Formulation Updates



As the industry leader in laboratory animal nutrition, LabDiet^® fully understands the importance of diet and the role diet can play in providing precise and repeatable results for your research.   We too are a research company.  As we continually expand our knowledge about the ingredients and compositions of our diets, we are pleased to pass that knowledge on to you when we believe it is appropriate.  Such changes are incorporated without changing the ingredient hierarchy of our trusted standard LabDiet^® products.

As technology and information about the nutrient requirements of laboratory animals develop, LabDiet^® believes it is our job to ensure our diets move forward with those advances.  For example, an important innovation in the 1950s was the esterification of vitamins E and A to improve stability.  Prior to that, increased amounts were added to diets to ensure the animals’ minimum requirements were met.  Further improvements in the 1990s have been made through the use of phosphorylation for vitamin C or cross-linked beadlet formulation for vitamins A and E.  With the evolution of both technology and science, more controlled and tighter bounds may be applied to the nutrient specifications of our diets while simultaneously increasing stability and maintaining bioavailability.

We fully understand a major change to a diet would be a concern to you, which is why we introduce new diets often; any change to an existing diet is minor.  Our objective is to provide diets that maintain good animal health and contain recommended nutrient levels that are not deficient or excessive, which could be detrimental.  Hence, occasional and minor updates to our formulas are required.  Each spec sheet located at www.labdiet.com is dated to indicate the most recent updates.  If needed, we can always provide you with the previously published specifications or you can contact us directly to inquire about the exact changes made.  LabDiet^® offers a team of experienced nutritionists who are readily available to answer any questions you may have about your diet.  

Please feel free to contact us at info@labdiet.com with your questions and comments.

If someone other than a Purina LabDiet^® employee attempts to provide details about this and/or other formulation practices, please understand that the information may not be accurate. 

We appreciate your business and confidence in our fine products.

Purina LabDiet^®

Vitamin C Advancements

Vitamin A & B12 Improvements