Why Does Water Make Me Nauseous?

Water is integral to good health, but sometimes drinking water can cause you to feel nauseous. On average, humans need to drink at least eight glasses of water every day to avoid dehydration. When it comes to healthy hydration, there’s no substitute for water.

While consuming an adequate amount of water is essential for your health. It’s also important to note that you aren’t drinking enough of it when water makes you nauseous. But why does water make you nauseous?

Several different factors can cause nausea after drinking water. Your water could be contaminated with a bacteria or parasite, or you might be dehydrated. When you’re extremely dehydrated, it may cause your body to think it’s sick. The anticholinergic drug found in certain medications can also cause nausea. Here, we’ll talk about some of the reasons you feel nauseous after drinking water.

Why Does Water Make Me Nauseous – 11 Most Common Reasons

There are several reasons why you may feel sick after drinking water. Certain disorders can cause you to feel nauseous after drinking a glass of water. For instance, hyperventilation syndrome may make you feel lightheaded and sick after drinking water. let us Discuss these reasons in detail:

Contaminated Water

Water that is contaminated with bacteria or parasites may make you feel sick to your stomach. You might notice a sour taste in the back of your throat, or even an abnormal odor coming from the water.

Regular tap water isn’t necessarily your best option when it comes to drinking water. The EPA regulates safe drinking water across the country, but this doesn’t necessarily mean that the water you drink is safe. The chemicals in your tap water can also cause nausea, and it may be good to look into getting a drinking filter for your home.


Suppose you aren’t drinking enough water or are experiencing any other signs of dehydration (your mouth is dry, you have a headache, or your urine is dark yellow). In that case, you may be experiencing nausea from drinking water.

Drug Interactions

Certain prescription medications can cause nausea when taken with water. Anticholinergic medications like Benadryl and Hydroxyzine can cause vomiting when combined with H2O. This also applies to certain drugs for high blood pressure, heart disease, and sleeping disorders.

Drinking Too Quickly

When you drink too fast, the water can’t be absorbed into your body quickly enough. This causes the water to travel down the esophagus and into your stomach. Drinking very cold water also causes nausea for many people because it causes discomfort in your throat when you try to swallow.

Stomach is Full

If you’ve already eaten a large meal or a big snack, it may be difficult for your stomach to accommodate more food. Drinking water while eating can cause discomfort because the two just don’t mix very well.

Bad Smell and Taste

When your water starts to smell bad, you probably shouldn’t drink it. A strong smell or a bad taste coming from your water is a sign that the water is contaminated, and could make you sick if you drink it anyway.

Thirsty vs Dehydrated

    When your body feels thirsty, it’s trying to tell you something! Thirst is when the body is in mild to moderate dehydration. If you’re feeling thirsty, try to have a glass of water before thirst hits extreme levels and you feel nauseous.


    When drinking excessively at a party or after work, nausea can set in if your body isn’t accustomed to being so active while dehydrated. The combination of alcohol and dehydration can cause all sorts of problems, including nausea.

    Drinking Too Much Water at Once

    If you have an average hydration level, it’s not necessary to sip on water all day long. Many people mistake drinking bottles for bottles of water, thinking that more is always better. Drinking too much water at once can cause nausea and other side effects.


    If you have allergies or a stuffy nose, taking a sip of water can cause your throat to tighten up or lead to increased production of mucus in the back of your throat. This may also result in uncontrollable coughing episodes.

    Other Medical Conditions

    Nausea from drinking water may be a sign of dehydration, so you should always consult with your doctor if this symptom persists for more than a day. It can also indicate that there’s something wrong with your digestive system. Recent studies have linked nausea and vomiting to stomach cancer or ulcers, stomach ulcers, or irritable bowel syndrome.

    How Do I Stop Feeling Nauseous After Drinking Water?

    Here are important recommendations to follow that can help you to stop feeling sick after drinking water:

    1. When you are sick, try to drink frequently instead of in large amounts at once. Also, make sure that your water is clean and tastes alright.
    2. Don’t drink water with meals or too close to a meal.
    3. If you’re feeling nausea when drinking water, try taking small sips instead of large gulps. This should help the condition subside.
    4. If your stomach is full, don’t force yourself to drink anymore until it has had a chance to digest.
    5. Don’t smoke while drinking water, especially if you smoke cigarettes or have second-hand smoke. Nicotine and other chemicals in cigarette smoke can make you feel sick when ingested through your nose and mouth. If your water smells or tastes bad, don’t drink it! It may be contaminated with bacteria that can make you sick.
    6. If you have thyroid problems, diabetes, or other conditions in your endocrine system, drink lots of water throughout the day to prevent dehydration. Also, if you are female and menstruating, this may lead to excessive thirst that is hard to quench. It’s important for women who are on their period to remember to drink lots of water.
    7. If you are nauseous after drinking a glass of water, check for signs that your water may be contaminated with bacteria or other impurities. If so, try boiling it before you consume it.
    8. Check to see if there’s anything in the environment around you that is making you feel sick such as allergens in the air, strong odors from cooking, or smoke.
    9. If you have stomach cancer, ulcers, irritable bowel syndrome, or intestinal infection, drinking water may cause a sudden bout of nausea. Your symptoms are likely caused by irritation and inflammation of your stomach lining. Your doctor can provide you with medications to ease inflammation and protect your stomach lining from further irritation if this is the case.
    10. Don’t drink water too quickly because it can lead to water intoxication and dehydration. You could experience headaches, vomiting, confusion, and convulsions if you drink too much water at one time.
    11. Try to avoid drinking much water on an empty stomach. You may feel nauseous or experience gastrointestinal problems if you drink water on an empty stomach.
    12. If you are vomiting, try not to force yourself to drink anything else until your nausea subsides. After your stomach has a chance to digest the food you had eaten, drinking more fluids won’t make you feel sick again because your food was digested before you drank another liquid.
    13. If your nausea is accompanied by stomach cramps, vomiting, or diarrhea, try drinking a carbonated beverage. Carbonation may help relieve nausea and pain that come with these symptoms.

    Final Thoughts

    There are many reasons why water makes a person feel sick. If you drink too much water too fast, your body needs time to absorb the liquid. As a result, you may feel nauseous and dizzy. If the nausea is not stopped, your body can experience water intoxication which puts you at risk for symptoms like confusion, extreme fatigue, convulsions, and even death

    When your body isn’t used to drinking water regularly, you may experience nausea and other symptoms when you’ve had too much water. The best way to avoid these side effects is to drink water slowly throughout the day instead of drinking much water at once. Drinking water before eating will also help prevent nausea. By avoiding coffee, soda, or other caffeinated beverages while hydrating you’ll be able to maximize your results from drinking more water a day.

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