Lime water is water infused with fresh lime juice, and it adds vitamin C and antioxidants to plain water without calories or sugar
Lime water is straightforward water mixed with fresh lime juice—usually a squeeze or two per glass. It tastes tart and refreshing, and it carries some of the nutrients from the lime itself. The main draw is that it makes plain water more interesting to drink, which can help you stay hydrated throughout the day. It also contains small amounts of vitamin C, potassium, and compounds called antioxidants that your body uses to manage cell damage.
Because lime juice is acidic, some people wonder whether it harms tooth enamel or affects digestion. The short answer: diluted lime juice in water is far gentler than straight citrus juice, and most people tolerate it without problems. That said, if you have acid reflux or sensitive teeth, you may want to rinse your mouth after drinking it or talk to your doctor first.
Key Takeaways
- Lime water contains vitamin C and antioxidants, which support immune function and help protect cells from damage.
- Adding lime to water makes hydration more appealing and may help you drink more water overall.
- One lime squeezed into a glass of water provides roughly 5 to 10 milligrams of vitamin C, a small but real contribution to your daily intake.
- Diluted lime juice is gentler on teeth and digestion than straight citrus juice, though people with acid reflux should check with their doctor first.
- Lime water contains no calories, sugar, or artificial ingredients, making it a straightforward swap for sugary drinks.
How lime juice adds nutrients to water
A single lime contains about 13 milligrams of vitamin C, though only a fraction of that ends up in a glass of water when you squeeze it in. Still, that small amount counts toward your daily vitamin C goal—adults need 75 to 90 milligrams per day depending on age and sex. If you drink lime water regularly, those small doses add up.
Limes also contain flavonoids and other plant compounds that act as antioxidants. These compounds help neutralize unstable molecules in your body called free radicals, which can damage cells over time. The amount in lime water is modest, but it is part of a broader pattern: eating and drinking a variety of colorful plant foods throughout the day builds up your antioxidant intake.
Beyond vitamin C and antioxidants, lime juice contains potassium, a mineral your body needs for heart rhythm, muscle function, and blood pressure regulation. One lime has about 80 milligrams of potassium, and a squeeze into water delivers a small fraction of that. Again, it is not a replacement for eating potassium-rich foods like bananas or spinach, but it is a bonus nutrient in a drink you are already consuming.
Why lime water may help you drink more water
Plain water is the healthiest thing you can drink, but many people find it boring and end up reaching for sugary drinks, juice, or soda instead. Lime water tastes interesting without adding sugar or calories, which makes it easier to choose water over less healthy options. If you struggle to drink enough water during the day, adding lime—or lemon, cucumber, or mint—can make the habit stick.
Hydration itself is foundational to how your body works. Water regulates body temperature, carries nutrients to cells, helps digestion, and keeps your joints cushioned. Most people need about 8 to 10 cups of water per day, though the exact amount depends on your size, activity level, and climate. If lime water helps you reach that goal, that is a real benefit.
What the research says about citrus and digestion
Some people claim that lime water aids digestion or "detoxifies" the body. The evidence for these claims is limited. Lime juice does contain citric acid, which may stimulate saliva and stomach acid production—both normal parts of digestion—but there is no strong research showing that lime water improves digestion in healthy people.
The "detox" claim is even weaker. Your liver and kidneys already filter waste from your blood; no drink can do that job better. That said, staying well hydrated supports kidney function, so drinking more water of any kind—lime-infused or plain—is good for your body.
One area where lime juice does have a real effect is on iron absorption. If you drink lime water with a meal that contains plant-based iron (like beans or leafy greens), the vitamin C in the lime can help your body absorb that iron more efficiently. This is a genuine benefit if you are vegetarian or vegan, or if you have been told by a doctor that your iron is low.
Acidity and your teeth
Lime juice is acidic, with a pH around 2 to 3. Prolonged exposure to acid can soften tooth enamel, the hard outer layer that protects your teeth. However, lime water is diluted—the acid is spread across a whole glass of water—so the risk is much lower than if you drank straight lime juice or soda.
To protect your teeth further, you can rinse your mouth with plain water after drinking lime water, wait 30 minutes before brushing (brushing when ready after acid can damage enamel), or use a straw so the liquid bypasses your front teeth. If you have sensitive teeth or a history of enamel erosion, mention lime water to your dentist at your next visit.
Lime water and acid reflux
If you have acid reflux or gastroesophageal reflux disease (GERD), acidic foods and drinks can trigger symptoms like heartburn or regurgitation. Lime water may bother you for this reason. Some people with reflux tolerate diluted citrus well, while others do not—it depends on how sensitive your system is.
If you have been diagnosed with acid reflux, the safest approach is to ask your doctor or a dietitian whether lime water is okay for you. They know your specific condition and can give you personalized guidance. In the meantime, plain water is always a safe choice.
How to make and use lime water
Making lime water is straightforward: cut a fresh lime in half and squeeze the juice into a glass of water. You can adjust the amount of juice to taste—some people like a strong lime flavor, others prefer just a hint. If you want to prepare it ahead, you can squeeze lime juice into a pitcher of water and refrigerate it for up to a day, though the flavor fades slightly over time.
Fresh limes work best, but bottled lime juice (the kind with no added sugar or preservatives) is a reasonable backup if fresh limes are not available. Avoid sweetened lime juice or lime cordial, which add sugar and defeat the purpose of choosing water over sugary drinks.
You can drink lime water at any time of day. Some people prefer it cold, others at room temperature. There is no "best" time to drink it—the main goal is to drink enough water overall, and lime water counts toward that total.
Frequently Asked Questions
Does lime water help you lose weight?
Lime water itself does not cause weight loss. However, if it helps you drink more water and less soda or juice, you will consume fewer calories overall, which can support weight loss. The benefit comes from what you are replacing, not from the lime itself.
Can I drink lime water every day?
Yes, lime water is safe to drink daily for most people. If you have acid reflux, sensitive teeth, or kidney disease, check with your doctor first. Otherwise, daily lime water is a normal part of staying hydrated.
Is bottled lime juice as good as fresh lime?
Fresh lime juice has slightly more vitamin C and flavor, but unsweetened bottled lime juice is a practical alternative if fresh limes are not available. Avoid brands with added sugar or preservatives. Check the label to make sure it is 100 percent lime juice.
Does lime water interact with medications?
Lime water is unlikely to interact with most medications, but some drugs are affected by citrus. If you take statins, blood pressure medications, or immunosuppressants, ask your pharmacist whether lime juice is safe for you. They can check your specific medications.
Can I use bottled or canned lime juice instead of fresh?
Bottled lime juice works, but fresh is preferable because it has more nutrients and flavor. If you use bottled juice, choose brands with no added sugar, sodium, or preservatives. Read the label carefully—some products are sweetened or diluted.