hydrolyzed protein examples

Hydrolyzed vegetable protein

Foodstuffs obtained by protein hydrolysis

Hydrolyzed vegetable protein (HVP) products are foodstuffs obtained by protein hydrolysis and are used as ingredients to create a bouillon (broth) taste without the vegetables, bones, simmering, or other standard elements of creating bouillon from scratch.

Regarding the production process, a distinction can be made between acid-hydrolyzed vegetable protein (aHVP), enzymatically produced HVP, and other seasonings, e.g., fermented soy sauce. Hydrolyzed vegetable protein products are particularly used to round off the taste of soups, sauces, meat products, snacks, and other dishes, as well as for the production of ready-to-cook soups and bouillons.

History[edit]

Food technologists have long known that protein hydrolysis produces a meat bouillon-like odor and taste.^[1] In 1831, Berzelius obtained products having a meat bouillon taste when hydrolysing proteins with hydrochloric acid.^[2] Julius Maggi produced acid-catalyzed hydrolyzed vegetable protein industrially for the first time in 1886.^[3]

In 1906, Fischer found that amino acids contributed to the specific taste.^[4] In 1954, D. Phillips found that the bouillon odor required the presence of proteins containing threonine.^[5] Another important substance giving a characteristic taste is glutamic acid.

Manufacture[edit]

Almost all products rich in protein are suitable for the production of HVP. Today, it is made mainly from protein resources of vegetable origin, such as defatted oil seeds (soybean meal, grapeseed meal) and protein from maize (Corn gluten meal), wheat (gluten), pea, and rice.^[6] The process and the feedstock determines the organoleptic properties of the end product. Proteins consist of chains of amino acids joined through amide bonds. When subjected to hydrolysis (hydrolyzed), the protein is broken down into its component amino acids.

In aHVP, hydrochloric acid is used for hydrolysis. The remaining acid is then neutralized by mixing with an alkali such as sodium hydroxide, which leaves behind table salt, which comprises up to 20% of the final product (acid-hydrolyzed vegetable protein, aHVP).

In enzymatic HVP (eHVP), proteases are used to break down the proteins. The amount of salt is greatly reduced.

Acid hydrolysis[edit]

For the production of aHVP, the proteins are hydrolyzed by cooking with a diluted (1520%) hydrochloric acid, at a temperature between 90 and 120C for up to 8 hours. After cooling, the hydrolysate is neutralized with either sodium carbonate or sodium hydroxide to a pH of 5 to 6. The hydrolysate is filtered to remove the insoluble carbohydrate fraction (humin) and then further refined.^[7]

The source of the raw material, concentration of the acid, the temperature of the reaction, the time of the reaction, and other factors can all affect the organoleptic properties of the final product. Activated carbon treatment can be employed to remove both flavor and color components, to the required specification. Following a final filtration, the aHVP may, depending upon the application, be fortified with additional flavoring components. Thereafter, the product can be stored as a liquid at 3040% dry matter, or alternatively it may be spray dried or vacuum dried and further used as a food ingredient.^[7]

Enzymatic hydrolysis[edit]

For the production process of enzymatic HVP, enzymes are used to break down the proteins. To break down the protein to amino acids, proteases are added to the mixture of defatted protein and water. Due to the sensitivity of enzymes to a specific pH, either an acid or a base is added to match the optimum pH. Depending on the activity of the enzymes, up to 24 hours are needed to break down the proteins. The mixture is heated to inactivate the enzymes and then filtered to remove the insoluble carbohydrates (humin).

Since no salt is formed during the production process, manufacturers may add salt to eHVP preparations to extend shelf life or to provide a product similar to conventional aHVP.

Composition[edit]

Liquid aHVP typically contains 55% water, 16% salt, 25% organic substances (thereof 20% protein (amino acids) analyzed as about 3% total nitrogen and 2% amino nitrogen).

The organoleptic properties of HVP is determined not only by amino acid composition, but also by the various aroma-bearing substances other than amino acids created during the production of both aHVP and eHVP. Aromas can be formed via amino acid decomposition, Maillard reaction, sugar cyclization, and lipid oxidation.^[8] A complex mix of aromas similar to butter, meat,^[9][8] bone stock,^[8] wood smoke,^[10] lovage/Maggi seasoning,^[11] and many other substances can be produced, depending on reaction conditions (time, temperature, hydrolysis method, additional feedstock such as xylose and spices).^[8][12]

According to the European Code of Practice for Bouillons and Consomms, hydrolyzed protein products intended for retail sale correspond to these characteristics:^[13]

• Specific gravity at 20C min.: 1.22
• Total nitrogen min.: 4% (on dry matter)
• Amino nitrogen min.: 1.3% (on dry matter)
• Sodium chloride max.: 50% (on dry matter)

When foods are produced by canning, freezing, or drying, some flavor loss is almost inevitable. Manufacturers can use HVP to make up for it.^[6] Therefore, HVP is used in a wide variety of products such as in the spice, meat, fish, fine-food, snack, flavor, and soup industries.

3-MCPD, a carcinogen in rodents and a suspected human carcinogen, is created during acid-hydrolysis as glycerol released from lipid (e.g. triglycerides) reacts with hydrochloric acid. Legal limits have been set to keep aHVP products safe for human consumption. aHVP manufacturers can reduce the amount of 3-MCPD to acceptable limits by (1) careful control of reaction time and temperature (2) timely neutralization of hydrochloric acid, optionally extending to an alkaline hydrolysis step to destroy any 3-MCPD already formed (3) replacement of hydrochloric acid with other acids such as sulfuric acid.^[7]

As an allergen[edit]

Whether hydrolyzed vegetable protein is an allergen or not is contentious.

According to European law, wheat and soy are subject to allergen labelling in terms of Regulation (EU) 1169/2011 on food information to consumers. Since wheat and soy used for the production of HVP are not exempted from allergen labelling for formal reasons, HVP produced by using those raw materials has to be labelled with a reference to wheat or soy in the list of ingredients.

Nevertheless, strong evidence indicates at least aHVP is not allergenic, since proteins are degraded to single amino acids which are not likely to trigger an allergic reaction. An 2010 study has shown that aHVP does not contain detectable traces of proteins or IgE-reactive peptides. This provides strong evidence that aHVP is very unlikely to trigger an allergic reaction to people who are intolerant or allergic to soy or wheat.^[14] Earlier peer-reviewed animal studies done in 2006 also indicate that soy-hypersensitive dogs do not react to soy hydrolysate, a proposed protein source for soy-sensitive dogs.^[15]

There are reports of a cosmetic-grade aHVP, Glupearl 19S (GP19S), inducing anaphylaxis when present in soap. Unlike food aHVP, this Japanese wheat aHVP is only very mildly hydrolyzed.^[16] The unusual chemical condition makes GP19S more allergenic than pure gluten.^[17] Newer regulations for cosmetic hydrolyzed wheat protein have been developed in response, requiring an average molecular mass of less than 3500 Da about 35 residues long. In theory, "an allergen must have at least 2 IgE-binding epitopes, and each epitope must be at least 15 amino acid residues long, to trigger a type 1 hypersensitivity reaction." Experiments also show that this degree of hydrolysis is sufficient to not trigger IgE binding from GP19S-allergic patients.^[16]

Allergenicity of eHVP depends on the specific food source and the enzyme used. Alcalase is able to render chickpea and green pea completely non-immunoreactive, where as papain only achieves partial reduction. Alcalase is also unable to make white beans non-reactive due to the antinutritional factors preventing complete digestion.^[18] Alcalase, but not "Flavourzyme" (a commercial Aspergillus oryzae protease blend^[19] for eHVP production), is able to make roasted peanut non-reactive.^[20]

See also[edit]

References[edit]

1. ^ Manley/Fagerson (1971). Aspects of Aroma and Taste Characteristics of Hydrolysed Vegetable Protein, The Flavour Industry. p.686 f.
2. ^ "Wrzen". Ullmanns Encyclopedia of Technical Chemistry. Vol.18 (3rded.). Munich, Berlin, Vienna. 1967.{{cite book}}: CS1 maint: location missing publisher (link)
3. ^ Reineccius (1994). Source Book of Flavours. Springer. p.140.
4. ^ Fischer, Research about amino acids, Springer 1906
5. ^ D. M. P. Phillips (1954). "Threonine and the Odour of Protein Hydrolysates". Nature. 173 (4414): 10921093. Bibcode:1954Natur.173.1092P. doi:10.1038/1731092a0. S2CID4246025.
6. ^ ^{a b} Prendergast (1974). "Protein Hydrolysate A review". Food Trade Review: 14 f.
7. ^ ^{a b c} "Code of practice for the Reduction of 3-Monochlorpropanole-1,2-Diol (3-MCPD) during the Production of acid-HVPs and products that contain acid-HVPs CAC/RCP 64-2008" (PDF).
8. ^ ^{a b c d} Kale, Prajyoti; Mishra, Anusha; Annapure, Uday S. (June 2022). "Development of vegan meat flavour: A review on sources and techniques". Future Foods. 5: 100149. doi:10.1016/j.fufo.2022.100149. S2CID248838839.
9. ^ Wu, Yi-Fang G.; Cadwallader, Keith R. (May 8, 2002). "Characterization of the Aroma of a Meatlike Process Flavoring from Soybean-Based Enzyme-Hydrolyzed Vegetable Protein". Journal of Agricultural and Food Chemistry. 50 (10): 29002907. doi:10.1021/jf0114076. PMID11982417.
10. ^ Jarunrattanasri, Arporn; Theerakulkait, Chockchai; Cadwallader, Keith R. (April 1, 2007). "Aroma Components of Acid-Hydrolyzed Vegetable Protein Made by Partial Hydrolysis of Rice Bran Protein". Journal of Agricultural and Food Chemistry. 55 (8): 30443050. doi:10.1021/jf0631474. PMID17367160.
11. ^ Blank, Imre; Schieberle, Peter (July 1993). "Analysis of the seasoning-like flavour substances of a commercial lovage extract (Levisticum officinale Koch.)". Flavour and Fragrance Journal. 8 (4): 191195. doi:10.1002/ffj.2730080405.
12. ^ Li, Xuejie; Li, Jian (2020). "The Flavor of Plant-Based Meat Analogues". Cereal Foods World. 65 (4). doi:10.1094/CFW-65-4-0040. S2CID231203281.
13. ^ "Code of practice for Bouillons and Consomms".
14. ^ Reuter A, Gerald R, Kuehne Y, Engin A, Przywara J, Worm M, Ballmer-Weber B, Holzhauser T, Vieths S. Evaluation of the allergenic potential of soy and wheat based seasonings. XXIX EAACI Congress of the European Academy of Allergy and Clinical Immunology. p.322. doi:10.1111/j.1398-9995.2010.02393.x. PMC7159487.
15. ^ Puigdemont, A; Brazs, P; Serra, M; Fondati, A (March 2006). "Immunologic responses against hydrolyzed soy protein in dogs with experimentally induced soy hypersensitivity". American Journal of Veterinary Research. 67 (3): 4848. doi:10.2460/ajvr.67.3.484. PMID16506912.
16. ^ ^{a b} Burnett, Christina; Bergfeld, Wilma F.; Belsito, Donald V.; Hill, Ronald A.; Klaassen, Curtis D.; Liebler, Daniel C.; Marks, James G.; Shank, Ronald C.; Slaga, Thomas J.; Snyder, Paul W.; Andersen, F. Alan; Heldreth, Bart (May 2018). "Safety Assessment of Hydrolyzed Wheat Protein and Hydrolyzed Wheat Gluten as Used in Cosmetics". International Journal of Toxicology. 37 (1_suppl): 55S66S. doi:10.1177/1091581818776013. PMID29761728. S2CID46889452.
17. ^ Nakamura, Masashi; Yagami, Akiko; Hara, Kazuhiro; Sano, Akiyo; Kobayashi, Tsukane; Matsunaga, Kayoko (February 2015). "Antigens in Glupearl 19S Were Developed By Acid-Heat Treatment". Journal of Allergy and Clinical Immunology. 135 (2): AB254. doi:10.1016/j.jaci.2014.12.1771.
18. ^ Calcinai, Luisa; Bonomini, Maria Giulia; Leni, Giulia; Faccini, Andrea; Puxeddu, Ilaria; Giannini, Daiana; Petrelli, Fiorella; Prandi, Barbara; Sforza, Stefano; Tedeschi, Tullia (October 7, 2022). "Effectiveness of enzymatic hydrolysis for reducing the allergenic potential of legume by-products". Scientific Reports. 12 (1): 16902. Bibcode:2022NatSR..1216902C. doi:10.1038/s41598-022-21296-z. hdl:10807/230858. PMC9547019. PMID36207409.
19. ^ Merz, Michael; Eisele, Thomas; Berends, Pieter; Appel, Daniel; Rabe, Swen; Blank, Imre; Stressler, Timo; Fischer, Lutz (June 17, 2015). "Flavourzyme, an Enzyme Preparation with Industrial Relevance: Automated Nine-Step Purification and Partial Characterization of Eight Enzymes". Journal of Agricultural and Food Chemistry. 63 (23): 56825693. doi:10.1021/acs.jafc.5b01665. PMID25996918.
20. ^ Cabanillas, Beatriz; Pedrosa, Mercedes M.; Rodrguez, Julia; Muzquiz, Mercedes; Maleki, Soheila J.; Cuadrado, Carmen; Burbano, Carmen; Crespo, Jess F. (2012). "Influence of Enzymatic Hydrolysis on the Allergenicity of Roasted Peanut Protein Extract". International Archives of Allergy and Immunology. 157 (1): 4150. doi:10.1159/000324681. PMID21912172. S2CID25496670.

Hydrolyzed Protein Cat Food: Benefits, Examples and Side Effects

There are no two ways about it: Your cat is a carnivore. Though dogs can survive on plant foods in a pinch, your cats body is simply not designed to process plant matter. He has a short digestive tract and lacks the enzyme that herbivores use to break down fiber. All of this means that protein is an essential component of your cats diet. The best animal protein comes from meat, poultry, or fish, but these arent the only types youll find on a cat food label. This article will discuss non-prescription hydrolyzed protein cat food, specifically for cats with food allergies, as well as its side effects. Well go over the benefits and drawbacks of Royal Canin hydrolyzed protein cat food and help you decide which wet hydrolyzed protein cat food is best for your cat.

What Is Hydrolyzed Protein Cat Food?

An hydrolyzed Protein is proteins that have been broken down to a very small size and are found in cat food. Traditional cat food contains intact, normal-sized proteins. The majority of food allergies are caused by an abnormal reaction to intact proteins in food. A hydrolyzed protein diets goal is to disrupt or break down the proteins in the diet so that the immune system does not react to them.

Hydrolyzed proteins have been used for decades in baby formula for children who are allergic to cows milk, but their use in cat food is newer. A veterinarian will prescribe a hydrolyzed protein diet to help with the diagnosis and management of a cats food allergies. These diets are also frequently prescribed for cats suffering from inflammatory bowel disease (IBD).

Why Does a Cat Require Hydrolyzed Protein?

If a cat has food allergies or intolerances, it will require hydrolyzed protein cat food. When the immune system recognizes certain particles as foreign, allergic reactions occur. Certain proteins are recognized as allergens by the immune system in the case of food allergies.

As previously stated, the proteins in hydrolyzed protein cat food are too small to be detected by the cats immune system. As a result, hydrolyzed protein foods are ideal for cats who have adverse food reactions.

Hydrolyzed Protein Cat Food

Based on what youve read thus far, its not surprising that we dont strongly recommend hydrolyzed protein cat food. Your veterinarian is the only one who can truly say whether this diet is best for your cat, but if he suggests it, we encourage you to look into other options. If you want to feed your cat hydrolyzed protein, we recommend the following two recipes:

#1. Blue Buffalo Natural Veterinary Diet HF Hydrolyzed For Food Intolerance Dry Food

Youre unlikely to find a non-prescription hydrolyzed protein cat food, but if youre willing to pay the price for a prescription, we recommend Blue Buffalo Natural Veterinary Diet HF Hydrolyzed for Food Intolerance. This formula, designed specifically for cats with food allergies and intolerances, contains hydrolyzed salmon, a highly digestible form of animal protein.

This recipe contains omega-3 fatty acids for healthy skin and coat, as well as key antioxidants to boost your cats immunity. This recipe is also grain-free, which reduces the risk of allergies and intolerances, and it has a natural flavor that your cat will enjoy.

#2. Blue Buffalo Natural Veterinary Diet HF Hydrolyzed For Food Intolerance Canned Food

For cats with food allergies or intolerances, it is critical to find a recipe that is gentle on the stomach as well as one that does not contain the food to which your cat is allergic. A wet food, such as this Blue Buffalo Natural Veterinary Diet HF Hydrolyzed Canned Food recipe, is a good choice for very sensitive cats. It does require a prescription, but it is made with hydrolyzed salmon and is formulated specifically for food intolerance.

Hydrolyzed salmon is a highly digestible protein that is supplemented with fish oil and flaxseed to provide an abundance of omega-3s. The formula also includes blueberries and cranberries as natural antioxidant sources, as well as no corn, wheat, soy, or artificial additives.

#3. Hills Prescription Diet z/d Skin/Food Sensitivities Dry Cat Food

Hills Prescription Diet is made up of highly hydrolyzed single animal protein and carbohydrate sources. It is designed to reduce the likelihood of adverse food reactions, improve the skin barrier, and promote healthy skin and hair. The food is also high in natural dietary fiber, which aids digestion and maintains normal stool consistency. The recipe is available in both dry and wet cat food forms. The dry food is available in 4- and 8.5-pound bags, and the wet food is available in 5.5-ounce packs of 24 cans.

#4. Purina Pro Plan Veterinary Diets HA Hydrolyzed Feline Formula

To reduce the risk of adverse food reactions and food intolerances, this Purina Pro Plan Veterinary diet contains hydrolyzed soy protein isolate and rice starch. It also contains hydrolyzed chicken and hydrolyzed chicken liver to round out the protein sources. The food is easy to digest and suitable for cats of all life stages because it only contains one carb source. The hydrolyzed protein cat food comes in 8-pound bags.

Royal Canin Hydrolyzed Protein Cat Food

The Royal Canin Hydrolyzed Protein Adult Dry Cat Food is extremely palatable and calorie-dense, with aromatic kibble that whets the cats appetite. It is unlikely that the formula will cause skin or gastrointestinal reactions. Furthermore, because it is low in phosphorus and high in antioxidants and fish oil fatty acids, it promotes healthy kidney function (EPA and DHA). A 6.6-pound bag of food is available.

• Type: Dry cat food
• Best for: Adult cats with food sensitivities
• Price: $28.00/lb

Pros

• Delicious and energy-dense formula
• Reduces the likelihood of skin and gastrointestinal reactions
• Antioxidant and omega-3 fatty acid rich
• Low phosphorus for kidney and urinary health
• Aromatic kibble that stimulates appetite

Cons

• A veterinary prescription is required.
• Very high price tag

Ingredient Analysis: The first two ingredients are brewers rice and hydrolyzed soy protein, which may not be ideal for a cat that requires animal protein to survive. Chicken fat and fish oil are added for animal content, but they are the only two animal products in this food designed for carnivores. However, micronutrients such as choline chloride and taurine are added to vitamin supplements and are beneficial to bodily function.

Review: While there are few reviews, those that are highly rated express satisfaction with the products quality. Their cats appear to enjoy it, and their allergy symptoms have been reduced or even eliminated with the use of this food. The price and the seemingly unreasonable price increase on Amazon by some of the sellers were criticized in critical reviews.

Non-Prescription Hydrolyzed Protein Cat Food

If you truly believe hydrolyzed protein is the best option for your cat and have the support of your veterinarian, we can only recommend the two Blue Buffalo Natural Veterinary Diet recipes discussed above. Its unlikely that youll come across a non-prescription hydrolyzed protein cat food.

We dont want to be too harsh on veterinary diets because they can be beneficial in some cases. When it comes to cat food allergies, however, an alternative to hydrolyzed protein cat food can be just as effective as a veterinary diet and is likely to be more nutritious.

Here are our recommendations for limited-ingredient cat food that is ideal for allergic cats:

#1. Smalls Fresh Bird Cat Food Delivery Service

Fresh food provides excellent nutritional value for cats when it comes to high-quality cat food. Small, fresh food is our top pick because it is made in smaller batches with high-quality ingredients. Simply provide some basic information about your cats age, weight, and activity level so that they can calculate his calorie needs, and youll receive automatic shipments of fresh food delivered right to your door. Smalls provides two recipes, one with chicken and one with beef, both of which are made with fresh fruits and vegetables. If your cat has a specific food allergy, you can discuss your concerns with the company, and they may be able to work with you on a custom meal plan.

#2. Ziwi Peak Lamb Recipe Canned Food

Despite not being marketed as a low-calorie diet, this canned food from Ziwi Peak contains a single source of animal protein and a short list of main ingredients. Its made up of 92% meat, organs, and New Zealand mussels, which are high in glucosamine and chondroitin, which help with joint health.

This canned food is high in moisture, which benefits both your cats hydration and digestive health. This recipe calls for 100% free-range, grass-fed lamb from New Zealand that has been ethically and sustainably sourced and is free of antibiotics and growth hormones.

#3. Canidae Grain-Free PURE Ocean With Tuna Indoor Formula Limited Ingredient Diet Dry Food

Although indoor cats nutritional needs are not significantly different from those of outdoor cats, they can sometimes benefit from a slightly higher fiber content to prevent hairballs. This Canidae Grain-Free PURE Ocean with Tuna Indoor Formula is made with a limited list of ingredients, making it ideal for cats with allergies. It contains tuna as the primary ingredient, followed by a salmon meal and a menhaden fish meal.

Hydrolyzed Protein Cat Food Wet

Because wet food is an important source of hydration for cats, lets start with the best-hydrolyzed protein wet cat foods available. These frequently overlap with kibble versions by the same brand, so we chose either kibble or wet food to focus on. However, many of these hydrolyzed protein cat foods are available in both wet and dry forms.

#1. Blue Buffalo Hydrolyzed Wet Cat Food

When it comes to hypoallergenic cat foods that help alleviate allergy symptoms while also ensuring your cat gets the moisture it needs to stay hydrated, Blue Buffalo hydrolyzed wet cat food is an excellent source of hydrolyzed protein.

#2. Ziwi Peak Hydrolyzed Cat Food

Another popular option for treating allergy symptoms in cats is this hydrolyzed protein from New Zealand. The recipe is suitable for a complete prey diet. This means that Ziwis recipes only contain ingredients that your cat would consume naturally or while hunting. One of the reasons this works with hydrolyzed protein diets for cats is that it gives your cat access to animal parts that arent normally included in regular cat food, such as organs.

Hydrolyzed Protein Cat Food Side Effects

Some dogs may experience diarrhea, constipation, or other digestive upsets when fed hydrolyzed protein dog food. It also has a lower nutritional value than most dog foods. Some dogs are so put off by the smell and texture of hydrolyzed protein that they refuse to eat it in the first place, which can lead to weight loss and malnutrition over time.

Furthermore, hydrolyzed protein dog food does not always eliminate your dogs allergy symptoms which is what it was designed to do! Many pet parents have discovered that their pups itchiness or other symptoms persisted even after switching to a hydrolyzed protein diet. Several studies have found that hydrolyzed protein dog foods can still elicit an immune response in some dogs.

There are several reasons why your dog may still experience symptoms after eating hypoallergenic hydrolyzed protein dog food. Despite the chemical alteration, your dog may be reacting to the protein itself, or the reaction may be triggered by one of the other ingredients or additives in the food.

Why would a cat need hydrolyzed protein?

Veterinarians recommend hydrolyzed protein pet food for companion dogs and cats who have a skin sensitivity (allergy) or who have been diagnosed with inflammatory bowel disease or food intolerance.

Is hydrolyzed protein safe for cats?

A veterinarian should be consulted before feeding a hydrolyzed protein diet to cats. These foods are well-balanced and suitable for long-term feeding. Your veterinarian must ensure that a hydrolyzed protein cat food is appropriate for your cats specific medical situation.

Can my cat be allergic to hydrolyzed food?

Similarly, allergic pets may react differently to different diets containing the same hydrolyzed proteins. The majority of hydrolyzed proteins in commercial diets exceed the 10-kDa size limit and are thus not truly hypoallergenic.

What protein is best for cats with allergies?

Cats are most commonly allergic to chicken, but they can also be allergic to beef, turkey, egg, soy, or milk, as well as less common meats like venison or duck. Grain and gluten allergies are extremely unlikely in cats.

How long does it take for hydrolyzed cat food to work?

If your cats symptoms are caused by a food allergy, their digestive issues should improve within 13 weeks when using a hydrolyzed protein diet as part of a vet-managed elimination diet trial. If they have skin problems, it can take up to 12 weeks for the symptoms to improve.

How long does it take for a hydrolyzed diet to work for cats?

between six and ten weeks

Most veterinarians recommend feeding a hydrolyzed protein diet to a dog for six to ten weeks. At that point, your veterinarian will most likely perform a dietary challenge to determine whether your dog is truly allergic to the suspected food ingredients.

Conclusion

Hydrolyzed proteins have been broken down into so small pieces that they will not activate your cats immune system. As a result, if your cat is prone to food allergies, hydrolyzed protein cat food may be beneficial. If you plan to feed your cat a hydrolyzed diet, consult with your veterinarian first.

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