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Organic brown rice syrup could contain arsenic

Dartmouth researchers conducted a study to determine the concentrations of arsenic in commercial food products. The results were alarming

High fructose corn syrup has been criticized as a highly processed substance that is more harmful than sugar and is a substantial contributor to epidemic obesity. Unfortunately, organic brown rice syrup is not without its faults.

Dartmouth researchers and others have previously called attention to the potential for consuming harmful levels of arsenic via rice, and organic brown rice syrup may be the latest culprit on the scene.

Dartmouth researchers conducted a study to determine the concentrations of arsenic in commercial food products containing organic brown rice syrup including toddler formula, cereal/energy bars, and high-energy foods used by endurance athletes.

The results were alarming. One of the infant formulas had a total arsenic concentration of six times the U.S. Environmental Protection Agency's (EPA) safe drinking water limit of 10 parts per billion (ppb) for total arsenic. Cereal bars and high-energy foods using organic brown rice syrup also had higher arsenic concentrations than those without the syrup.

Jackson and his colleagues purchased commercial food products containing organic brown rice syrup and compared them with similar products that didn't contain the syrup. Seventeen toddler formulas, 29 cereal bars, and 3 energy "shots" were all purchased from local stores in the Hanover, N.H., area.

Of the 17 toddler milk formulas tested, only two had listed organic brown rice syrup as the primary ingredient. These two formulas, one dairy-based and one soy-based, were extremely high in arsenic, more than 20 times greater than the other formulas. The amount of inorganic arsenic, the most toxic form, averaged 8.6 ppb for the dairy based formula and 21.4 ppb for the soy formula.

This is of concern because these concentrations are comparable to, or greater than, the current U.S. drinking water limit of 10 ppb, and that limit does not account for the low body weight of infants and the corresponding increase in arsenic consumption per kilogram of body weight.

The Dartmouth researchers also tested 29 cereal bars and three types (flavors) of an energy product obtained from a supermarket. Twenty-two of the bars listed at least one of four rice products -- organic brown rice syrup, rice flour, rice grain, and rice flakes -- in the first five ingredients. The cereal bars ranged from 8 to 128 ppb in total arsenic; those that had no rice ingredients were lowest in arsenic and ranged from 8 to 27 ppb, while those that did contain a rice ingredient ranged from 23 to 128 ppb total arsenic.

by Aliona Avduhova
05 march 2012, Technical Area > Organic

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