April 24, 2026 - A. calamus and products derived ... were banned from use as human food or as a food additive in 1968 by the United States Food and Drug Administration. Although limits on consumption in food or alcoholic beverages (115 micrograms per day) were recommended in a 2001 ruling by the European Commission, the degree of safe exposure remained undefined. Although calamus has been used for its fragrance and ingested, it has not been studied by rigorous clinical research. Individual medical reports of toxicity mention severe nausea and prolonged vomiting over many hours following oral uses...

In the United States, calamus is included in “Substances Generally Prohibited From Direct Addition or Use as Human Food [link] by the FDA.” · (a) Calamus is the dried rhizome of Acorus calamus L. It has been used as a flavoring compound, especially as the oil or extract.

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People use calamus for asthma, ... these uses. Using calamus can also be unsafe. The US FDA banned calamus in 1968 due to some species containing the cancer-causing chemical beta-asarone....

April 16, 2025 - The U.S. Food and Drug Administration (FDA) prohibited the use of Oil of Calamus as a food additive in 1968 due to studies indicating its potential to cause liver tumors in mice.1 Furthermore, the European Commission has expressed concerns about ...

They contain varying amounts of ... In the US, use of calamus and its products was banned in 1968 following demonstration of carcinogenic effects of long-term, high-dosage application in an animal model....

April 2, 2026 - The FDA determined that calamus and its derivatives do not meet the criteria for GRAS (Generally Recognized as Safe) status. The additive has been banned from food use since the 1960s-1970s in most Western countries.

Sweet flag contains β-asarone, ... of acorus gramineus. Regulatory authorities in some regions, such as the U.S. Food and Drug Administration (FDA), have imposed restrictions on the internal use of sweet flag due to the presence of β-asarone....

April 8, 2026 - It grows in wetland habitats, including ... swamps. Acorus calamus and products made from it, such as its oil, were banned for use as human food or food additives in 1968 by the United States Food and Drug Administration....

(b) Food containing any added calamus, oil of calamus, or extract of calamus is deemed to be adulterated in violation of the act based upon an order published in the Federal Register of May 9, 1968 (33 FR 6967).

Calamus and products derived from calamus (such as its oil) were banned in 1968 as food additives and medicines by the United States Food and Drug Administration.

November 23, 2025 - In 1968 the Food and Drug Administration banned Acorus calamus from being used as a food additive and as a medicinal as a result of lab studies that involved supplementing the diets of lab animals over a prolonged period of time with massive ...

Habitats include edges of small lakes, ponds and rivers, marshes, swamps, and other wetlands. A. calamus and products derived from A. calamus (such as its oil) were banned from use as human food or as a food additive in 1968 by the United States Food and Drug Administration.

January 27, 2026 - This isn't because calamus is inherently poisonous in small quantities, but rather due to concerns about a compound called beta-asarone found in the root. Studies, primarily in animals, have suggested that beta-asarone can be carcinogenic, leading ...

May 23, 2024 - However, due to the presence of ... United States, the Food and Drug Administration (FDA) prohibits the use of Calamus root as a food additive due to the potential health risks associated with beta-asarone....

But an active ingredient of this plant β-asarone has been termed as a potent pesticide and therefore this plant is considered toxic for human consumption. It has also been banned in different countries such as USA [41]. ... Acorus calamus Linn (Family: Acoraceae), commonly known “sweet flag” ...

3 weeks ago - Kumari R, Agrawal SB, Singh S, Dubey NK. Supplemental ultraviolet-B induced changes in essential oil composition and total phenolics of Acorus calamus L. (sweet flag). Ecotoxicol Environ Saf.

In high doses, it is hallucinogenic. European varieties have a low concentration of aserone compared to those from India. The FDA has issued warnings about the marketing of Aserone contained in Calamus extract as a "Legal Ecstasy", and does not permit the use of calamus in food products.

June 11, 2021 - It can cause kidney damage, shaking, and seizures. The FDA prohibits calamus use in food products because three of the four species of calamus found in the world contain a cancer–causing chemical called beta-isoasarone.

March 29, 2018 - The finding that taking Acorus calamus in large quantities may contribute to giving you cancer is what caused the US Food and Drug Administration (FDA) to ban it [4], but the plant's hallucinogenic properties are no less interesting.