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Can Cat Food Reduce the Allergens From Cats?

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We currently have a cat. My daughter is allergic to it. I have heard that a specific cat food reduces the allergen in cats. Which food would be best to feed them? I regularly clean the home, but I want to make it safer for my daughter.

There is a cat chow that was developed to help reduce the amount of major cat allergen (Fel d 1) in the environment where a cat lives. This is most likely the thing you may have heard about.

Pro Plan LiveClear is a cat food made by Purina. It reduces the major allergen after a cat eats it for several weeks. Chickens are immunized with the major cat allergen (Fel d 1). This makes them produce specific antibodies. These antibodies are then collected from the egg yolks of these chickens. They are then used to supplement the cat chow. When the cat eats this food the amount of the major allergen in the cat’s saliva and hair is reduced by these antibodies. This lowers the amount of cat allergen in the environment. The effectiveness of this technology has been confirmed in small studies.

Other general measures to reduce the amount of cat allergen in the home include:

  • Making the bedroom a pet-free space
  • Using a HEPA filter (high-efficiency particulate air filter) in the home to filter out allergens in the air including cat dander
  • Vacuuming regularly (at least twice a week) with a CERTIFIED asthma & allergy friendly® vacuum cleaner

Learn about more measures to reduce your exposure to cat allergens.

Allergy, CERTIFIED asthma & allergy friendly®, Pet Allergy
Answered by

John M. James, MD, is a board-certified allergist. He is also President of Food Allergy Consulting and Education Services, LLC. He has worked as a medical specialist in the field of allergy, asthma, and immunology for over 30 years. Dr. James received his bachelor’s degree from the University of Arkansas and his Doctor of Medicine degree from the University of Tennessee. He is board certified by the American Board of Allergy and Immunology.

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I've been using this since it was first available.  It has helped my cat allergies.  Also, my allergist decades ago said I had to bathe my cat weekly to get the dander off her & that would help my allergies.  I did it for her and for both cats since.  It works for me.


My allergies got better after feeding my older cat the Senior formula of the Purina Pro Plan LiveClear formula, however I noticed significant health changes in my cat after several months of using this formula. She started to have a dull coat and was loosing her hair, so I had to switch off of it.

I had to be extra vigilant in my home routine to keep my allergies and dermatitis from flaring up. I now take a damp cloth and go over the cat's coat weekly and get the under coat as much as possible. I also use a deshedding tool often on her coat while in a KN95 mask, invested in a HEPA vacuum, and wash my hands and face after grooming or petting my cat.

Nurse LH
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