich foods can quietly close some of the gap. A bowl of soup for lunch, a big salad with dinner, snacking on melon or grapes throughout the day: none of these feel like “hydrating,” but they are. You will not meet all your fluid needs through food alone, but if you are drinking herbal tea, having milk with cereal, eating soup, and snacking on fruit, you are getting a lot more fluid than you might think without forcing down glasses of plain water.
Building a Practical Rotation
If plain water is genuinely unappealing to you, the most sustainable approach is variety. No single alternative needs to do all the work. A reasonable daily pattern might include a morning coffee or tea, a glass of milk or a smoothie, sparkling water with lunch, herbal tea in the afternoon, and water-rich foods throughout. That covers your fluid needs without requiring you to choke down something you do not enjoy.
A few principles worth keeping in mind as you build your own rotation:
- Watch the calories: Sweetened drinks, juice, and milk all carry energy that plain water does not. If your entire fluid intake comes from caloric beverages, you can easily add several hundred extra calories a day without feeling full. Anchor the rotation around calorie-free or low-calorie options like herbal tea, plain sparkling water, and water with enhancers, then use caloric drinks as a few entries in the lineup rather than the whole lineup.
- Mind the acid: Citrus juices, flavored sparkling waters, sports drinks, and many water enhancers are acidic enough to soften tooth enamel with repeated exposure. Using a straw, drinking with meals instead of sipping all day, and rinsing with plain water afterward all reduce the contact time between acid and teeth.
- Experiment with your water: Before giving up on water entirely, try different temperatures, different sources (filtered, spring, mineral), and simple additions like citrus slices, mint, or berries. The sensory profile of water varies enough that someone who hates warm tap water might genuinely enjoy cold filtered water with a few drops of lemon.
- Use your urine as a gauge: Pale straw-colored urine generally indicates adequate hydration. Very dark urine suggests you need more fluid. Very clear urine all day long suggests you might be overdoing it. This is a rough guide, not a medical diagnostic, but it works well as a daily check-in.
The underlying point is this: hydration is cumulative. Your body does not care whether the water molecules came from a glass of water, a cup of tea, a bowl of soup, or a slice of watermelon. What matters is that enough fluid gets in. If you have spent years feeling guilty about not drinking eight glasses of water a day, the evidence says you can relax. Drink what you enjoy, pay some attention to calorie and acid content, and your body will take care of the rest.
When to Worry and When Not To
Certain groups need to pay closer attention to hydration than others. Older adults often have a blunted thirst response and may not feel thirsty until they are already significantly under-hydrated. People who exercise intensely, work outdoors in heat, or live at high altitude lose more fluid and need to replace more. Pregnant and breastfeeding women have higher fluid requirements. For these groups, relying solely on thirst as a cue can fall short, and having a deliberate hydration strategy matters more than it does for a sedentary office worker in a temperate climate.
For most healthy adults, though, the fear of dehydration is overblown relative to how common serious dehydration actually is. The “eight glasses a day” rule has no strong scientific origin and does not account for fluid from food or non-water beverages. If you are eating regular meals, drinking a few cups of coffee or tea, having some milk or juice, and not ignoring thirst when it shows up, you are probably doing fine. The surest sign of a problem is persistently dark urine combined with symptoms like headache, fatigue, or difficulty concentrating. If that describes you and you are barely drinking anything all day, any of the alternatives discussed here will help. The best drink for hydration is the one you will actually consume.