







Roll over image to zoom in
Hill's Prescription Diet
z/d Low Fat Hydrolyzed Soy Recipe Dry Dog Food
AVAILABLE SIZES
8lb, 17.6lb, 25lb
Nutrition specially formulated with hydrolyzed soy protein and low fat levels to help avoid adverse food reactions and promote healthy skin in dogs with food and fat sensitivities. Fortified with Hill's breakthrough ActivBiome+ ingredient technology clinically shown to rapidly activate the gut microbiome to support digestive health and well-being.
PRIMARY PRODUCT
RECOMMENDATION
Food Sensitivities
Alternate Product Recommendation
Digestive Care, Skin Care
FLAVOR
Hydrolyzed Soy Recipe
BREED SIZE
Small Breed, Medium Breed, Large Breed
FOOD FORM
Dry Food
LIFESTAGE
Adult, Senior

#1 VETERINARIAN
RECOMMENDED

100% SATISFACTION GUARANTEE
At Hill’s, we’re dedicated to making foods your pet will love. If you’re not satisfied for any reason with a product purchased from one of our authorized sellers, simply return the unused portion to the place of purchase for your money back or a replacement product. Additional terms may apply. Please click here for full details.
Dogs with recurrent gastrointestinal upset may have a food or fat sensitivity. Dogs that have a food allergy (typically to a protein in the food) or intolerance, may respond to a food designed for food sensitivities while dogs with a fat sensitivity require a low fat food but determining which nutrition to use is frequently a trial and error process.
With this in mind, Hill's nutritionists and veterinarians developed Prescription Diet z/d Low Fat, which is clinical nutrition specially formulated for dogs with food and fat sensitivities.
How it helps:
- Nutrition to help manage food & fat sensitivities
- Formulated to help improve skin & coat
- Formulated to promote easy digestion & help normalize stool
- Helps support a healthy immune system
- S+OXSHIELD: Formulated to promote a urinary environment that reduces the risk of developing struvite & calcium oxalate crystals
How it works:
- Highly digestible, hydrolyzed soy protein & low in fat
- Rich in omega-6, and 3 fatty acids from fish oil
- Unique prebiotic blend to fuel activity of beneficial gut bacteria
- Clinically proven antioxidants
- Formulated without intact animal protein sources
Additional info:
Hill's Prescription Diet z/d Low Fat Dry Dog Food is a complete and balanced food that provides all the nutrition your dog needs. Please consult your veterinarian for further information on how our Prescription Diet foods can help your dog to continue to enjoy a happy and active life.

ActivBiome+ ingredient technology is a proprietary blend of prebiotics shown to rapidly activate the gut microbiome to support digestive health and well-being

Formulated to promote a urinary environment that reduces the risk of developing struvite & calcium oxalate crystals

Made in the USA with global ingredients you can trust

Proud to have helped 13 MILLION SHELTER PETS find a forever home & counting
INGREDIENTS: Corn Starch, Hydrolyzed Soy Protein, Powdered Cellulose, Dicalcium Phosphate, Soybean Oil, Hydrolyzed Chicken Flavor, Ground Pecan Shells, Coconut Oil, Lactic Acid, Potassium Chloride, Flaxseed, Glyceryl Monostearate, Dried Beet Pulp, Dried Citrus Pulp, DL-Methionine, Fish Oil, Choline Chloride, Calcium Sulfate, Pressed Cranberries, vitamins (Vitamin E Supplement, L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Thiamine Mononitrate, Pyridoxine Hydrochloride, Calcium Pantothenate, Riboflavin Supplement, Vitamin A Supplement, Biotin, Vitamin B12 Supplement, Folic Acid, Vitamin D3 Supplement), Calcium Carbonate, Iodized Salt, Taurine, Magnesium Oxide, minerals (Ferrous Sulfate, Zinc Oxide, Copper Sulfate, Manganous Oxide, Calcium Iodate, Sodium Selenite), L-Tryptophan, Mixed Tocopherols for freshness, Natural Flavors, L-Carnitine, Beta-Carotene.
Ask your veterinarian for specific feeding instructions for your pet. Daily Feeding Recommendations are only a guide and a place to start. Grams are the most accurate form of measurement; cups are estimated from grams. For best results: – Gradually transition to this new food for 7 days or more. – Exclusively feed the recommended Prescription Diet dry and wet foods. – Keep fresh water available at all times. – Have your veterinarian monitor your pet's condition. – To prevent suffocation, keep the packaging out of the reach of pets & children.
Adult maintenance
Weight of Dog - lbs (kgs) | Amount per Day - cups (grams) |
---|---|
5 (2,3) | 2/3 (65) |
10 (4,5) | 1 1/8 (110) |
15 (6,8) | 1 1/2 (150) |
20 (9,1) | 1 3/4 (175) |
30 (14) | 2 1/2 (250) |
40 (18) | 3 (295) |
50 (23) | 3 2/3 (365) |
60 (27) | 4 1/4 (420) |
70 (32) | 4 3/4 (470) |
80 (36) | 5 1/4 (520) |
100 (45) | 6 1/4 (620) |
120 (54) | 7 (695) |
Animal feeding tests using AAFCO procedures substantiate that Hill's Prescription Diet z/d Low Fat Hydrolyzed Soy Recipe Dry Dog Food provides complete and balanced nutrition for maintenance of adult dogs.

Days 1-2

Days 3-4

Days 5-6

Day 7

Days 1-2

Days 3-4

Days 5-6

Day 7

Days 1-2

Days 3-4

Days 5-6

Day 7
3198 kcal/kg (317 kcal/cup†)
Nutrient | Dry Matter1 % |
Protein | 27 % |
Fat | 7.4 % |
Carbohydrate / NFE | 55.4 % |
Crude Fiber | 4.5 % |
Calcium | 0.8 % |
Phosphorus | 0.55 % |
Potassium | 0.85 % |
Sodium | 0.38 % |
Magnesium | 0.1 % |
Vitamin C | 123 ppm |
Vitamin E | 741 IU/kg |
EPA | 0.084 % |
Total Omega-3 FA | 0.6 % |
Total Omega-6 FA | 2.07 % |
Carnitine | 350 ppm |
References
1The nutrient in the product after moisture is removed. It is used to make direct comparisons of nutrient profiles with differing moisture contents.
†An eight fluid oz. measuring cup of z/d Low Fat Hydrolyzed Soy Recipe Dry Dog Food contains 3.5 oz. by weight.
Dog SKUs:
- 4965
- 7048
- 2975
- 605142
- 10451
- 10450
- 605141
- 7038
- 7040
- 4966
- 10763
- 10765
- 10449
- 10452
- 7057
- 4968
- 4969
- 7015
- 7016
- 10509
- 2697
- 7009
- 7006
- 7007
- 7011
Cat SKUs:
- 604707
- 10806
- 6173
- 10443
- 10448
- 603517
- 10802
- 6610
- 10810
- 6612
- 6111
- 10766
- 10768
- 10769
- 10767
- 7400
- 10446
- 10444
- 604708
- 2974
- 10643
- 604706
- 4531
- 604693
- 4450
- 604202
- 604351
- 4281
- 3404
- 10083
- 10082
Prescription Diet®
Groundbreaking nutrition that can save the lives of sick pets and comfort the people who care for them.