
The US Food and Drug Administration (FDA) has strict requirements for the advertisement and labelling of food and dietary supplements, including adaptogenic mushrooms. The FDA's Generally Recognized as Safe (GRAS) status is a key component of these regulations. The FDA has determined that certain mushroom products, such as Chiber™ Mushroom Fiber, meet the GRAS standard, while others, such as Amanita muscaria, do not and are considered unapproved food additives. The distinction between food and food additives is significant, as it affects how the FDA regulates the substance's sale.
| Characteristics | Values |
|---|---|
| FDA-notified GRAS status mushrooms | BeyondMushrooms |
| FDA-notified GRAS status mushroom extracts | BeyondMushrooms |
| FDA-notified GRAS status mushroom preservative | Chiber |
| FDA-approved mushroom sales | Compass |
| FDA-approved mushroom type | Non-psychoactive |
| FDA-approved mushroom use | Dietary supplements, food, ingredient in conventional foods |
| FDA-approved mushroom types | Chaga, reishi, shiitake, lion's mane, cordyceps, turkey tail |
| FDA-not approved mushroom type | Amanita muscaria |
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What You'll Learn

FDA's distinction between food and food additives
The Federal Food, Drug, and Cosmetic Act (FD&C Act) draws a distinction between "food" and "food additives". This distinction has significant implications for the FDA's ability to regulate the sale of adaptogenic mushrooms.
Substances regulated as "food" are presumed safe, and the FDA can only prevent their sale if it can provide sufficient evidence that they are harmful to health. Conversely, “food additives” are presumed unsafe unless the manufacturer demonstrates that they are generally recognized as safe (GRAS) for their intended use. In other words, if a substance is intended to be added to conventional foods, it must be either GRAS or approved by the FDA as a "food additive", both of which require “reasonable certainty” of safety.
The FDA evaluates petitions and other data to determine if a food additive is safe under the proposed conditions of use. The safety of food additives must be supported by scientific evidence that meets the FDA's safety standards. This includes considering how the body metabolizes the food ingredient and reviewing relevant scientific studies on its safety. The FDA also determines the Acceptable Daily Intake for a substance, which is the amount considered safe to consume daily over a person's lifetime, taking into account potential uncertainties and vulnerable populations.
Direct food additives are those added to food for a specific purpose, such as improving taste, texture, nutritional value, or freshness. Most direct additives are identified on the ingredient label of foods. To market a new direct food additive, manufacturers must first seek approval from the FDA by submitting a food additive petition. This petition must provide evidence that the substance is safe for its intended use, including the types of food and levels of use.
It is important to note that food and food additives are regulated differently. For example, there are strict restrictions on the advertisement and labeling of food and dietary supplements, including adaptogenic mushrooms. Violations of these restrictions can trigger enforcement actions. Additionally, distributors who work with contract manufacturers are obligated to understand the manufacturing process to ensure correct labeling and distribution decisions.
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FDA's GRAS Notification process
The U.S. Food and Drug Administration (FDA) regulates approximately 80% of the U.S. food supply and is involved in many aspects of food safety. The FDA's Center for Food Safety and Applied Nutrition's (CFSAN) Office of Food Additive Safety is responsible for reviewing the safety information for food ingredients and food packaging.
The GRAS acronym stands for "Generally Recognized As Safe." A substance that will be added to food is subject to premarket approval by the FDA unless it is generally recognized, among qualified experts, to be safe under the conditions of its intended use. The GRAS determination is always limited to the substance's intended conditions of use. For a substance to be GRAS, the scientific data and information about its use must be widely known, and there must be a consensus among qualified experts that the data establishes that the substance is safe under the intended conditions of use.
The FDA encourages individuals to review its GRAS notification submission procedures before sending a notification to the Agency. Notifications should be sent to the FDA's Office of Food Additive Safety and include a 'GRAS exemption claim' providing a description of the substance, the applicable conditions of use, and the basis for the GRAS determination. The notice should also include information about the identity and properties of the substance and a discussion of the notifier's reasons for concluding that the substance is GRAS for its intended use.
The GRAS notification procedure allows companies to voluntarily notify the FDA of their GRAS determination, where the FDA evaluates the claim but does not formally approve or deny it. The FDA will then issue a response letter, which will be added to the GRAS Notices Inventory database on the official FDA website. The FDA's response generally falls into one of three categories:
- The agency does not question the basis for the notifier's GRAS conclusion.
- The agency concludes that the notice does not provide a sufficient basis for a GRAS conclusion (e.g., due to insufficient data or safety concerns).
- The response letter states that the agency has, at the notifier's request, ceased to evaluate the GRAS notice.
It is important to note that the GRAS exclusion was introduced through the 1958 Food Additives Amendment to the Federal Food, Drug, and Cosmetic Act. Some ingredients used in food before 1958 are grandfathered into a GRAS designation, while others may have undergone GRAS safety studies that have not been submitted to the FDA. Obtaining a GRAS certification is a complex process that generally takes 6-18 months.
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FDA's regulatory compliance and consumer confidence
The FDA's regulatory compliance and consumer confidence are essential aspects of the agency's mission to protect public health and safety. The FDA achieves this through various means, including regulatory oversight, transparency, and coordination with stakeholders.
One of the critical aspects of regulatory compliance is the distinction between "food" and "food additives" under the FD&C Act. This distinction significantly impacts the regulation of adaptogenic mushrooms. "Food" is presumed safe, and the FDA can only prevent its sale if it proves that the product is injurious to health. On the other hand, a "food additive" is presumed unsafe unless the manufacturer demonstrates that it is generally recognized as safe (GRAS) for its intended use. This distinction influences how adaptogenic mushrooms are regulated and sold.
To maintain regulatory compliance, companies selling adaptogenic mushrooms must adhere to strict restrictions on advertising and labeling. The FDA and FTC jointly regulate the labeling and advertising of dietary supplements, respectively. Violations in these areas can trigger enforcement actions. For example, claiming that a mushroom supplement can prevent, treat, or cure diseases may lead the FDA to classify it as an unapproved drug. Additionally, distributors who work with contract manufacturers are obligated to understand the manufacturing process to ensure proper labeling and distribution decisions.
Consumer confidence is closely tied to regulatory compliance. The FDA's proposed front-of-package nutrition labeling rule aims to empower consumers and enhance transparency in food labeling. By providing uniform labeling standards and prioritizing key nutritional data points, consumers will have better information to make informed choices. This transparency increases consumer confidence and can boost brand loyalty. It also showcases a company's commitment to public health and positions it as a leader in the industry.
By adhering to the FDA's regulatory requirements, companies can avoid fines, recalls, and other penalties while building trust with their consumers. The FDA's commitment to transparency and coordination with stakeholders helps enhance public confidence in the regulatory system. As the landscape of biotechnology products evolves, the FDA works to protect public health and avoid unnecessary barriers to innovation.
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FDA's safety standard for food ingredients
The US Food and Drug Administration (FDA) has established a set of comprehensive standards and regulations to ensure the safety of food ingredients for consumers. These standards are outlined in the FDA Food Code, which serves as a model for best practices in the safe handling and distribution of food in retail settings. The FDA Food Code provides a technical and legal basis for regulating the food industry, particularly in the retail and food service sectors, including restaurants, grocery stores, and institutions such as nursing homes.
One of the key principles of the FDA's safety standards is the distinction between "food" and "food additives." According to the FD&C Act, a substance regulated as ""food" is presumed safe, and the FDA can only prevent its sale if they provide sufficient evidence that it is harmful to health. On the other hand, a "food additive" is presumed unsafe unless the manufacturer demonstrates that it is generally recognized as safe (GRAS) for its intended use. This means that if a substance is intended to be added to conventional foods, it must meet the GRAS standard or be approved by the FDA as a "food additive," both of which require a reasonable certainty of safety.
The FDA maintains a comprehensive list of substances in its public database, "Substances Added to Food," which includes ingredients that are no longer authorized for use in food. This database assists food manufacturers in ensuring that their products meet the required safety standards. Additionally, the FDA provides pre-market consultation for manufacturers who use innovative food technologies, helping them navigate the regulatory landscape and ensure the safety of their products.
The FDA also places strict restrictions on the advertisement and labeling of food products, including dietary supplements. Manufacturers of dietary supplements must adhere to current good manufacturing practices published by the FDA. In the case of adaptogenic mushrooms, marketers must be cautious about the claims they make regarding disease prevention or treatment, as this can render the supplement an unapproved drug. The Dietary Supplement and Nonprescription Drug Consumer Protection Act of 2006 also established reporting and record-keeping requirements for adverse events related to supplements, ensuring that any safety concerns are promptly addressed.
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FDA's Amanita muscaria determination
On December 18, 2024, the U.S. Food and Drug Administration (FDA) issued a letter to food manufacturers stating that Amanita muscaria (A. muscaria), its extracts, and certain constituents (muscimol, ibotenic acid, and muscarine) are not authorized for use as ingredients in conventional food. The FDA's letter also stated that any conventional food containing A. muscaria or its related compounds is considered adulterated under the Federal Food, Drug, and Cosmetic Act and may be subject to enforcement actions.
The FDA's determination was based on a review of the available information about A. muscaria and its constituents, including adverse event reports, news reports, and inquiries from state and local regulators. The FDA concluded that A. muscaria and its constituents do not meet the safety standard for use in food and that their use as food ingredients may be harmful. The FDA's "Bad Bug" book, released in 2012, identifies A. muscaria and its constituents as toxic agents that can cause poisoning, gastrointestinal symptoms, delirium, and sleepiness with a rapid onset. Large exposures, such as when introduced into food as an extract or isolated constituents, can lead to severe neurological symptoms, such as convulsions and coma.
The FDA's letter also addressed manufacturers who are currently using or considering using A. muscaria in their products. The FDA encouraged manufacturers to use the GRAS Notification Program for any new ingredients and to consult the FDA's guidance to ensure they meet safety standards. The FDA also suggested exploring alternative ingredients that are GRAS-approved, such as reishi, lion's mane, or chaga mushrooms, which have well-documented safety profiles.
The FDA's determination on A. muscaria is part of a broader assessment of these ingredients in the food supply. The FDA is also evaluating the use of A. muscaria and its constituents in dietary supplements. Manufacturers exploring the use of these ingredients in dietary supplements are reminded of their responsibility to ensure their ingredients meet the relevant safety standards and are encouraged to engage with the Office of Dietary Supplement Programs.
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Frequently asked questions
GRAS stands for Generally Recognized As Safe.
The FDA's GRAS Notification process is a way for companies to get confirmation from the FDA that their product is safe and acknowledged at the highest level.
BeyondMushrooms is a line of mushroom extract ingredients that have received FDA-notified GRAS status. Chiber™ Mushroom Fiber, a natural food and beverage preservative derived from white button mushrooms, is another example.
Amanita muscaria, its extracts, and certain constituents (muscimol, ibotenic acid, and muscarine) do not meet the GRAS standard and are considered unapproved food additives by the FDA.
Violations of FDA restrictions on the advertising and labeling of mushroom products can trigger enforcement actions. The FDA may send a letter to the company pointing out the violation, and the company may be required to submit reports and keep records of adverse events related to their product.

























