How to Detox Arsenic from Your Body

Reducing arsenic in your body begins by stopping exposure; much of a recent exposure may clear over days, but total clearance time is uncertain. Use the heavy metal detox tool to organize questions about exposure, not to diagnose poisoning or choose treatment. For broader context, see the heavy metal detox guide.

Where does arsenic exposure come from?

Arsenic occurs naturally in soil and rock and can enter groundwater. Drinking water is an important possible source, particularly for people who use private wells. Arsenic has no reliable taste or smell, so water can look and taste normal even when it contains it.

Food can also contribute to exposure. Rice can take up arsenic from soil and water, while seafood can contain forms of arsenic that are generally less harmful than the inorganic form. Certain jobs involving mining, smelting, pesticides or other arsenic-containing materials can add exposure through dust or fumes.

The source and chemical form matter. A clinician or poison control center can help assess whether an exposure is concerning and which tests are appropriate.

How does the body handle arsenic?

The liver changes many forms of arsenic into compounds that the kidneys remove in urine. The lungs and gut also help eliminate waste generally, while sweat removes only trace amounts. Drinking water supports normal hydration, but it does not make the body rapidly purge arsenic.

Clearance varies with the form and amount of arsenic, whether exposure continues, and a person’s kidney function. Some arsenic can remain in tissues such as hair and nails for longer. Health effects from a substantial or prolonged exposure may persist even after exposure stops, so a lower test result does not necessarily mean every effect has resolved.

What steps reduce arsenic exposure?

1. Recognize urgent exposure. Seek emergency care immediately for severe symptoms or a significant recent exposure; do not wait for a test result. For less clear situations in the United States, call Poison Control at 1-800-222-1222 for advice. Do not induce vomiting unless a poison-control professional tells you to do so.

2. Stop the suspected exposure. Switch to a verified safe water source for drinking, making ice, preparing food and mixing infant formula if your water is suspected or confirmed to contain arsenic. If a workplace material is involved, leave the exposure area and tell the workplace safety officer or your supervisor. Follow poison control’s advice about contaminated clothing or skin.

3. Check the water source. Ask your water utility for its water-quality report, or use an appropriately certified laboratory to test a private well. In the United States, the EPA maximum contaminant level for arsenic in regulated public drinking water is 0.010 mg/L, or 10 ppb. This limit applies to public water systems; private well owners are responsible for checking their own water. A result below the limit does not mean exposure is zero.

4. Choose treatment carefully. If treatment is needed, select a system certified for arsenic reduction and check that it is appropriate for the arsenic form in your water. Maintain it as directed and retest the treated water to confirm it works. Do not assume that a standard pitcher filter removes arsenic, and do not boil contaminated water: boiling does not remove arsenic and can concentrate it as water evaporates.

5. Arrange medical assessment. Tell a clinician what the suspected source is, when and how exposure may have occurred, and whether anyone else was exposed. Bring water results, workplace information or product labels if available. The clinician can decide whether testing, monitoring or specialist care is needed.

6. Use medical treatment only when indicated. For some significant arsenic poisonings, clinicians use prescription chelation medicines that bind metals for removal. Chelation is not appropriate for every exposure and can cause harm; it requires professional assessment and monitoring. Do not attempt it with products sold as home detox kits.

The steps do not guarantee a particular clearance time. If the exposure is ongoing, removal from the body can be offset by continued intake, making source control the priority.

Do foods, detox drinks or binders remove arsenic?

No food or drink has been shown to reliably detox arsenic from the body. Detox water, juices and large amounts of fluid are not substitutes for stopping exposure or getting medical care. Drink enough verified safe water for normal hydration rather than forcing excess fluid.

A varied diet can help avoid relying heavily on one food that may contribute arsenic. For example, vary grains rather than depending on rice alone, especially when feeding young children. Dietary changes can reduce future exposure, but they are not a treatment for poisoning.

Avoid supplements or binders marketed to remove arsenic unless a clinician specifically recommends them. Products such as charcoal, clay and unapproved chelation supplements have not been established as a safe, reliable home treatment for arsenic exposure; they can also interfere with medicines or delay appropriate care. Activated charcoal is not a dependable treatment for arsenic poisoning, so ask poison control rather than taking it on your own.

What tests check for arsenic exposure?

A clinician may order a urine arsenic test, sometimes using a 24-hour collection, to assess recent exposure. A laboratory can also measure different forms of arsenic, known as speciation. This matters because some forms found in seafood can raise a total urine arsenic result without carrying the same concern as inorganic arsenic.

Ask the clinician or laboratory whether to avoid seafood before a planned test and for how long. Tell them if you recently ate seafood, but do not delay urgent care or testing to change your diet. A urine result must be interpreted alongside the timing, symptoms and likely source of exposure; it does not establish exactly how much arsenic is stored in the body.

Blood testing may be useful in some recent or severe exposures, but it is not always the best test for an older exposure. Hair and nail tests can be affected by contamination from the environment and are not reliable stand-alone proof of poisoning. A clinician or medical toxicologist can help interpret results and decide whether further testing is useful.

Testing the suspected water or workplace source is separate from testing a person. Both may be needed: a water result identifies a potential ongoing source, while a medical test helps assess an individual’s exposure.

When should you see a doctor?

Call emergency services or go to an emergency department immediately after a significant recent exposure, or for severe abdominal pain, repeated vomiting, severe diarrhea, fainting, confusion, seizures, breathing trouble or an abnormal heartbeat. In the United States, call 911 for an emergency. If exposure is suspected but the urgency is unclear, contact Poison Control promptly; symptoms do not have to be present for an exposure to need attention.

Contact a clinician promptly about a confirmed elevated water result, a concerning workplace exposure or persistent symptoms. Pregnant people, infants and children, and people with kidney disease should seek individualized advice because exposure assessment and testing may need special attention. Tell the clinician about all medicines and supplements you take, and do not stop prescribed medication without medical advice.

Stop using the suspected source and any arsenic-detox product while you get guidance. If serious symptoms develop or a significant exposure is suspected, do not wait for a laboratory result before seeking help.