Updated: 10/19/23
Have you been feeling more fatigued than usual? Do your muscles ache and feel weak, even after resting? These are all potential signs of mercury poisoning, an environmental hazard that can have serious consequences if left untreated. Mercury poisoning is a result of consuming too much methylmercury or other forms of mercury, both naturally occurring toxins found in certain fish and seafood products. Thankfully, there are proactive steps you can take to reduce your risk: Take nutritional supplements designed to support the healthy functioning of your body’s cells and detoxifying systems. By understanding what causes mercury toxicity and staying informed about how to protect yourself from harmful exposure levels, you can rest easy knowing that you’re doing everything possible to keep yourself safe!
What Is Mercury Poisoning?
Mercury is a natural element in the Earth’s crust, water, rocks and soil. Currently, the largest mercury deposit on Earth is cinnabar, also called mercuric sulfide. Mercury is a heavy metal that can be found in the environment. It is used in many products such as thermometers, dental fillings, light bulbs, and batteries. Although mercury is toxic, it can be present in various forms and concentrations in different parts of our environment. Long-term exposure to high levels of mercury can lead to serious health conditions.
Mercury can take multiple forms: elemental (liquid), organic (methylmercury) and inorganic. Organic mercury is the most common form and most often, humans come in contact it through their diets. Each of these forms may affect patients differently. They may have different toxicity levels and different effects on the nervous, immune and digestive systems. They may also cause symptoms on the skin and in the kidneys and lungs.
Humans encounter mercury every day. There are trace amounts in food, especially in fish and shellfish. However, trace amounts usually do not cause an ill effect on health. But humans may ingest excess mercury, which can cause mercury poisoning if it reaches toxic levels in the body. Depending on the type of mercury, symptoms may differ per individual. However, the condition mainly affects the brain and nervous system. Anyone can suffer from it, but pregnant women, children and infants are more vulnerable to damage.
Symptoms of Mercury Poisoning
Despite the different forms, there is a collection of general symptoms. According to the U.S. Food & Drug Administration, the illness can cause both physical and behavioral symptoms (x, x):
- Muscle weakness & tremors
- Changes in vision & hearing
- Skin discoloration
- Memory loss
- Tingling or numb sensation
- Irritability
- Depression
- Shyness
- Chest pain
- Weight loss
- Respiratory changes
- Digestive issues
- Kidney damage
In addition, each type of mercury may cause different symptoms. Doctors may use these symptoms to determine what kind of mercury is causing the illness, in order to formulate an effective treatment regimen.
Organic Mercury
Most of the time, humans accumulate this type of mercury from eating seafood. According to the United States Environmental Protection Agency, organic mercury can cause weak muscles, impaired coordination and difficulties speaking, walking and hearing on top of the general symptoms.
It also interferes with fetal development during pregnancy. Unborn infants may be more vulnerable to brain and nervous system damage than adults. It can cause impairments in cognitive function, fine motor skills, language development, attention, memory and visual spatial skills.
Elemental Mercury
Elemental mercury is in different consumer products, such as thermometers. If it spills or if the object containing it breaks, it can contaminate the air. Patients may inhale it as a vapor and then absorb it into the lungs, Elemental mercury poisoning can cause insomnia, headaches and weak muscles. It can also cause behavioral changes like mood swings and nervousness and interfere with the patient’s nerve responses.
Inorganic Mercury
In addition to the nervous system, inorganic mercury can affect the gastrointestinal system and the kidneys. Drinking contaminated water can cause kidney damage over time. In addition to memory loss and weak muscles, inorganic mercury can also cause mental disturbances, mood swings and dermatitis.
Mercury Poisoning from Fish Symptoms
The symptoms of mercury poisoning from fish may take some time to develop, leading to a delay in diagnosis and treatment. Some common symptoms include headaches, fatigue, muscle weakness, and tremors, over time. Mercury poisoning can also affect the nervous system and cause cognitive and neurological damage. In severe cases, it can lead to coma or death.
Mercury Poisoning from Fillings Symptoms
Symptoms of mercury poisoning from dental fillings can range from mild to severe, and they can vary in duration and intensity. The most common symptoms of mercury poisoning from fillings include: headaches and migraines, fatigue and weakness, mood swings and irritability, muscle weakness and joint pain, nausea and digestive problems, memory loss and brain fog, skin rashes and allergies, and vision and hearing impairment.
Risk Factors for Mercury Poisoning
Although mercury already exists naturally in the environment, there are certain risk factors that can increase the risk of toxic exposure that can cause poisoning. According to the World Health Organization, most of the time contaminated seafood or occupational exposure causes poisoning.
Contaminated Seafood
Eating contaminated seafood is a common that mercury accumulates in the blood, specifically methylmercury when it seeps into the water. Sea creatures can consume it but when another animal consumes that creature, the mercury transfers to the other host. Small creatures like shrimp consume methylmercury and if another creature or human eats it the mercury stockpiles in their system.
Occupational Exposure
There are several different industries that use mercury. For example, it is in thermometers, batteries, electric switches and barometers. It is also used to make chlorine gas and sodium hydroxide (caustic soda or lye). People who work in certain environments may be at risk of exposure. Environments that manufacture electrical equipment and automotive parts and. Chemical processing plants and mines use it as well. People who work in health services like medical or dental environments may also be at risk for exposure.
Dental Fillings
Silver dental fillings contain mercury, which can gradually release into the bloodstream over time.
Consumer Products
Research claims that certain consumer products can also expose patients to mercury. However, health care officials are attempting to reduce and eventually completely eliminate this chemical in products like:
- Batteries
- Thermometers
- Barometers
- Lamps
- Certain types of lightbulbs
- Pharmaceuticals
- Skin-lightening cosmetic products
- Electrical switches
- Some jewelry
- Some vaccines
- Medical equipment
Mercury Poisoning and Autism
The most common source of mercury in the past was thimerosal, a preservative used in vaccines. Thimerosal has been used in vaccines since the 1930s to prevent bacteria growth, but it contains methylmercury, which is a toxic substance. Although there is no conclusive evidence as to whether thimerosal causes autism, many parents believe that vaccines were the cause of their child’s autism. However, it’s essential to note that thimerosal was removed from nearly all childhood vaccines in 2001, except in flu shots. Nonetheless, it’s a wise idea to talk to your healthcare provider or pediatrician about thimerosal-free vaccines.
Recent studies have found that prenatal exposure to mercury significantly increases the risk of autism. Mercury enters the fetal brain, damages the developing neurons, and impairs brain function, leading to autism-like behavior. So, if you’re pregnant, avoid consuming high-mercury fish such as shark, swordfish, king mackerel, and tilefish. It’s also wise to limit your consumption of tuna, which contains lower levels of mercury.
Mercury Poisoning and Sushi
Traditional sushi rice often includes vinegar, salt, and sugar, which can increase the absorption of mercury in the body. Soy sauce and wasabi can also affect the body’s ability to eliminate mercury by altering gut bacteria. However, this doesn’t mean that you have to avoid sushi altogether. With some careful choices and knowledge, you can still enjoy sushi without putting your health at risk. One way is to choose low-mercury fish, such as salmon, shrimp, crab, and eel. These fish are generally safer and less likely to contain high levels of mercury. It’s also important to limit your sushi intake to once or twice a week and vary your seafood choices to prevent mercury build-up. You can also look for sushi restaurants or fish markets that source their fish sustainably and test for mercury levels.
Diagnosing Mercury Poisoning
If you think you or someone you know might have been exposed to mercury, it’s important to visit a medical professional as soon as possible. There are a range of medical tests that can be done to determine whether or not someone is suffering from mercury poisoning. These can include blood tests, urine tests, and hair analysis. These tests can determine whether or not mercury is present in the body and can help medical professionals figure out what treatments might be necessary.
Treatment for Mercury Poisoning
Mercury is toxic. Currently, there is no complete cure but patients with mercury poisoning should avoid risk factors to avoid the chemical, including changing their environment if necessary. Doctors will attempt to treat the long-term effects individually. It’s important to seek medical attention as soon as symptoms appear.
Chelation Therapy
Chelation therapy is a medical procedure that involves using a synthetic amino acid called EDTA (ethylenediaminetetraacetic acid) to remove heavy metals like mercury from the body. EDTA is administered either orally or intravenously and binds to mercury and other metals, making them soluble and excretable through the urine. Multiple studies have shown that chelation therapy can significantly reduce mercury levels in the blood and tissues and improve symptoms of mercury poisoning, such as dysgeusia, skin rashes, tremors, and memory problems. However, chelation therapy is not without risks and side effects, such as hypocalcemia, hypotension, and kidney damage, so it should only be done under the supervision of a qualified healthcare provider.
Sauna Therapy
Sauna therapy is a natural way to raise your body’s temperature and activate your sweat glands, which can help to eliminate mercury and other toxins through your skin. It has been shown to increase the excretion of heavy metals like mercury, lead, and cadmium, as well as improve cardiovascular function, reduce inflammation, and boost immune function. You can enjoy sauna therapy at home, in a gym, or in a spa, and you can choose from various types of saunas, such as traditional Finnish saunas, infrared saunas, steam saunas, and hot yoga studios. However, you should drink plenty of water before, during, and after sauna therapy to prevent dehydration and replace lost electrolytes.
Supplements for Mercury Poisoning Detox
In addition to proper medical treatment, some supplements may be able to help detoxify the body and eliminate heavy metals from the blood. However, there is limited research on their effectiveness. Always consult a doctor before taking any supplements. They are not a cure for any medical condition, but supplements can benefit overall health.
Chlorella Blue-Green Algae
Chlorella is a type of algae that contains large amounts of protein, carbohydrates, fats, vitamins and antioxidants. Research states that these antioxidants can boost the immune system and control inflammation in conditions like asthma or chronic obstructive pulmonary disease (COPD). It may also improve blood circulation and manage high blood pressure because it contains potassium and calcium that help keep the arteries clear.
In addition, researchers claim that it may be effective for detoxification. Aquatic plants like algae and chlorella may be able to bind to toxic trace metals and help extract them from the body. Specifically, it may be able to remove it from the gastrointestinal tract, muscles, ligaments, bones and connective tissue. As a food material, it can help detoxify toxic chemicals and heavy metals like mercury. As a dietary supplement, the recommended dosage for chlorella blue-green algae powder is 3,200 mg up to three times a day. In its capsule form, the recommended dosage is six capsules up to three times a day. Consult a doctor before taking this supplement.
Omega-3 Fatty Acids
Omega-3 fatty acids are very important to overall health. The body breaks down fat into fatty acids that it can use and absorb. Essential fatty acids are those that the body cannot make on its own. According to research, fatty acids may be able to help patients with methylmercury exposure. The researchers noticed a positive correlation between prenatal exposure and nutrient intake.
Since the body cannot make all fats, patients have to consume them with food. However, some food sources that contain fat are not ideal for overall health. Omega 3-6-9 supplements combine these fats in a way that produces a more positive effect on health. They also contain fish oil, flaxseed oil and evening primrose oil. As a dietary supplement, the recommended dosage is three softgels once or twice daily, or as directed by a doctor.
Vitamin C
Vitamin C is a powerful antioxidant that has been shown to prevent and reverse the damage caused by mercury poisoning. It helps to neutralize the free radicals that exist when mercury interacts with other molecules in the body. Additionally, vitamin C has been found to increase the excretion of mercury from the body. It is recommended that you take at least 500mg of vitamin C supplements daily to combat the toxic effects of mercury.
Antioxidants
According to research, antioxidants like vitamin E and vitamin C may help detoxify the body and get rid of harmful chemicals, including heavy metals like mercury. Vitamin E powder is a group of antioxidant compounds in eight different chemical forms. Vitamin E deficiency can cause neuropathy when neurons degenerate and interfere with nervous system function. It is important for cognitive health, potentially protecting the brain from Alzheimer’s disease and other forms of dementia. Vitamin C is also a powerful antioxidant and anti-inflammatory agent that can help protect the body from oxidative damage that causes disease. These properties may make vitamin C an effective option for detoxifying the body as well.
As a dietary supplement, the recommended dosage for vitamin E powder 700IU is 350 mg with food and water. The recommended dosage for vitamin C / ascorbic acid is 1,000 mg per day. Consult a doctor before taking either of these supplements to confirm safety.
Alpha-Lipoic Acid (ALA)
Alpha-lipoic acid (ALA) is a powerful antioxidant that is known for its ability to chelate metals, including mercury. It is also to protect the brain from the damaging effects of mercury. ALA can be naturally in some foods, including spinach, broccoli, and tomatoes. However, for therapeutic purposes, it is advisable to take ALA in the form of supplements.
Milk Thistle
Native to Europe, milk thistle is related to the daisy and it is an important ingredient in alternative and herbal medicine. Historically, researchers have used it to treat snakebites, depression and jaundice. Research states that milk thistle may also help protect the liver from poisons from toxins, including alcohol, chemotherapy drugs, acetaminophen overdose and radiation poisoning. The recommended dosage for milk thistle extract powder is 250 mg each day, or following a doctor’s instructions.
N-Acetyl L-Cysteine (NAC)
N-Acetyl L-Cysteine (NAC) is an amino acid that is known for its ability to support the production of glutathione, a powerful antioxidant that plays a crucial role in the detoxification of mercury and other toxins in the body. NAC is to help reduce inflammation and improve immune function. You can take NAC in the form of capsules or tablets.
Garlic
Garlic is another powerful natural remedy for mercury poisoning due to its abundant sulfur compounds, specifically allicin, which can bind to mercury and remove it from the body. It also has anti-inflammatory, antibacterial, and immune-stimulating properties that enhance detoxification and overall health. A study found that garlic supplementation decreases mercury levels in fish but improves antioxidant enzyme activity in rats. To incorporate garlic into your diet, you can add it as a seasoning to your favorite dishes, roast it as a snack, and make a garlic and lemon dressing for salads.
Selenium
Selenium is a mineral that is essential for many bodily functions, including thyroid health and immune system support. It is also effective at reducing the toxic effects of mercury. Selenium works by binding to the mercury and preventing it from damaging the body’s cells. Studies have shown that supplementing with 200mcg of selenium per day can help reduce the levels of mercury in the body.
Spirulina
Spirulina is another type of algae that is known for its detoxifying properties. It is rich in vitamins, minerals, and antioxidants that can help boost your immune system and protect your body from mercury poisoning. Spirulina is also a good source of protein, making it an ideal supplement for vegetarians and vegans. You can take spirulina in the form of capsules, tablets, or powder.
The Bottom Line
Humans are exposed to mercury in their everyday lives and most people have trace amounts of mercury in their blood already. However, when it accumulates it is toxic and can cause long-term damage. Mercury takes three forms: environmental, organic and inorganic. Each type can cause different symptoms, but generally symptoms include memory loss, personality changes, tremors and vision and hearing impairments. Toxicity may also cause headaches, insomnia, lack of coordination and weak muscles.
People may be exposed to toxic mercury levels by eating contaminated seafood, working in occupations that involve mercury and even using consumer products. Mercury exists naturally in soil and water and it can contaminate fish, which then transfer the chemical to humans. Working in the medical or dental field, mines and chemical processing plants also increase the risk for exposure. Products like batteries, thermometers and electrical switches may also contain mercury.
There is no specific treatment for mercury poisoning, but doctors aim to address its long-term complications individually. Natural herbs and vitamins can also bind to toxic substances in the blood and help eliminate them from the body. However, they are not an adequate treatment for mercury poisoning or any other health condition. Instead, they may help support certain processes in the body and improve overall health. Consult a doctor before adding supplements to a dietary regimen.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease
