
Precision Diets for Specialized Research Needs
TestDiet® products were first created in the 1970s to aid researchers who needed modifications to their standard LabDiet® formulas. Since then, TestDiet® has expanded substantially to keep up with industry demands. TestDiet® can manufacture small amounts of modified LabDiet® products, high-fat DIO formulas, tablets, and a wide range of other custom formulas to meet your needs.

Custom Diets Produced in Certified Facilities
TestDiet® operates two of the industry’s most advanced GMP-compliant and
SQF-certified production facilities, specializing in precision-formulated laboratory animal diets.
Custom TestDiet® products can be created for nearly any research species, including rodents, rabbits, ferrets, dogs, cats, primates, swine, poultry, reptiles, fish, aquatic mammals, zoo animals, exotic birds, and more.
Ready to order TestDiet® or have a question? Get in touch!
We will ensure you have the right feed for your animals’ nutritional needs.
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W.F. Fisher and Son
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