Beware of this naturally arsenic-rich rice 🍚

Brown rice, also known as whole grain rice, often perceived as healthier, contains higher levels of arsenic than white rice for American consumers. This situation is particularly concerning for children under 5 years old, who are more vulnerable to the toxic effects of arsenic.


A recent study from Michigan State University, published in Risk Analysis, reveals that brown rice contains more inorganic arsenic than white rice. Although the observed levels don't pose significant risks for most adults, they could be concerning for young children.

Arsenic, naturally present in the Earth's crust, is particularly absorbed by rice due to flooded growing conditions. Brown rice, while nutritious, retains more arsenic in its outer bran layer, unlike white rice which is stripped of it during refining.

Researchers analyzed rice consumption data in the United States, highlighting regional differences in arsenic levels. Rice grown in the U.S. generally contains less inorganic arsenic than imported rice, but variations are notable.

Felicia Wu, co-author of the study, emphasizes the importance of not demonizing brown rice, which is rich in fiber and nutrients. She calls for additional research to evaluate nutritional benefits versus potential risks of arsenic exposure.

The public health implications are significant, especially for at-risk populations like young children and some immigrant communities. The FDA is considering regulating arsenic levels in foods, including rice, as part of its 'Closer to Zero' initiative.

This study invites nuanced reflection about dietary choices, reminding us that health isn't simply about 'good' or 'bad' foods. The balance between nutrition and food safety remains a subject to approach with caution.

Why does rice absorb more arsenic than other cereals?

Rice is grown in flooded fields, a condition that promotes arsenic absorption from the soil. Unlike other cereals, rice's root system is particularly effective at extracting this toxic element from its environment.

Inorganic arsenic, the most toxic form, concentrates in the outer parts of the grain. This is why brown rice, being less processed, contains more than white rice. Growing methods and soil characteristics also influence these levels.

Ongoing research aims to develop less absorbent rice varieties or cultivation techniques that reduce arsenic. These advances could help reconcile the nutritional benefits of brown rice with lower exposure to contaminants.

What are the health effects of arsenic on young children?

Arsenic is particularly harmful to young children's cognitive development. Chronic exposure can lead to growth problems, immune deficiencies, and increased risk of diseases later in life.

Children consume proportionally more food per pound of body weight than adults, exposing them more to contaminants like arsenic. Their developing systems are also less capable of processing and eliminating these substances.

Current recommendations suggest diversifying grain sources for young children and favoring rice grown in low-arsenic regions. Cooking rice in a large volume of water can also reduce its arsenic content.