




Medicus Kidney Support Diet For Cats
Veterinary Authorization Required. This diet requires veterinary authorization. Submit authorization or provide your veterinarian's contact information. How it works ▾
A vet-formulated, whole-food kidney support cat food thoughtfully designed to provide gentle, targeted, kidney-conscious nutrition.
Why Medicus? Top benefits
When a pet’s needs become more complex, nutrition matters most. Scientific evidence and clinical experience support the use of whole-food nutrition to provide meaningful, targeted nutritional support.
• Whole-Food Nutrition: Responsibly sourced animal proteins, healthy fats, and whole-food ingredients form the foundation of every Medicus diet.
• Precisely Formulated: Each diet is carefully formulated with specific nutritional goals, guiding both nutrient levels and ingredient selection.
• Vet Developed, Nutritionist Reviewed: Developed in collaboration with independent veterinary specialists and nutrition consultants, with every batch undergoing rigorous testing to ensure safety, consistency, and traceability.
• Freeze-Dried for Nutritional Integrity: Freeze-drying allows Medicus to produce safe, shelf-stable food while preserving the natural nutritional integrity of whole-food ingredients.
100% Quality Guarantee
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Diet Overview
Highlights
Who would benefit from this diet?
How It Works
The Medicus Kidney Support Diet For Cats is meticulously crafted to address these key nutritional needs:

Nourishes the Body with Clean, Whole Foods
• Moderate levels of high-quality protein from meat and organs
• Moderate levels of healthy, digestible fats
• Antioxidant-rich produce
• Moderate levels of healthy, digestible fats
• Antioxidant-rich produce

Reduces Dietary Phosphorus Load
• Low-phosphorus ingredients help support balanced mineral intake
• Whole-food calcium sources, such as egg shells and chitosan, help naturally limit phosphorus absorption in the digestive tract
• Whole-food calcium sources, such as egg shells and chitosan, help naturally limit phosphorus absorption in the digestive tract

Replenishes Key Nutrients That May Be Depleted
• Added potassium and B vitamins help maintain normal nutrient balance
• Supports everyday hydration-related nutrient turnover
• Supports everyday hydration-related nutrient turnover

Supports Renal Health with Targeted Fatty Acid Balance
• Omega-3 fatty acids provide EPA + DHA
• Balanced Omega 6: Omega 3 ratio of 0.67:1
• Formulated to support the body’s natural inflammatory response
• Balanced Omega 6: Omega 3 ratio of 0.67:1
• Formulated to support the body’s natural inflammatory response
Chicken
Rice
Egg
Chicken Liver
Flaxseed
Chicken Gizzards
Ground Krill
Cranberries
Blueberries
Potassium Chloride
Sea Salt
Egg Shell
Chitosan
Mixed Tocopherols
Zinc Proteinate
B Vitamins
Our Standards
Click on a standard to read more.
100% real food
No Meat Meals
Made from real, whole-food ingredients rather than rendered meals or heavily processed powders. Whole foods provide nutrients the body can efficiently digest, absorb, and utilize.
No Meat Meals
Rendering converts animal carcasses into ingredients for animal feed. They are ground, heavily cooked, pressed to remove fats, ground again, and then dried. Included in this process are bones, organs, blood, feathers, and slaughter floor waste. Meal is a heavily processed ingredient before it’s added to kibble.
Locally Sourced Ingredients
No High-Heat Cooking
Responsibly sourced from trusted suppliers who prioritize ingredient quality and safety. This sourcing approach allows us to select ingredients such as organically grown produce, wild-caught fish, and pasture-raised beef.
No High-Heat Cooking
Avoids high-temperature processing that can degrade proteins, fats, and sensitive nutrients.
Carefully Selected Whole-Animal Meats
No Corn
Uses digestible animal proteins that provide essential amino acids to support muscle maintenance, skin integrity, immune function, and metabolic health.
Our formulas do not include corn or corn-derived ingredients. Instead, we use whole-food carbohydrate sources selected for their digestibility and nutritional contribution to the overall formulation.
Organic Produce
No Antibiotics
Pesticide exposure can increase oxidative stress and place unnecessary strain on the body. When available, we prioritize organically grown produce in our formulas. This means ingredients are grown without synthetic pesticides or herbicides, supporting cleaner, more natural nutrition from the ground up.
Because we source meat from trusted partners who follow responsible animal-raising practices, no antibiotics, hormones, or other medications are administered to the animals prior to slaughter. This helps preserve the integrity of the ingredients used in our formulas
Freeze-Dried
No Byproducts
Freeze-drying removes moisture while preserving the original nutrient profile and digestibility of whole foods without high-heat processing.
No Byproducts
Byproducts are the result of whole foods being broken down into smaller parts, like peas being broken down into pea protein, pea flour, pea fiber, and pea starch. This allows pet food companies to list these as separate ingredients on their ingredient decks.
Veterinarian Developed
No Hormones
Developed by a veterinarian using whole-food ingredients and nutritional science to support specific physiological functions through purposeful nutrition.
No Added Hormones or Routine Antibiotics
Because we source meat from trusted partners who follow responsible animal-raising practices, no antibiotics, hormones, or other medications are administered to the animals prior to slaughter. This helps preserve the integrity of the ingredients used in our formulas.
Independently Reviewed
No Artificial Preservatives
Each formulation undergoes independent review to verify ingredient safety, nutrient balance, and formulation integrity.
No Artificial Preservatives
We only use mixed tocopherols, a natural preservative, in all Medicus Diets. While it functions as a way to keep each bag of food shelf-stable and fresh, it is also an antioxidant.
Made in WI
No Artificial Flavoring
Dr. Chris Bessent is the owner and operator of the Wisconsin-based facilities where Medicus is made. This gives her the ability to provide strict oversight of every step of the production phases, from when the ingredients enter the facility to when the finished food leaves the facility for delivery to your door. Every ingredient, each production phase, and every batch of food is logged for complete traceability.
No Artificial Flavoring
Because all of our ingredients are freeze-dried, the original flavor remains, making it similar to a fresh or home-cooked diet in taste.
Limited Ingredient
No Artificial Dyes
Limited-ingredient formulations help support digestibility and enable more precise nutritional formulation for sensitive systems.
No Artificial Dyes
Artificial dyes are used in pet foods to add color to brown kibble in an attempt to give them a more desirable and aesthetically pleasing color.
Antioxidant-Rich
No Cellulose
Each Medicus formula contains naturally occurring antioxidants, including polyphenols from blueberries, carotenoids from spinach, and astaxanthin from krill. Antioxidants help protect cells from oxidative stress.
No Cellulose
Does not include non-nutritive bulking agents or filler ingredients like cellulose.
Rich in Omega-3 Fatty Acids
No Soy
Omega-3 fatty acids support normal immune function, cardiovascular health, skin integrity, and renal physiology. Medicus formulas are uniquely formulated to provide an approximate 1:1 Omega-6 to Omega-3 ratio using whole-food sources, a balance that differs significantly from conventional pet foods.
No Soy
No soy or soy-derived ingredients. Soy is often used as a concentrated plant protein, but we instead rely on whole-food animal proteins and complementary ingredients to provide complete amino acid profiles and balanced nutrition.
3rd-Party Tested
No Brewers Rice
Each Medicus diet went through complete, comprehensive 3rd-party testing. Several rounds of AAFCO Nutrient Profile testing ensured that both macro- and micronutrient levels are meeting your pet’s specific nutritional needs.
No Brewers Rice
Many kibble diets contain brewers rice, a byproduct of white rice processing. We use whole white rice selected for digestibility and nutritional contribution.
Minimally Processed
No Wheat
Prepared using gentle processing methods that preserve whole-food structure, digestibility, and nutrient availability.
No Wheat
Wheat is commonly used as a filler by commercial kibble companies because it is inexpensive and readily available. Wheat is used as a plant-based protein and isn’t as digestible or bioavailable for carnivores.
Bioavailable Proteins
No Feed-Grade Ingredients
Uses protein sources the body can efficiently digest, absorb, and utilize for tissue maintenance and metabolic function.
No Feed-Grade Ingredients
Uses ingredients selected for safety, digestibility, and nutritional integrity.
Ingredients
Chicken,
Rice,
Egg,
Chicken Liver,
Flaxseed,
Chicken Gizzards,
Ground Krill,
Cranberries,
Blueberries,
Potassium Chloride,
Sea Salt,
Egg Shell,
Chitosan,
Mixed Tocopherols,
Zinc Proteinate,
B Vitamins
Cups in a Bag
Nuggets
96.88 g/cup | 4 2/3 cups
Calorie Content
Nuggets
4227 kcal/Kg | 409.5 kcal/cup
Guaranteed Analysis
Crude Protein (min.) 30%
Crude Fat (min.) 15%
Crude Fiber (max.) 6%
Moisture (max.) 5%
Crude Fat (min.) 15%
Crude Fiber (max.) 6%
Moisture (max.) 5%
Supplemental Feeding
The Medicus Kidney Support Diet For Cats is intended for intermittent or supplemental feeding only.
Nutritional Facts
▼How to Feed
Feeding Guide
Use only as directed by your veterinarian. Medicus Veterinary Diets provide intentional nutritional support for pets with more complex needs. Feeding amounts and duration should be adjusted based on your pet's response. Always provide access to fresh water.
Rehydration Recommended
Nugget Rehydration Directions: Rehydrate by adding +/- ¾ cup of warm water for every cup of food. Mix the water and food, and wait 3-4 minutes, then serve.
Paté Rehydration Directions: Add 1 1/2 cups of hot water (120 degrees F) for every 1 cup of Medicus pate powder. Mix and let rest for 5-10 minutes. Prior to serving, add two additional tablespoons of warm water and mix.




Tested. Trusted. Vet-Approved.
Tested. Trusted. Vet-Formulated.
Real ingredients. Thoughtful formulation.
Medicus diets use whole animal proteins, organ meats, and carefully chosen produce, preserved through freeze-drying to maintain their natural nutritional integrity.
Across our Foundation, Targeted, and Veterinary diets, every formula is developed by a veterinarian and independently reviewed by veterinary professionals.

cGMP Certified Facility
Made in our own facility under veterinary oversight. Every batch meets the highest safety and quality standards—because your pet deserves nothing less.
Responsibly Sourced
We partner only with cGMP-compliant suppliers committed to sustainability and conservation. Trust but verify—it's our promise to you.
Frequently Asked Questions
Product Questions
This recipe is formulated specifically for cats who need kidney-conscious nutrition and controlled mineral levels. Because these dietary needs are typically identified and monitored by a veterinarian, we require authorization to ensure the diet is used appropriately as part of a vet-guided care plan.
This diet is formulated for cats with kidney or renal concerns, or for those whose veterinarian has recommended a kidney-support or low-phosphorus diet. Because it is designed for targeted nutritional use, it is not intended for healthy maintenance feeding unless directed by your veterinarian.
Cats with kidney concerns often benefit from carefully managed phosphorus intake. We use thoughtfully selected ingredients and whole-food mineral sources to help maintain balanced phosphorus levels while still delivering nutrient-dense nutrition appropriate for a kidney-conscious feeding plan.
Rice is included very intentionally. While we typically formulate meat-forward recipes for healthy cats, kidney-support nutrition has different priorities. Rice provides a gentle, highly digestible source of energy with naturally low phosphorus, helping maintain a controlled mineral balance while supporting steady calorie intake and easy digestion.
Yes — we strongly recommend rehydrating this recipe before serving. Adding warm water increases moisture intake, which supports normal digestion, circulation, and overall fluid balance throughout the body. For cats on a kidney-support diet, consistent hydration is an important part of a thoughtful feeding routine, and rehydration also enhances aroma and palatability.
We intentionally offer the Kidney Support Diet in both nuggets and freeze-dried paté to help support cats who may be more selective at mealtime. The paté is designed to be mixed with warm water so you can adjust the texture and moisture level to suit your cat’s preferences. You can also mix rehydrated nuggets into the paté for added texture and variety. Serving the food fully rehydrated and slightly warm enhances aroma and palatability and can help encourage more consistent intake while maintaining the diet’s carefully designed nutritional profile.
Order Questions
All orders are shipped within 1-2 business days.
We stand behind the quality of each and every product that goes out our doors. If the product you receive isn’t quite up to snuff, please reach out.