What does drinking unfiltered water do to your body?

Author: Francesca McKenzie  |  Last update: Sunday, February 22, 2026

Contaminated water and poor sanitation are linked to transmission of diseases such as cholera, diarrhoea, dysentery, hepatitis A, typhoid and polio. Absent, inadequate, or inappropriately managed water and sanitation services expose individuals to preventable health risks.

What are the symptoms of drinking unfiltered water?

What are the symptoms of water-borne illness? Symptoms may include diarrhea, cramps, nausea and possible jaundice and associated headaches and fatigue. Symptoms may appear as early as a few hours to several days after infection and may last more than two weeks.

What are the benefits of drinking unfiltered water?

People who champion raw water claim it has health benefits, such as essential minerals and beneficial bacteria called probiotics, that are stripped from tap water.

What happens when water is not filtered?

The truth is that most contaminants found in tap water are unhealthy and can be very dangerous. Even pure water from the tap can contain such things as lead, pesticides, bacteria, and chlorine. In fact, drinking tap water puts you at risk for lead poisoning every day. Filtered water on the other hand is safer.

What happens if you drink water from a dirty filter?

Possible Risks of Drinking Dirty Water

You and your family experience gastrointestinal problems, including diarrhea, nausea, and stomach cramping. Your water has an off taste, which makes the food you prepare with it taste different than it should.

How Bad Is Tap Water for Health? | Dr. Andrew Huberman

What are disadvantages of drinking filter water?

Although filters can be helpful in removing harmful chemicals from our water, they sometimes strip away beneficial minerals too. These include magnesium and calcium, as well as iron and manganese, which are eliminated to make water softer and prevent discolouration, respectively.

Is drinking unfiltered water bad for you?

Water that has not been treated or is not from a safe source may contain harmful germs or chemicals that can make you sick. Public water utilities remove harmful germs and chemicals to make tap water safe to drink.

Does a water filter remove parasites?

A filter provides first-line defence against toxins

Water utilities invest heavily in systems and technologies which fight these parasites and remove them from the public water supply, but your own water filter system gives you an extra front-line defence at the point where you most need it; the tap.

How clean does water have to be to drink?

Boiling is sufficient to kill pathogenic bacteria, viruses and protozoa (WHO, 2015). If water is cloudy, let it settle and filter it through a clean cloth, paperboiling water towel, or coffee filter. Bring water to a rolling boil for at least one minute.

Why can't humans drink unfiltered water?

Never drink water from a natural source that you haven't purified, even if the water looks clean. Water in a stream, river or lake may look clean, but it can still be filled with bacteria, viruses, and parasites that can result in waterborne diseases, such as cryptosporidiosis or giardiasis.

Can unfiltered water cause digestive issues?

Germs and chemicals in drinking water cause a variety of mild to serious health issues. Symptoms depend on the type of germ or chemical in the unsafe water. Many germs that spread through water cause stomach pain and diarrhea.

What is the healthiest fruit to put in water?

A great benefit of infusing water with fresh fruits, herbs, and spices is that you can get some added nutritional benefits. Lemons, lime, oranges, grapefruit, and berries are all excellent sources of vitamin C. Fresh ginger and fresh mint are both refreshing flavorings as well as good for upset stomachs.

How many people get sick from unfiltered water?

Key points. CDC estimates at least 1.1 million people in the United States get sick every year from germs in drinking water. Legionella germs are the most common cause of illness outbreaks linked to drinking water. If you are concerned about your tap water, contact your water utility or health department.

What happens to your body when you start drinking more water?

Water works as a lubricant for your joints, helping to reduce joint pain and protect against daily wear and tear. In fact, drinking more water can help to eliminate other pain in the body by supporting your lymphatic system, a network of nodes, tubes, vessels and fluid that move waste from your tissues.

What does unfiltered water do to your skin?

What Kind of Damage Can It Cause? If your skin is sensitive and is repeatedly exposed to hard water, Green notes that it could do anything from cause surface dryness to even exacerbate acne: “Tap water can cause dryness, irritation and even breakouts because it can clog your pores,” she tells us.

How to tell if your water has parasites?

Test your water for total coliform and E. coli bacteria. If your results show bacteria were "detected" then surface water has somehow leaked into your water system, which means parasites like Cryptosporidium and Giardia could also get into your water supply.

Does a water filter remove toxins?

Overview. Different water filters have different functions. Some make your water taste better, others remove harmful chemicals, and others remove certain germs. Filters cannot remove some types of harmful substances, so you may also consider other water treatment systems.

Is bottled water better than filtered water?

Filter water vs. bottled water. Although both filtered water and bottled water can provide healthier, better-tasting water, the cost-effectiveness and smaller environmental impact of filtered water beats out bottled water at every turn.

What is the healthiest water to drink?

Alkaline water may be one of the healthiest waters to consume. The pH level of regular drinking water is a neutral 7. Alkaline water has a pH level of 8 to 9.5. It contains properties that may even protect your body from free radicals, which are often linked to inflammation and many chronic diseases.

Can unfiltered water make you feel sick?

Some of the possible health effects of contaminated water include: Gastrointestinal illness. Nausea, vomiting and diarrhea can be caused by microorganisms in drinking water. Illness can begin soon after the person is exposed to the contaminated water.

Is it bad to drink unfiltered water from the fridge?

Yes, fridge water is safe to drink if your refrigerator is hooked up to city-treated water and the water's safety is not compromised. If you are under a boil water advisory, you should not drink or cook with water that comes out of your fridge without boiling it first.

Which type of water is not good for health drinking?

Long-term consumption of distilled water might lead to mineral deficiencies since it doesn't replenish the body's mineral needs. It's generally safe to drink distilled water occasionally, but it's wise to ensure your diet provides adequate minerals as well.

Which water has no chemicals?

Distilled water: Distillation is used to create distilled water. Water is boiled, and the steam is condensed back into a liquid. This method removes most contaminants and minerals, resulting in pure water often used in laboratories or for medical applications.

Is lemon water good for you?

Lemon water is a healthy choice if you struggle to stay hydrated. Water is vital for our survival so it's important to make sure you're getting enough. Adding lemon means you'll also benefit from the vitamin C, which helps the body fight off colds and supports healthy skin, as well as preventing kidney stones.

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