EmerAid Sustain Feline

Price range: $18.49 through $209.99

100% Satisfaction Guarantee: If you are not 100% satisfied, please contact us for a refund or replacement of the unused product.

Help your elderly cat live longer and stronger.

Sustain HDN, Highly Digestible Nutrition, has been developed by veterinarians and nutritionists. It is a nutritionally balanced food that can be fed as a full meal and is formulated specifically for cats.

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Overview

EmerAid Sustain Feline is The Enhanced Bland Diet for when your cat can’t wait to feel better. A nutritionally complete high-energy recovery food and topper for when your cat can’t wait to feel better. Formulated for cats of all life stages with easy-to-digest ingredients and electrolytes to help maintain hydration and health during times of sickness, stress, or injury. Sustain Feline, a powdered formula is specifically designed for cats experiencing digestive issue and loss in weight, appetite, and energy to help cats live longer and stronger. This powder easily mixes with water, and it can be fed in a variety of ways: as a gravy, a round bite, or via syringe.

EmerAid Sustain Feline won the 2025 Pet Innovation Award in Cat Food Product of the Year.

 

Sustain HDN can help:

  • elderly cats
  • cats in hospice care
  • support the immune system of cancer patients
  • support neural health of cats with cognitive dysfunction
  • cats with
    • IBD- Intestinal Bowel Disease
    • weight loss
    • low activity
    • poor appetiteHigh Energy

Help your elderly cat live longer and stronger.

Sustain HDN, Highly Digestible Nutrition, has been developed by veterinarians and nutritionists. It is a nutritionally balanced food that can be fed as a full meal.

High Energy

Energy needs can be met with a smaller amount of food.

Rebuilding of Muscles and Increased Mobility

L-Carnitine, HDN proteins, and essential amino acids help build lean body and muscle mass.

Immune System Support

Antioxidants like Vitamin E, Vitamin C, Zinc, Taurine, Glutamine, and Arginine help support the immune system and prevent sickness.

Rapid Absorption of Vital Nutrients

Specialized ingredients allow nutrients to help the body, such as DL-Methionine, L-Lysine, Taurine, Hydrolyzed Soy Protein, and Casein.

Cell Membrane Health

Omega 3 & 6 fatty acids help support immune function, coat and skin health, and cell membrane health. They also help control inflammation.

Shelf Life

Once opened, refrigerate and use within 1 month.

Store unopened Sustain Feline in a cool, dry space. The shelf life of unopened Sustain Feline is approximately 18 months from the date of manufacturing (see the “Best Before” label).

One 100-g pouch of EmerAid Sustain Feline contains 12.5 tablespoons or enough EmerAid powder to feed one 5-kg cat for approximately 2 days.

Ingredients

Cooked Chicken, Hydrolyzed Soy Protein, Dried Chicken Liver, Corn Oil, Canola Oil, Dicalcium Phosphate, Dried Hydrolyzed Casein, Dried Whole Egg, Defatted Wheat Germ, Glucose Syrup Solids, Cellulose, Potassium Chloride, Ground Limestone, Inulin, Magnesium Sulfate, Dextrose, Choline Chloride, Citric Acid (A Preservative), DL-Methionine, Taurine, L-Lysine, Vitamin E Supplement, Vitamin B3 (Niacin), Copper Methionine Chelate, L-Carnitine, Ascorbic Acid (A Preservative), Zinc Oxide, Mixed Tocopherols (A Preservative), Vitamin B5 (Calcium Pantothenate), Sodium Selenite, Vitamin A Supplement, Vitamin B12 Supplement, Vitamin B1 (Thiamine Hydrochloride), Vitamin B2 (Riboflavin), Vitamin B6 (Pyridoxine Hydrochloride), Manganous Oxide, Vitamin B7 (Biotin), Vitamin B9 (Folic Acid), Vitamin D3 Supplement.

Guaranteed Analysis
Energy Kcal/Kg: 5025
Crude Protein (Min): 40.1%
Crude Fat (Min): 35.6%
Crude Fiber (Max): 3.0%
Moisture (Max): 5.6%
Omega 3 Fatty Acids (Min): 0.60%
Omega 6 Fatty Acids (Min): 9.06%
Calcium (Min): 1.35%
Phosphorus (Min): 1.05%
Potassium: 0.90%
Sodium: 0.33%
Chloride: 0.79%
Magnesium: 0.15%

The Enhanced Bland Diet for Cats

EmerAid Sustain Feline is The Enhanced Bland Diet for when your cat can’t wait to feel better. Formulated for cats of all life stages with easy-to-digest ingredients and electrolytes to help maintain hydration and health during times of sickness, stress, or injury. Sustain Feline, a powdered formula is specifically designed for cats experiencing digestive issue and loss in weight, appetite, and energy to help cats live longer and stronger. This powder easily mixes with water, and it can be fed in a variety of ways: as a gravy, a round bite, or via syringe.

When Your Cat Can't Wait to Feel Better

Complete and optimal recovery food for cats of all life stages

High-energy recovery food and topper

Highly digestible blend of fats, proteins, and simple carbohydrates

Hydration

Electrolyte-balanced for hydration

Fast-absorbing nutrition

Promotes lean body weight and muscle mass

Helps prevent loose stool

Balanced blend of fibers and prebiotics

Easy to mix

Simply add water

Sustain Feline Can Help:

  • Elderly cats
  • Cats in hospice care
  • Support the immune system of cancer patients
  • Cats with
    • GI upset
    • weight loss
    • low activity
    • poor appetite
Veterinarian-owned company
Veterinarian-formulated products
Small, family-owned
company in the USA

How To Feed

For mixing directions and feeding recommendations, click here

On top of regular food

In a bowl

Gravy on top of food

In a feeding syringe

As a Sustain bite

In a feeding tube

What Our Customers Are Saying

“Nothing else worked for my senior kitty"

I have a senior kitty and she has always been a little frail. A few months ago she had dropped a significant amount of weight in a short time and slowed down her eating… I went into a panic. I saw information on your Sustain HDN Feline and tried it. Almost immediately she rebounded and began to take to the Sustain. I mixed it with her wet food as well as a few other food items. But the wet food was her favorite I was so happy that she began to respond to it. Within 2 weeks she had gained almost a lb. which is remarkable for her. Nothing else worked for her I feel this Sustain helped save her and make her stronger. Zoey thanks you and so do I!

"Rico could not eat on his own and is now bright, alert, and active"

Attached are photos of Rico, a cat and patient of the Clinic at Best Friends Animal Society. Rico presented with a fever and open-mouth breathing. After several days of treatment, Rico still was not eating enough to sustain life, so a feeding tube was placed. He was fed EmerAid Sustain HDN Feline (15 milliliters per feeding) four times a day. Rico is now bright, alert, and active. He purrs when you talk to him, gives head butts to the cage, and loves life again ─ thanks to EmerAid!

Customer Reviews

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Becky

My senior kitty has lost most of her teeth and has gotten too skinny. Emeraid Sustain really helps - it's easy for her to eat and she absolutely loves it, and licks the bowl clean!

The taste must be great, my younger kitty loves it too and I have to keep her away while my senior is eating.