---
product_id: 771208268
title: "Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages"
brand: "dr. bill's"
price: "VT13650"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/771208268-dr-bill-s-feline-immune-support-boosts-cat-immunity-health
store_origin: VU
region: Vanuatu
---

# Turkey Tail Mushroom boosts gut & immune health Vitamin C & Zinc for cellular antioxidant protection Clinically studied Beta Glucan for immune defense Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages

**Brand:** dr. bill's
**Price:** VT13650
**Availability:** ✅ In Stock

## Summary

> 🐾 Fortify your feline’s fortress — because their health deserves the best!

## Quick Answers

- **What is this?** Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages by dr. bill's
- **How much does it cost?** VT13650 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/771208268-dr-bill-s-feline-immune-support-boosts-cat-immunity-health)

## Best For

- dr. bill's enthusiasts

## Why This Product

- Trusted dr. bill's brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **All-Age Immune Shield:** Supports kittens to seniors with daily immune resilience
- • **Rapid Recovery Formula:** Colostrum and Echinacea speed up healing and inflammation reduction
- • **Cellular-Level Wellness:** Antioxidants neutralize free radicals for long-term vitality
- • **Science-Backed Natural Power:** Clinically proven ingredients elevate your cat’s defense system
- • **Veterinarian Trusted & USA Made:** Formulated by Dr. Bill Barnett with 40+ years of expertise

## Overview

Dr. Bill’s Feline Immune Support is a premium powder supplement designed for cats of all ages, combining clinically studied Beta Glucan, Turkey Tail Mushroom, Vitamin C, Zinc, and Colostrum to enhance immune function, promote cellular health, and accelerate recovery. Developed by a leading veterinarian and crafted in the USA, it offers scientifically backed, natural immune defense to keep your cat thriving year-round.

## Description

Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages

## Features

- Supports a Strong, Resilient Immune System: Helps your cat fight off illness, recover faster, and stay healthy year-round with proactive daily immune support. Ideal for kittens, adults, and senior cats.
- Backed by Science, Powered by Nature: Features clinically studied ingredients like Beta Glucan and Turkey Tail Mushroom to strengthen immune cells, support gut health, and defend against bacteria, viruses, even environmental and seasonal allergies.
- Protects at the Cellular Level: Nrf2 Antioxidant Activators, Vitamin C, and Zinc help neutralize harmful free radicals, reduce oxidative stress, and support healthy cellular function for long-term wellness.
- Promotes Faster Recovery & Response: Colostrum, Echinacea, and other immune-boosting compounds aid T-cell activity and reduce inflammation, helping your cat bounce back quicker from everyday immune challenges.
- Veterinarian-Formulated & Made in the USA: Developed by Dr. Bill Barnett, one of America’s top animal health experts with 40+ years of experience. Crafted in the USA with premium ingredients for purity, safety, and results you can trust.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 7.19 x 7.19 x 7.8 cm; 60 g |
| Manufacturer reference | DB-FIS-60- UPC |
| Breed Recommendation | All Breed Sizes |
| Item Form | Powder |
| Size | 2.12 oz |
| Quantity | 1 |
| Specific Uses | Health Defense, Improving Cellular Health, Nrf2 Antioxidant Activation, Reducing Oxidative Stress, The Innate Immune System |
| batteries required | No |
| Batteries Included | No |
| Item Weight | 60 g |

## Product Details

- **Brand:** Dr. Bill's
- **Item form:** Powder
- **Active Ingredients:** Colostrum, Echinacea, Beta 1,3/1,6 Glucan, Turkey Tail Mushrooms, Nrf2 Antioxidant Activators, Vitamin C & Zinc
- **Item weight:** 60 Grams
- **Product benefits:** Immune Health | Immune Response | Cellular Protection | A Strong, Healthy Life

## Images

![Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages - Image 1](https://m.media-amazon.com/images/I/716XmgfaM3L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Why is there so much arginine in the product? My herpes cat needs support but Im afraid to give it to him as arginine triggers the virus.**
A: Hello - Thank you for your question. We include Arginine in Feline Immune Support because Arginine is the most important essential amino acid required by the adult cat. Arginine detoxifies ammonia, which results from the breakdown of proteins. It also has an important function in the urea cycle. If a cat goes without Arginine for very long, even a few hours, it will die. The daily requirement is set at 2,600 mg/day for the average size cat.  Arginine is an essential amino acid, which means that it must come from their diet as they cannot produce it internally.   
Dr. Bill's The Feline Immune Support provides 29.06 mg of arginine/scoop or about 1.12% of the daily needs, as cats will also receive arginine in a healthy diet. 
The best sources of arginine: 
1.	Nuts and seeds. Seeds and nuts are high in arginine. Nuts and seeds are significant sources of arginine. 
2.	Meat products. Meat is a complete source of protein because it includes all of the amino acids the body requires, including arginine.
3.	Legumes. Chickpeas are a great source of protein and provide plenty of arginine. Legumes are a family that includes beans, peas, and pulses.
4.	Seaweed. Seaweed is a popular health food that provides high levels of arginine. A cup of dried seaweed contains 4.645 g of the amino acid.
You can see why wild cats prefer to hunt for animal source protein (red meat) since nuts, legumes and seaweed were not likely available sources.  Pet foods today may provide some red meat, but the most likely outcome is that most cats eating dry food or wet foods using seafood entrees or chicken need supplemental arginine in order to thrive.
Research shows that while it is true that Arginine has been shown to be required in the formation of herpesvirus capsid protein, most studies recommend NOT reducing arginine in the cat because it is so essential for health. Any correlation between maintaining normal arginine levels and the triggering of herpesvirus has not been shown. 
Let us know if you have any further questions!
Dr. Bill Barnett

**Q: I have always ordered health defense and ordered immune by mistake. cab it be returned if opened but not used?**
A: I would ask Amazon; being it was opened...

**Q: How many mg of lactoferrin is in this?   And is it bovine lactoferrin?**
A: There are 3.63 mg lactoferrin in every 630 mg level scoop.  Yes, it is bovine lactoferrin.

**Q: Can this help cats heal from Stomatitis?**
A: Feline Immune Support is designed to boost the innate immune system, which may help the body fight off the primary causes of stomatitis such as viruses, bacteria or periodontal disease.

## Frequently Bought Together

- Dr. Bill’s Feline Immune Support | Boosts Cat Immunity and Health with Colostrum, Beta Glucan, Turkey Tail Mushroom, Zinc & Vitamin C | Powder Supplement for Cats of All Ages
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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-01*