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  5. Arsenic in Food
  1. Environmental Contaminants in Food

Arsenic in Food

Arsenic may be present in food from the environment where foods are grown, raised, or processed. The levels of arsenic in the environment can vary depending on natural geographical makeup and proximity to past or current use or manufacturing of products made with arsenic. For example, arsenic levels are higher in certain soils and rocks and where arsenic-containing pesticides were once used on food crops or from the current use of those pesticides on non-food crops, and pollution from mining, fracking, and coal-fired power plants.

Because arsenic exposure at certain levels can be harmful to health, the FDA monitors and regulates levels of arsenic in foods, including dietary supplements, and cosmetics. While it is not possible to completely prevent arsenic from entering the food supply, for foods that contain arsenic, it may be possible to reduce levels through changes to agricultural or manufacturing practices. By law, food manufacturers have a responsibility to significantly minimize or prevent chemical hazards when needed.

To determine if the level of arsenic in a food is a potential health concern, the FDA considers the toxicity of arsenic and potential exposure based on the level measured in the food and estimated consumption. We also may consider the risks specific to vulnerable subpopulations (e.g., very young children). If the agency finds that the level of arsenic causes a food to be unsafe, we will take regulatory action. This may include working with the manufacturer to resolve the issue, and as necessary, taking steps to prevent the product from entering, or remaining, in the U.S. market.

Among the FDA’s top priorities is maintaining access to foods that are sources of nutrients while limiting consumer exposure to contaminants. Having adequate nutrition is vital to growth and development for babies and children and helps promote health and prevent disease throughout our lifespan. The FDA collaborates with state and federal partners, industry, and other stakeholders to identify and facilitate the implementation of sustainable and effective strategies for growing, sourcing, processing, and manufacturing foods that contain lower levels of environmental contaminants, such as arsenic, while maintaining their nutritional quality and accessibility.

For more information about the FDA’s specific activities to reduce exposure to arsenic, lead, mercury, and cadmium from foods consumed by babies and young children, please visit the Closer to Zero page.

Arsenic in the environment can be taken up by plants and ingested by animals and enter the food supply. It is more common in certain foods and foods grown in geographical areas with higher levels of arsenic. Arsenic can also enter food during processing, for example when contaminated water is added to a food or when processing aids for filtering juices contain arsenic. According to the World Health Organization and the Centers for Disease Control and Prevention, the most common source of high levels of inorganic arsenic is contaminated drinking water. Because private well water is not routinely tested by government agencies, people who get their water from private wells should check their state’s guidelines for recommended testing schedules for arsenic (and other contaminants) and contact their state drinking water well program if a problem is suspected.

Testing results that detect arsenic do not necessarily mean the food should be avoided. Because many of the most nutritious foods can also contain contaminants, consumers should eat a variety of nutrient-dense foods across and within the main food groups of vegetables, fruits, grains, dairy, and protein foods. This is good for nutrition and can also limit exposure to a contaminant from a specific food. In addition, research studies have found that good nutrition can also help protect from the effects of exposure to contaminants.

The FDA’s goal is to limit consumer exposure to arsenic, with a focus on protecting the very young, through developing regulations, action levels, and providing education information. 

Resources from the FDA

Resources from Other Federal Government Agencies

Arsenic is toxic to humans and can affect people of any age or health status. The potential for long-term adverse health effects from consuming food contaminated with arsenic vary depending on the level of arsenic in the food; age of the consumer; length, amount, and frequency of exposure to arsenic in the food; and other exposures happening at the same time—either to arsenic from other sources, or other contaminants or to beneficial nutrients.

Current research indicates that inorganic arsenic is more dangerous than organic arsenic and the health effects from exposure are more severe. Organic arsenic compounds contain arsenic with carbon; and are not related to organic farming practices. Some scientific studies have shown that two forms of organic arsenic found in certain foods, dimethylarsinic acid (DMA) and monomethylarsonic acid (MMA), may be a health concern. The FDA is monitoring emerging research on possible health risks from these forms of organic arsenic and will continue to monitor both inorganic and organic forms of arsenic in foods.

Exposure to high levels of arsenic during times of active brain development is associated with adverse neurological effects such as learning disabilities, behavior difficulties, and lowered IQ. Fetuses, infants, and children are particularly vulnerable to the potential harmful effects from arsenic exposure because of their smaller body sizes and rapid metabolism and growth.

For adults, long-term exposure to inorganic arsenic has been associated with skin disorders and increased risks for skin, bladder, and lung cancers, and for cardiovascular disease. For people of all ages, short-term exposure to very high amounts of inorganic arsenic can result in nausea, vomiting, bruising, and numbness or burning sensations in the hands and feet.

More information about health effects can be found by visiting the Centers for Disease Control and Prevention (CDC).

The FDA tests food for environmental contaminants, like arsenic, to monitor the safety of the U.S. food supply, enforce FDA regulations, inform agency guidance to industry, and provide the public with accurate, science-based information. Testing may be targeted to a specific category of food, such as foods commonly eaten by children under 2 years of age, or to a specific food or food group. Testing may also be conducted in response to reports of elevated contaminant levels in certain foods. Testing may occur at FDA laboratories, laboratories we contract with, or at state laboratories as part of our cooperative agreement with states.

The FDA tests for total arsenic levels in foods. If needed, the FDA can further test samples to determine the levels of organic and inorganic arsenic species. The FDA tests for arsenic through:

In addition, the FDA has been conducting research to optimize testing methods to measure increasingly smaller amounts of these environmental contaminants.

Testing Results

Arsenic in Rice and Rice Products Sampling Results

Arsenic in Apple Juice Sampling Results

Arsenic in Food Intended for Babies and Young Children Sampling Results

Scientific Articles and Reports

International Scientific Activities

FDA experts participate in the international standard-setting body, Codex Alimentarius Commission (Codex). The purpose of Codex is to protect the health of consumers and promote fair trade practices by adopting scientifically based standards, guidelines, and codes of practice across all areas of food safety and quality. Its work includes reviewing the scientific data concerning contaminant levels in foods. These international discussions can lead to recommendations for standards individual countries may adopt and codes of practice, such as the Code of Practice for the Prevention and Reduction of Arsenic Contamination in Rice, to prevent or reduce the presence of contaminants in food.

Federal Regulations

There are no FDA regulations that authorize arsenic for use as a color additive or food additive. The FDA seeks to limit the amount of arsenic in foods when it is not otherwise possible to prevent arsenic entirely.

It is the legal responsibility of companies that grow or produce foods, or manufacture products intended for use with foods sold in the U.S., to comply with the Federal Food, Drug, and Cosmetic Act and FDA’s regulations.

If the FDA determines that the level of arsenic causes the food to be unsafe, the agency will take regulatory action. This may include working with the manufacturer to resolve the issue, and as necessary, taking steps to prevent the product from entering, or remaining, in the U.S. market.

Bottled Water Regulation: The FDA limits the level of arsenic (as well as other contaminants) in bottled water by establishing allowable levels in the quality standard for bottled water. For arsenic, this level is set to 10 ppb, the same amount allowed by the U.S. Environmental Protection Agency for public drinking water.

Import Alerts and Enforcement

The FDA issues import alerts to prevent potentially violative products from being distributed in the United States. The agency has issued import alerts for certain foods from certain manufacturers that may pose a food safety hazard due to the presence of elevated levels of arsenic.

Guidance for Industry

The FDA issues guidance for industry to describe the agency’s current thinking on a regulatory issue. For example, guidance on action levels communicates to industry the level of contaminants in foods at which the FDA may take enforcement action. Unlike regulations, guidance is not legally binding for the FDA or industry.

Guidance for Industry and Support Documents by Date Issued

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