Is Rice a Source of Arsenic Poisoning?

August 1, 2017
arsenic poisoning - Dr. Axe

Arsenic poisoning is probably the last thing on your mind when you dive into a brown rice stir-fry or give a baby his or her first taste of solid food. Scientists are now saying, though, that the issue needs to be on your radar, particularly when it comes to rice ingredients in baby food.

In fact, in late April 2016, researchers at Dartmouth College found that urinary inorganic arsenic levels in babies who ate rice-based cereals and snacks were much higher compared to babies who didn’t eat rice-containing foods. This is an important finding, given that 80 percent of babies eat rice cereal within their first year of life. Previous studies suggest that exposure to arsenic early in life may lead to adverse developmental effects. (1) Arsenic in rice isn’t the only arsenic exposure threat, but it consistently tests high because rice plants absorb 10 times more arsenic than other grain plants. (2)

Inorganic vs. Organic Arsenic

First, just a note on terminology. There are two types of arsenic:

Organic arsenic simply indicates that a carbon atom is part of the arsenic bond. Common sources include fish and crustaceans.

Inorganic arsenic  is abundant in nature and without a carbon atom in the arsenic bond. This type is considered much more toxic to the human body. Unfortunately, it’s often found in rice and rice ingredients, apple juice, and other foods and drinks. These compounds are oftentimes found in manufactured items like pressure-treated wood, although pressure treated wood is more likely to contain nano-copper today. Both organic and inorganic forms are regularly discovered in soil and groundwater, as well as in many of the foods that we regularly eat. (3)

Arsenic Poisoning Threats

While the concept of low-level arsenic poisoning from rice sources is nothing new, the Food and Drug Administration (FDA) has been slow to take action. Until now. In Spring 2016, the government agency released a proposed limit for inorganic arsenic in infant rice cereal. People consumer the most rice relative to their weight when they are just 8 months old, thanks to the rice in popularity of of rice-based baby cereals and snacks.

Through a draft guidance to industry, the FDA is proposing a limit or “action level” of 100 parts per billion (ppb) for inorganic arsenic in infant rice cereal. This is parallel to the level set by the European Commission (EC) for rice intended for the production of food for infants and young children. (The EC standard concerns the rice itself; the FDA’s proposed guidance sets a draft level for inorganic arsenic in infant rice cereal.) FDA testing found that the majority of infant rice cereal currently on the market either meets, or is close to, the proposed action level.

The agency expects manufacturers can produce infant rice cereal that meet or are below the proposed limit with the use of good manufacturing practices, such as sourcing rice with lower inorganic arsenic levels. (4)

While acute arsenic poisoning leads to red blood cell destruction, convulsions, coma and sometimes death, chronic, low-dose exposure to inorganic arsenic has been linked to certain cancers, skin lesions, cardiovascular disease, neurotoxicity and diabetes. (5)

5 Fast Facts About Arsenic Poisoning & Exposure

  • In the general U.S. population, the main source of arsenic exposure is via ingestion of food containing arsenic. (6) Groundwater sometimes harbors arsenic, making it important for well users to get water tested every few years and find appropriate filtration systems if necessary.
  • The National Toxicology Program’s Thirteenth Report on Carcinogens lists arsenic as a cancer-causing agent because it’s been shown to cause bladder, kidney, liver, lung and prostate cancers. (7, 8)
  • Brown rice has about 80 percent more inorganic arsenic compared to white rice, but contains many more nutrients. For that reason, researchers don’t suggest switching completely to white rice, but using arsenic-reducing cooking tips found below.
  • Consumer Reports testing found that basmati rice grown in California contained the lowest levels of arsenic; all types of rice, except sushi and quick-cooking rice, from Texas, Louisiana, and Arkansas contained the highest levels of inorganic arsenic in Consumer Reports testing. (9)
  • Hyraulic fracturing, or “fracking,” a controversial form of natural gas extraction, may mobilize arsenic underground and in aquifers, potentially threatening groundwater supplies. (10)

Foods & Drinks Sometimes High in Arsenic

Dairy- & Gluten-Free Foods

As we now know, it’s not just rice, but rice ingredients in processed foods, too, that lead to unsafe exposures to arsenic. Aside from baby food, watch out for rice milk and gluten-free processed foods and sweeteners that use rice ingredients to replace wheat or dairy ingredients.

Apple & Grape Juice

Apple juice is another source of toxic arsenic. Consumer Reports testing looked at apple juice 88 samples from 28 brands of apple and grape juice, Consumer Reports discovered the following that about 10 percent of the samples contained arsenic levels that exceeded federal drinking-water standards. Why grape juice? Check your labels. Many brands use apple juice as a filler juice. (11)

Red wine

In 2015, University of Washington researchers released a study showing that 98 percent of red wines tested contained arsenic levels exceeding U.S. drinking water standards. Scientists analyzed 65 red wines from the four biggest wine-producing states: California, Washington, New York and Oregon. The conclusion? If wine is a person’s only source of arsenic in the diet, it may not pose a health hazard. (Assuming people not heavy drinkers.) However, it’s wise to analyze your diet for sources of arsenic. If you’re eating and drinking several arsenic-rich selections, it’s best to cut some exposures out. (12)

How to Avoid Arsenic in Food

Aside from eating less rice and foods containing rice ingredients, there are a few tricks you can use to significantly lower arsenic levels in rice.

  1. Cook rice like pasta. Instead of following cooking instructions on rice packages, cook it by adding much more water. (Kind of how you’d cook pasta — 6 to 10 parts water per one part rice.) Scientists proved this method could reduce arsenic levels in rice by up to 40 percent. It could, however, also lower levels of some rice nutrients, too. (13)
  2. Researchers from the UK found that cooking rice in a coffee pot reduced arsenic by up to 85 percent. (14)
  3. Replace rice with quinoa, a low-arsenic grain that is also rich in protein. Buckwheat and millet are two other low-arsenic options.
arsenic poisoning - Dr. Axe

Final Thoughts on Arsenic Poisoning & Rice

Rice is a food staple around the world, but because the plant absorbs 10 times more arsenic than other grain plants, it often tests high in inorganic arsenic, the most dangerous form of the heavy metal. This type of arsenic is linked to certain cancers, developmental problems, cardiovascular disease, skin lesions and diabetes, among other health problems.

Although government agencies have been aware of this for many years, the FDA only proposed a maximum limit for arsenic in food in April 2016, and it only involves baby rice cereals. Luckily, there are several ways to reduce arsenic in rice, particularly healthier brown rice. These include cooking rice in lots of water and choosing rice grown in areas that produce products generally lower in arsenic.

But given the health threats associated with this risky crop, it only makes sense to set maximum allowable levels for arsenic in other foods, too. These include things like crackers, pastas and breakfast cereals where manufacturers can use other ingredients as substitutes for rice flour, bran or syrup. Environmental Working Group also advocates for funding research into growing techniques and technologies that will lower the amount of arsenic rice plants absorb. (14)

Read Next: Popular Allergy, Insomnia Drugs Linked to Dementia

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  1. Tony on

    OK, we should try and avoid rice milk and drink coconut milk instead. Fair comment, except that the only brand of coconut milk I can easily obtain is laced with carrageenan, which is an equally unhealthy product, and it certainly disagrees with my GI tract. Even the more difficult-to-get alternatives like hemp milk has this stuff in it. The rice milk brand available to me in the UK is about the only readily available non-dairy option that doesn’t have carrageenan. Or can someone suggest something better?

    • Kary on

      You can also make your own rice milk by cooking the rice as per the recommendations in this article and processing it according to the instructions of one of the many rice milk recipes available on the net.

  2. Lisa on

    It’s getting harder and harder to find food that doesn’t contain GMO’s, Pesticides, Hormones, and now Arsenic in them. What is a person to do?
    I do buy Organic whenever I can. It sounds like it doesn’t matter with rice though. Organic or not, it still contains arsenic, is that right?


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