Current status: Closed

This consultation ran from September 18, 2025, to October 17, 2025

About the consultation

We were seeking comments on the following amended single ingredient feed (SIF) descriptions:

• chromium yeast dehydrated (chromium enriched yeast)
• seleno yeast dehydrated (selenium enriched yeast)

In addition, we were seeking comments on the following reclassified and amended SIF descriptions:

• yeast irradiated dehydrated
• yeast brewers dehydrated
• yeast brewers liquid
• yeast torula dehydrated

Background

The Feeds Regulations, 2024 require a proponent to submit a pre-market application for new feed ingredients or SIFs that have been modified such that they differ from an approved SIF or SIFs that are for a new purpose. We evaluate the information in the application to establish that the SIF is safe, effective and labelled correctly.

Approved SIFs are listed and described in the Canadian Feed Ingredients Table (CFIT), which is incorporated by reference (IBR) into the Feeds Regulations, 2024. Our Incorporation by Reference Policy requires that a consultation be conducted before changes to IBR documents are made. Refer to Documents incorporated by reference under the Feeds Regulations, 2024 for additional information.

About the evaluation

SIFs listed and described in the CFIT are classified by purpose (the classes and subclasses in the CFIT refer to the purpose of the SIF). As we have transitioned from Schedules IV and V of the Feeds Regulations, 1983 to the CFIT of the Feeds Regulations, 2024, SIFs that were not classified with a clearly defined purpose or purposes were identified for review. This review process includes verifying SIF descriptions as well as reclassifying the SIFs according to their approved purposes in the CFIT. The reclassification process may involve reorganizing SIFs to different subclasses to accurately reflect their respective intended purpose(s), if appropriate. For SIFs identified as needing revision, a SIF description may be modified or a new description may be proposed.

Our Animal Feed Program (AFP) has started to review some of the yeast-based SIF descriptions found in the CFIT, in particular 2 yeast-based SIFs found in subclass 5.3 (Minerals) and certain ones found in subclass 6.21 (Fermentation products non viable) as part of the CFIT yeast description review and update project.

As a result of our initial review, we have identified that the current descriptions for chromium yeast dehydrated (chromium enriched yeast) and seleno yeast dehydrated (selenium enriched yeast) need to be amended. These modifications include modifying the approved SIF names, adding some of the standardized wording found in the new and revised descriptions for SIFs manufactured using fermentation (such as the viable microorganisms and yeasts) to these descriptions and specifying the species of the yeast. For seleno yeast dehydrated (selenium enriched yeast), modifications also include removing the requirement to list the media on the label and modifying the required label guarantees.

Therefore, we recommend that the descriptions for chromium yeast dehydrated (chromium enriched yeast) and seleno yeast dehydrated (selenium enriched yeast) be amended and the amended SIF descriptions replace the current SIF descriptions in the CFIT accordingly.

We have also identified that yeast irradiated dehydrated has been classified incorrectly in the CFIT. Currently, this SIF is classified and listed in subclass 6.21 (Fermentation products non viable) of class 6 (Non-nutritive ingredients) of part 1 of the CFIT. However, this SIF was assessed and approved as source of vitamin D₂.

In addition to recommending that this SIF be reclassified in the CFIT based on its approved purpose, the description should be amended to add an alternative name that is commonly used (irradiated dried yeast), specify the species of the yeast, clarify the original approved purpose (source of vitamin D₂) and revise the required label guarantees to reflect the approved purpose of this SIF by adding a label guarantee for vitamin D₂ and removing the required label guarantees for crude protein and crude fibre.

Therefore, we recommend yeast irradiated dehydrated be moved from subclass 6.21 (Fermentation products non viable) in part 1 of the CFIT to subclass 5.4.1 (Vitamins from fermentation processes) of class 5 (Nutritional ingredients) in part 1 of the CFIT and the amended SIF description replace the current SIF description in the CFIT, accordingly.

We have identified that yeast brewers dehydrated and yeast brewers liquid have been classified incorrectly in the CFIT. Currently, these SIFs are classified and listed in subclass 6.21 (Fermentation products non viable) in class 6 (Non-nutritive ingredients) of part 1 of the CFIT. However, these SIFs were assessed and approved as a source of protein.

In addition to recommending that these SIFs be reclassified in the CFIT based on its original approved purpose, the descriptions should be amended to better describe that the yeast biomass is from brewing alcohol, specify the 2 species of Saccharomyces yeasts that are most commonly used in brewing beer and ale, include a specification for crude protein (only for the yeast brewers dehydrated description, to align with the specification for the yeast brewers liquid description) and revise the required label guarantees to reflect the approved purpose (source of protein) by removing the required label guarantee for crude fibre.

Therefore, we recommend yeast brewers dehydrated and yeast brewers liquid be moved from subclass 6.21 (Fermentation products non viable) in part 1 of the CFIT to subclass 3.3 (Brewers' and distillers' by-products) of class 3 (Protein feeds) in part 1 of the CFIT and the amended SIF descriptions replace the current SIF descriptions in the CFIT, accordingly.

Finally, we have identified that yeast torula dehydrated has been classified incorrectly in the CFIT. Currently, this SIF is classified and listed in subclass 6.21 (Fermentation products non viable) in class 6 (Non-nutritive ingredients) of part 1 of the CFIT. However, this SIF was assessed and approved as a source of protein.

In addition to recommending that this SIF be reclassified in the CFIT based on its original approved purpose, this description should be amended to include the correct taxonomic name of the yeast (replace Torulopsis with Cyberlindnera jadinii) and include some of the standardized wording used in the new and revised descriptions for yeasts.

Therefore, we recommend yeast torula dehydrated be moved from subclass 6.21 (Fermentation products non viable) in part 1 of the CFIT to subclass 3.4 (Biomass from fermentation processes) of class 3 (Protein feeds) in part 1 of the CFIT and the amended SIF description replace the current SIF description in the CFIT, accordingly.

Reclassified and amended SIF descriptions

We intend to amend the existing SIF description for chromium yeast dehydrated (chromium enriched yeast) (2-503-040) under subclass 5.3 (Minerals) of class 5 (Nutritional ingredients) in part 2 of the CFIT. The description is to be amended to change the only approved name of this SIF to chromium enriched yeast (remove chromium yeast dehydrated as an approved name, with no alternative names), remove the carrier statement, specify the species of the yeast and add the standardized wording found in other new and revised descriptions for SIFs manufactured using fermentation (such as the viable microorganisms and yeasts).

The amended description is:

We also intend to amend the existing SIF description for seleno yeast dehydrated (selenium enriched yeast) (2-503-001) under subclass 5.3 (Minerals) of class 5 (Nutritional ingredients) in part 2 of the CFIT. The description is to be amended to change the only approved name of this SIF to selenium enriched yeast (remove seleno yeast dehydrated as an approved name, with no alternative names), include a specification for the maximum percent of inorganic selenium allowed, specify the species of the yeast, remove the requirement of stating the media on the label, add a required label guarantee for minimum percent of organic selenium of the total selenium and add the standardized wording found in other new and revised descriptions for SIFs manufactured using fermentation (such as the viable microorganisms and yeasts).

The amended description is:

We also intend to reclassify and amend the existing SIF description for yeast irradiated dehydrated. We intend to reclassify yeast irradiated dehydrated and move this SIF from subclass 6.21 (Fermentation products non viable) of class 6 (Non-nutritive ingredients) of part 1 of the CFIT to subclass 5.4.1 (Vitamins from fermentation processes) of class 5 (Nutritional ingredients) of part 1 of the CFIT.

In addition, we intend to amend the existing description by adding an alternative name that is commonly used (irradiated dried yeast), specifying the species of the yeast, clarifying the original approved purpose (source of vitamin D₂) and revising the required label guarantees to reflect the approved purpose of this SIF by adding a label guarantee for vitamin D₂ and removing the required label guarantees for crude protein and crude fibre.

The amended description is:

The ingredient number will be amended to reflect that the SIF has been moved from subclass 6.21 to subclass 5.4.1 in part 1 of the CFIT. This is a reclassification and amendment to an existing SIF description.

We also intend to reclassify and amend the existing SIF descriptions for yeast brewers dehydrated and yeast brewers liquid. We intend to reclassify yeast brewers dehydrated and yeast brewers liquid and move these SIFs from subclass 6.21 (Fermentation products non viable) of class 6 (Non-nutritive ingredients) of part 1 of the CFIT to subclass 3.3 (Brewers' and distillers' by-products) of class 3 (Protein feeds) of part 1 of the CFIT.

The amendments to these descriptions include better describing that the yeast biomass is from brewing alcohol, specifying the 2 species of Saccharomyces yeasts that are most commonly used in brewing beer and ale, include a specification for crude protein (only for the yeast brewers dehydrated description) and revise the required label guarantees to reflect the approved purpose (source of protein) by removing the required label guarantee for crude fibre.

The amended descriptions are:

The ingredient numbers will be amended to reflect that these SIFs have been moved from subclass 6.21 to subclass 3.3 in part 1 of the CFIT. This is a reclassification and amendment of 2 existing SIF descriptions.

Finally, we intend to reclassify and amend the existing SIF description for yeast torula dehydrated. We intend to reclassify yeast torula dehydrated and move this SIF from subclass 6.21 (Fermentation products non viable) of class 6 (Non-nutritive ingredients) of part 1 of the CFIT to subclass 3.4 (Biomass from fermentation processes) of class 3 (Protein feeds) of part 1 of the CFIT.

This description is to be amended to include the correct taxonomic name of the yeast (replace Torulopsis with Cyberlindnera jadinii) and include some of the standardized wording used in the new and revised descriptions for yeasts.

The amended description is:

The ingredient number will be amended to reflect that the SIF has been moved from subclass 6.21 to subclass 3.4 in part 1 of the CFIT. This is a reclassification and amendment to an existing SIF description.

Additional information

These reclassified and amended yeast-based SIF descriptions are the result of our initial findings of the project to update yeast-based descriptions found in the CFIT, including yeast-based descriptions found in subclass 5.3 and subclass 6.21. We have identified yeast-based SIF descriptions that need to be amended or that need to be reclassified (based on their intended purpose) and amended. As we continue to work on updating how these yeast-based ingredients are named and described in the CFIT, ensuring accuracy of the descriptions is important as well as clarifying the intended approved purpose(s) of these yeast-based SIFs.

If a yeast-based SIF description and classification within the CFIT are found not to align with the known purpose of the SIF during this CFIT review project, the SIF description will be amended and reclassified. In order for an ingredient to be considered approved, the ingredient must meet all aspects of the SIF description, including purpose. For example, as yeast brewers liquid has the purpose of being a protein feed, it is being reclassified from subclass 6.21 (Fermentation products non viable) of class 6 (Non-nutritive ingredients) to subclass 3.3 (Brewers' and distillers' by-products) of class 3 (Protein feeds). Protein feeds are approved as a significant source of protein in the total diet and the directions for use, as well as their inclusion rate in formulations, should reflect the approved purpose. Note, yeast brewers liquid had historically been intended to be approved as a protein source and the proposed reclassification to subclass 3.3 (Brewers' and distillers' by-products) reflects this approved purpose. Any SIF description that is being amended or reclassified as part of this CFIT review project will undergo public consultation prior to any changes being made in the CFIT.

If a proponent wishes to have a SIF approved for a new purpose, a pre-market application for approval must be submitted with supporting data to demonstrate that the SIF is safe and effective for the new purpose. If the outcome of the pre-market evaluation is positive, a new description for the ingredient with that purpose will be prepared and will undergo consultation prior to being added to the CFIT.

Who was the focus of this consultation

Animal feed stakeholders, including:

• suppliers of feed ingredients
• commercial feed manufacturers
• feed importers, distributors and retailers
• industry associations
• other government departments
• international trading partners
• veterinarians

All comments were welcomed from industry, governments, the public or other organizations or individuals.

Next steps

We will review all of the comments received. If no significant scientifically valid concerns are raised, we will finalize the amended descriptions for:

• chromium enriched yeast
• selenium enriched yeast

In addition, if no significant scientifically valid concerns are raised, we will finalize the reclassification and amended descriptions for:

• yeast irradiated dehydrated
• yeast brewers dehydrated
• yeast brewers liquid
• yeast torula dehydrated

If significant concerns are raised, we will evaluate the additional information. A what we heard report that summarizes the feedback received will be prepared.

The amended descriptions for chromium enriched yeast and selenium enriched yeast will be added to the CFIT at the next update.

In addition, the reclassified and amended descriptions for yeast irradiated dehydrated, yeast brewers dehydrated, yeast brewers liquid and yeast torula dehydrated will be added to the CFIT at the next update.

Related information

• Feeds Act
• Consultations on proposed regulatory and policy changes

Contact us

Animal Feed Program (AFP)
Canadian Food Inspection Agency
Email: cfia.afp-paa.acia@inspection.gc.ca