Gastrex® for Dogs: Holistic Vet Guide to Gut Health & Detox Care

The following information is a summary and review based on Dr. Candy’s professional experience and recommendations. Any summary or statement has not been provided nor influenced by the manufacturer.

As a holistic veterinarian and lifelong dog parent, I’ve seen how much digestive health affects everything—from your dog’s skin and energy to their mood and immune system. When the gut isn’t happy, the whole body feels it.

That’s why I often recommend Gastrex® by Standard Process. It’s a whole-food supplement that supports digestion, detoxification, and overall comfort. I use it for dogs who struggle with sensitive stomachs, gas, bloating, or general digestive upset—and sometimes for skin or immune concerns tied back to gut imbalance.

What Is Gastrex® by Standard Process?

Gastrex® is a blend of natural ingredients formulated to calm the digestive tract, support liver function, and promote healthy elimination. Standard Process has been crafting whole-food supplements since 1929, combining plant-based nutrients and organ extracts to help the body heal itself naturally.

In my holistic practice, Gastrex® fits beautifully into wellness programs for dogs who need:

• Help with chronic or occasional digestive upset
• Liver and detox support
• A gentle aid for toxin exposure or processed diets
• Support for skin or allergy-related conditions linked to gut health

It’s not a quick fix. Instead, it helps restore your dog’s internal balance so their body can do what it’s designed to do—heal and thrive.

Key Benefits of Gastrex® for Dogs

Here’s how Gastrex can help your dog feel better from the inside out:

Supports Healthy Digestion

• Helps calm the stomach and intestines.
• Reduces gas, bloating, and indigestion.
• Promotes regular bowel movements and nutrient absorption.

Aids Natural Detoxification

• Helps the liver and kidneys process and eliminate toxins.
• Useful for dogs exposed to pesticides, lawn chemicals, or commercial foods.

Strengthens the Immune System

• A balanced gut supports stronger immunity.
• Can help dogs resist infections and recover faster from illness.

Promotes Clearer Skin and Coats

• Many skin problems start in the gut.
• Improving digestion often leads to healthier skin and reduced itching.

Boosts Energy and Mood

• Better digestion means better nutrient absorption and more vitality.
• A balanced gut can improve mood and reduce anxious behaviors.

Supports Weight Management

• Helps the body process nutrients efficiently.
• Can aid in maintaining a healthy weight when combined with proper diet and exercise.

Key Ingredients in Gastrex® and How They Work

The real power of Gastrex comes from its whole-food ingredients that work together to soothe, nourish, and detoxify.

Each of these ingredients contributes to Gastrex’s multi-system benefits: improved digestion, reduced inflammation, liver support, and balanced nutrient absorption. Together, they encourage your dog’s body to heal and maintain itself naturally.

Health Concerns That May Improve With Gastrex®

Gastrex® is especially helpful for dogs with:

• Digestive disorders such as gastritis, acid reflux, or inflammatory bowel disease (IBD).
• Chronic detox needs, including environmental toxin exposure or medication use.
• Weakened immune systems due to poor digestion or chronic stress.
• Nutrient absorption issues, especially in seniors or dogs with dull coats or low energy.
• Skin problems connected to internal inflammation or food sensitivities.

By reducing inflammation, soothing the GI tract, and enhancing nutrient use, Gastrex helps restore balance from the inside out. I often pair it with cold laser therapy for dogs dealing with chronic inflammation or digestive discomfort, as the two approaches complement each other beautifully.

Dosage and Administration

General guideline:

• Small dogs (under 20 lbs): ½ capsule twice daily
• Medium dogs (21–50 lbs): 1 capsule twice daily
• Large dogs (over 50 lbs): 1½ capsules twice daily

How to give it:

• Offer Gastrex 10–15 minutes before meals for best absorption.
• You can open the capsule and mix it with a small amount of wet food or broth if your dog is picky.
• Keep dosing consistent each day for the best results.

If you’re unsure about the right dose or your dog has an existing condition, schedule an online holistic consultation with me. I’ll tailor the plan to your pet’s size, diet, and current health.

Possible Side Effects and Precautions

Gastrex® is gentle and usually well-tolerated. However, every dog is unique. When starting any new supplement:

• Watch for mild digestive changes (temporary gas or soft stool).
• If symptoms last more than a few days, reduce the dose or pause the supplement.
• In rare cases, dogs with allergies to any listed ingredient should avoid it.
• Always check with your veterinarian if your pet is on prescription medication or has chronic health concerns.

Safety tip: natural doesn’t mean “more is better.” Follow the dosage chart and give your dog’s body time to adjust.

My Take on Gastrex®

I use Gastrex often in my holistic practice because it supports more than digestion—it supports balance throughout the entire body. When the gut is calm and functioning well, the immune system, skin, and even behavior improve.

For dogs who need long-term support, I may combine Gastrex with other Standard Process supplements or recommend cold laser therapy to reduce inflammation and boost cellular healing.

If you’d like help choosing the right supplements or creating a holistic wellness plan for your dog, you can purchase Gastrex® by Standard Process directly through Journeys Holistic Life, or schedule a holistic consultation with me to get a personalized plan.

Your dog’s health journey starts in the gut. Supporting digestion is one of the simplest, most powerful ways to help your best friend live a longer, happier, more comfortable life.

Frequently Asked Questions