PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics
PROTECT - Soil Based Probiotics

"I have a large breed with a sensitive stomach. I've used other probiotics and none work as good as Protect. No more loose stool."

Elizabeth C. - Four Leaf Rover Customer

PROTECT - Soil Based Probiotics

The Benefits Of

Soil-Based Probiotics

PROTECT is great for healthy and unhealthy dogs alike. Rich in antioxidants, this soil-based probiotic helps support the immune system and feeds beneficial bacteria.

Supports a Healthy Gut

Soil-based probiotics are better at surviving the stomach acids than traditional probiotics for improved gut health support.

Supports Detoxification

Helps absorb nutrients from food and remove pesticides and dangerous heavy metals from the body.

Enhances Brain Function

A six year study showed blueberries helped delay mental aging in humans by up to 2.5 years.

DNM Featured On...


Now With More Probiotics

Simply mix PROTECT with your dog's daily food serving to reap the benefits of natural soil-based probiotics and antioxidants.

Product Facts

Active Ingredients per 4.2 grams (1 1/2 tsp):

Certified Organic Wild Blueberry Powder ...1.85g
Bentonite Clay ...1.4g
Chlorella pyrenoidosa ...200mg
Certified Organic Dandelion Root Powder ...150mg
Certified Organic Burdock Root Powder ...150mg
HumicSure™ (Humic and Fulvic Acid) ...150mg
Saccharomyces boulardii ...5 Billion CFU
Bacillus coagulens, Bacillus subtilius Blend ...2 Billion CFU

Inactive Ingredients: None
(No preservatives, fillers, binders, or added flavorings)

Probiotic Guide

Which Probiotic Is Right For My Dog?

We offer 3 different probiotic products, all from the Four Leaf Rover brand. So you're probably thinking "what's the difference?" and "which probiotic is best for my dog?" Read on to find out.


A daily probiotic for the maintenance of healthy guts. With whole food prebiotics and healthy soils to help safely remove toxic heavy metals from your dog.


For digestive upset, constipation or bowel diseases. Bifido For Fido contains veterinary-approved bacteria strains that are shown to benefit dogs.


Gut Guard is a veterinary-formulated blend of gut soothing ingredients that can help seal leaky guts and reduce gut inflammation. Healthy guts are the key to healthy dogs.

Serving Size


Give orally daily or as directed by your veterinarian.


5 - 25 lbs

1/2 tsp daily

(60 day supply)



26 - 50 lbs

3/4 tsp daily

(45 day supply)



51 - 75 lbs

1 tsp daily

(30 day supply)


Extra Large

76 - 100 lbs

1 1/2 tsp daily

(23 day supply)



Over 100 lbs

1 tbsp daily

(12 servings)



Frequently Asked Questions

The Four Leaf Rover Promise


We believe good health comes from within … and that the foods and supplements you choose can change your dog’s health. All our products are 100% safe and natural and are free of fillers, preservatives and harmful inactive ingredients.


Bundle And Save

Buy Single

PROTECT - Soil Based Probiotics

30 Large Servings ($0.83/serving)

Bundle & Save 20%

PROTECT - Soil Based Probiotics

90 Large Servings ($0.69/serving)

Buy & Save 10%

PROTECT - Soil Based Probiotics

60 Large Servings ($0.74/serving)


30 day money-back guarantee

We stand behind our products 100%.

If for any reason you’re not completely satisfied with your purchase, return it within 30 days for a full refund. We’ll even pay the shipping.

No questions. No hassles. Guaranteed.