My dog has allergies. What hypoallergenic diet does a vet recommend?

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! There are 2 categories of what we call "Hypoallergenic" diets: 1) Novel Protein: the food is made of a protein we assume your pet has never been exposed to before. Something like duck, fish, venison, rabbit, lamb, bison, beef. The most common allergic protein is chicken not grains. So do not buy a chicken grain free diet and assume you are buying hypoallergenic, because you aren't. 2) Prescription hydrolyzed diets: These can only be bought from a Vet or with a prescription. These diets take the protein and chemically hydrolyze it to a very small size, so small that it isn't recognized by the immune system as an allergenic. I hope this helps and have a great day!

I would try hills z/d ultra or royal canin anallergenic (an even more restricted version). Ensure also she is not receiving any additional treats, flavored tablets, bones, table scraps or raiding any garbage bins. She may also require prescription medication to resolve the current flare up. A home prepared diet may be an option but would have to be formulated with the help of an expert nutritionalist and can only comprise of novel ingredients (foods she has never eaten before such as kangaroo/venison/sweet potato etc - these are very difficult to supplement sufficiently and are very expensive to maintain in the long term)

For an ideal diet trial for a suspected food allergy, it is typically recommended to feed a hydrolyzed protein diet (proteins are broken down to the point where they can't trigger the immune system) exclusively for 6-8 weeks. After that point, some dogs are rechallenged with their original diet to see if signs recur or started on a novel protein diet (one protein source/one carbohydrate source). If signs of a food allergy are still present, some dogs need to remain on the hydrolyzed diet indefinitely. The hydrolyzed diets are prescription based and include Royal Canin Ultimano, Royal Canin HP, Science Diet Z/D ultra, and Purina HA. There are many pet food companies online that can also dispense these diets with a prescription from your vet (chewy.com is one example). If the cost of a hydrolyzed diet is still not feasible for a diet trial, talk to your vet about starting Rico on a novel protein diet. Many of these are still prescription based, but I have also been impressed by the Dick van Patten Natural Balance limited ingredient line, which is available over the counter. With any diet trial, it can take 2-3 months to determine if it is effective and you need to be strict in that Rico would only receive his dog food with no other treats or table foods. I hope this helps! :-)

The best type of food for a dog with food allergies would be a prescription hypoallergenic diet such as Purina HA or Hills z/d - these are diets that are specially formulated to avoid any proteins that can cause an allergic response, and can be ordered online with a prescription from your veterinarian. If you need an over-the-counter option, some dogs with food allergies do well on Natural Balance limited ingredient diets - these don't work as consistently as prescription diets do, but are often less expensive so can be a reasonable alternative option if needed due to cost.

Thank you for submitting your question regarding Sage. Most over-the-counter foods are contaminated with ingredients not listed on the label. For example, if the diet lists the main ingredient as salmon, there could be small amounts of chicken in the food. This makes it very difficult if a patient has a food allergy. Prescription veterinary diets such as a hydrolyzed or a limited ingredient diet will be most successful for a food allergy. They are more expensive, but in the long run typically end up saving you money. If she is not constantly seeing her veterinarian for exams and medications due to skin disease, this will save you money. Hydrolyzed diets have the protein source chopped into such small pieces that the body's immune system does not recognize and react to it. Examples are Royal Canin Veterinary Diets Ultamino, Purina ProPlan Veterinary Diets HA or Hills ZD. The same companies make limited ingredient diets with one protein and one carbohydrate source. It can be some trial and error to find the best food. I hope this information helps!

Without a full diet history it is impossible to prescribe a diet. Hills z/d is a hydrolyzed formula where all the proteins have been broken down (akin to being pre-digested) into small pieces so the immune system should not react to them and so should resolve the food intolerance symptoms, it is easily digested and highly absorbable by even the most sensitive bowel. A similar, hydrolyzed option is royal canin hypoallergenic or anallergenic and many pets find these extremely palatable. Some cases can do well on a 'novel protein diet' of home prepared food based on a protein source which she has never eaten before. This should be formulated only by a specialist nutritionist - tufts university clinical nutrition team are available by phone or appointment to help with this but it can be extremely expensive and time consuming to feed such a specific and strict diet and commercial brands are often more successful in resolving symptoms in the long term

A hydrolyzed therapeutic diet might be the best option for a dog with food allergies and potential heart disease. Hills makes a version called z/d, Royal Canin makes HP and Purina makes HA. Your vet would know more details however and might make a different recommendation based on Champ’s history so you should contact them before changing the diet.