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Rice is bad for you. That's the latest from Consumer Reports. Many foods, like eggs, butter, coffee, etc. have been vilified and then exalted; alternately bad for your health, then good. The latest food victim is rice, a grain that one half of the world's population depend upon for their very survival.
Now enter Consumer Reports studies about high levels of arsenic rice, and a conclusion by Consumer reports that you should limit the amount of rice you should eat to two servings a week. Good luck with that in Asia. Are they all dying from arsenic poisoning?
This page presents an explanation of the arsenic in rice issue, links to the reference sources and a bottom line conclusion.
A known carcinogen, inorganic arsenic also has been associated with skin lesions, developmental effects, cardiovascular disease, neurotoxicity, and diabetes. Chronic arsenic exposure can initially cause gastrointestinal problems and skin discoloration or lesions. Signs of chronic low-level arsenic exposure can be mistaken for other ailments such as chronic fatigue syndrome.
Inorganic arsenic, the sum of arsenite (As+3) and arsenate (As+5), is generally considered more toxic than organic arsenic, and some organic species in food (such as arsenobetaine, commonly found in seafood) are considered nontoxic (
Arsenic is a naturally occurring substance and naturally finds its way into many foods, from apple juice and rice to meats like chicken, but usually in trace amounts. The FDA says rice is a leading dietary source of inorganic arsenic, both because of how commonly it's consumed and because as rice plants grow, the plant and grain tend to absorb arsenic more readily than other food crops. So, why or where is arsenic present in the soil where rice is grown?
Older pesticides (now banned) contained arsenic, which led to a build-up of arsenic in soils, which can still find its way into rice, especially since many forms of arsenic are water soluble and rice is often grown in wet rice paddies.. Arsenic was also used in a preservative for pressure-treating wood (that was banned in 2003) , which is commonly used for decks and playground equipment. Run-off from these operations can make its way into rice paddies. Consumer Reports has an interactive map of the known contamination of groundwater here.
Imported rice, from countries with no or lax standards or poor enforcement, like China (from which much apple juice is imported to the U.S.) also accounts for the presence of some arsenic in our food.
Consumer Reports reported in that rice, including organic rice baby cereal, rice breakfast cereals, Gluten-free foods made with rice, Rice milk, Rice-based baby formula, Brown rice syrup, Rice-based snack foods, brown rice, and white rice contain arsenic, many at levels that should concern consumers.
According to WebMD , "studies by Scottish researchers have found higher levels of arsenic in rice grown in the U.S. than in basmati or jasmine rice from Thailand or India. The highest levels of arsenic in U.S.-grown rice came from Southern states. The lowest levels were detected in rice grown in California. Seafood also has high levels of arsenic, though most experts believe the form of arsenic in seafood to be nontoxic. "
The FDA has specifically tested for the presence of inorganic arsenic, analyzing nearly 200 samples of rice and rice products and is collecting about 1,000 more. Since rice is also included in many other fod products, these samples included rice products such as cereals, rice beverages and rice cakes. The arsenic levels can vary greatly from sample to sample, even within the same product. FDA's testing of the initial samples found these average levels of inorganic arsenic in micrograms (one millionth of a gram):
The FDA concluded, based on data and scientific literature available now,
that consumers should not change their consumption of rice and rice products
at this time, but that people eat a balanced diet containing a wide variety
"We understand that consumers are concerned about this matter. FDA is committed to ensuring that we understand the extent to which substances such as arsenic are present in our foods, what risks they may pose, whether these risks can be minimized, and to sharing what we know," says FDA Commissioner Margaret A. Hamburg, M.D. The FDA said that once it have completed its analysis of about 1,200 rice products, the agency will analyze these results and determine whether or not to issue additional recommendations.
How big is the risk is one issue that truly falls into the category of "no one knows". There simply aren't enough studies from enough credible organizations looking at enough parameters to make a conclusion. Stay tuned. There will be follow-up studies, and we will report them here.
Published studies, including research by the FDA, indicate that cooking rice in excess water (from six to 10 parts water to one part rice), and draining the excess water, can reduce 40 to 60 percent of the inorganic arsenic content, depending on the type of rice. The new FDA research also shows that rinsing rice before cooking has a minimal effect on the arsenic content of the cooked grain. Rinsing does, however, wash off iron, folate, thiamin and niacin from polished and parboiled rice. The tables below provide additional information on the study's findings..
Many of the references are found by links throughout the article above, but are present here for clarity: