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GastroElm Plus FAQ: Natural Digestive Support for Horses, Dogs and Cats

GastroElm Plus is a natural digestive support supplement for dogs, cats, and horses made from slippery elm inner bark, marshmallow root, milk thistle seed, and dandelion root.

This FAQ answers common questions about ingredients, dosing, horse show season support, dogs and cats, long-term use, ingredient sourcing, and safety.

General Questions

What is GastroElm Plus?

GastroElm Plus is a natural digestive support supplement for dogs, cats, and horses made from slippery elm inner bark, marshmallow root, milk thistle seed, and dandelion root.

When mixed with water, it forms a soothing gel-like slurry that helps support digestive comfort, normal digestive function, and healthy digestion. Many pet owners and horse owners use GastroElm Plus as part of their daily digestive wellness routine and for additional digestive support during times of stress, travel, dietary changes, or recovery.

Horse owners frequently use GastroElm Plus during show season, hauling, training, and competition as part of their digestive health program to support gastric comfort, digestive wellness, and normal gut function during periods of increased stress.


What ingredients are in GastroElm Plus?

GastroElm Plus contains four carefully selected herbs that work together to support digestive and liver health in dogs, cats, and horses:

  • Slippery Elm Inner Bark — Provides natural mucilage that forms a soothing gel when mixed with water.

  • Marshmallow Root — A complementary mucilage-rich herb that helps support digestive comfort and moisture throughout the digestive tract.

  • Milk Thistle Seed — Traditionally used to support normal liver function and antioxidant activity.

  • Dandelion Root — Traditionally used to support digestion, appetite, bile flow, and liver health.

GastroElm Plus contains no artificial flavors, colors, preservatives, or fillers. The formula was designed to provide simple, natural digestive support using only four time-tested herbal ingredients.

Our slippery elm is 100% Appalachian wild-crafted slippery elm inner bark, and our supporting herbs are top-quality human-grade herbs sourced from carefully selected suppliers in Albania, Croatia, and Poland. GastroElm Plus is manufactured in the United States.

We receive and review Certificates of Analysis, or COAs, on all ingredients before they are used in our products.


How does GastroElm Plus work?

When GastroElm Plus comes in contact with water, the slippery elm inner bark and marshmallow root create a soothing gel-like slurry rich in natural mucilage. This gel helps coat and soothe the digestive tract while supporting normal digestive function and comfort.

The formula works through several complementary mechanisms:

  • Supports the natural protective lining of the digestive tract.

  • Helps maintain normal digestive comfort.

  • Supports healthy stool quality and digestive function.

  • Provides digestive support during times of stress, travel, dietary changes, or recovery.

  • Supports normal liver function through the inclusion of milk thistle seed and dandelion root.

Many pet owners administer GastroElm Plus approximately 10–15 minutes before meals so the soothing gel can coat the digestive tract before eating. Some owners report that this approach helps encourage normal appetite in animals that are reluctant to eat in the morning or experiencing digestive discomfort.

For horses, GastroElm Plus offers flexible administration options. Many horse owners top dress the dry powder directly onto feed, often alongside other supplements. Others mix the powder with water to create a slurry that can be administered orally. Some owners also incorporate GastroElm Plus into their existing digestive wellness programs that may include ingredients such as aloe vera juice.

Because horses naturally consume large amounts of water throughout the day, many owners find the product easy to incorporate into their feeding routine.


What makes GastroElm Plus different from other slippery elm products?

While many products contain only slippery elm, GastroElm Plus combines four complementary herbs selected to support both digestive and liver health.

Key differences include:

  • Four-herb formula featuring slippery elm inner bark, marshmallow root, milk thistle seed, and dandelion root.

  • Supports both digestive comfort and liver function, rather than relying on a single ingredient.

  • Suitable for dogs, cats, and horses.

  • Forms a soothing gel-like slurry when mixed with water.

  • No fillers, artificial flavors, or preservatives.

  • Can be used daily as part of a long-term digestive wellness program.

  • Trusted by pet owners, horse owners, breeders, trainers, rescues, and veterinarians for more than a decade.

Ingredient quality is also a major focus at GastroElm Plus.

We use 100% Appalachian wild-crafted slippery elm inner bark. Our supporting herbs are sourced from carefully selected suppliers in Albania, Croatia, and Poland. We do not source our herbs from China.

We review Certificates of Analysis, or COAs, for incoming ingredients before they are approved for use. Our herbs are selected for quality, consistency, and purity.

GastroElm Plus is manufactured in the United States.


Can GastroElm Plus be used long term?

Yes. Many customers use GastroElm Plus daily as part of their long-term digestive wellness routine for dogs, cats, and horses.

The formula contains only four herbs with long histories of traditional use: slippery elm inner bark, marshmallow root, milk thistle seed, and dandelion root. Many pet owners choose GastroElm Plus for ongoing digestive support because it contains no harsh ingredients and no artificial additives.

Animals experiencing occasional digestive sensitivity, stress from travel or competition, dietary changes, aging-related digestive challenges, or recurring digestive discomfort are often maintained on GastroElm Plus as part of their daily wellness program.

As with any supplement, owners should consult their veterinarian regarding their individual animal’s needs and health conditions.


Dog & Cat Questions

How do I give GastroElm Plus to dogs and cats?

For dogs and cats, GastroElm Plus can be mixed with water or bone broth to form a gel-like slurry.

Gel/slurry directions:

Mix 1 tablespoon of GastroElm Plus powder with 4 ounces of water or bone broth. Stir well and allow it to form a gel.

For digestive support, give 1/2 ml of prepared gel per pound of body weight by oral syringe before breakfast and at bedtime.

Example:
A 20 lb pet would receive approximately 10 ml per dose.

For maintenance, the prepared gel can also be mixed into food once or twice daily as needed.

If your dog or cat will not eat the gel or accept it by syringe, the dry powder may be added directly to meals. As a general dry-powder guideline, we recommend approximately 1/4 teaspoon per day for each 10 pounds of body weight, divided between meals if desired.

Prepared gel should be stored in the refrigerator for up to 7 days. Do not heat or freeze the gel.


Can dogs and cats take the dry powder instead of the gel?

Yes. While many owners prefer making GastroElm Plus into a gel or slurry, the dry powder can also be added directly to meals.

This can be helpful for dogs or cats that do not like being syringed or will not willingly eat the gel. For dry-powder feeding, we generally recommend approximately 1/4 teaspoon per day for each 10 pounds of body weight, divided between meals if desired.

The gel method may be preferred when more direct digestive coating support is desired, but the dry powder is a practical option for daily maintenance and animals that are easier to feed with meals.


Can GastroElm Plus be used for dogs with sensitive stomachs?

Yes. Many dog owners use GastroElm Plus as part of a digestive wellness routine for dogs with sensitive stomachs, occasional digestive upset, soft stools, appetite changes, or digestive discomfort.

GastroElm Plus forms a soothing gel-like slurry when mixed with water. This helps support digestive comfort, normal stool quality, and healthy digestive function.

Because digestive symptoms can have many causes, owners should consult their veterinarian if symptoms are severe, recurring, or accompanied by vomiting, blood in the stool, weight loss, dehydration, pain, or major changes in behavior.


Is GastroElm Plus safe for cats?

GastroElm Plus is used by many cat owners for digestive support. Cats are often more selective about taste and texture than dogs, so some owners mix a small amount of prepared gel or dry powder into food.

For cats, start with a small amount and increase gradually as tolerated. Many cats do best with a small serving mixed into wet food.

As with any supplement, consult your veterinarian if your cat has a medical condition, is taking medication, is pregnant or nursing, or has persistent vomiting, diarrhea, weight loss, or appetite loss.


Horse Questions

How do I give GastroElm Plus to horses?

For horses, GastroElm Plus can be top dressed onto feed as a dry powder or mixed with water or aloe juice to form a slurry.

For active digestive distress or extra digestive support:
Give 1 tablespoon of dry powder 2–3 times per day, added to feed.

For horses needing more direct support, GastroElm Plus may be mixed with water or aloe juice and administered by oral syringe.

For maintenance:
Top dress the evening feed with 1 tablespoon of dry powder daily.

Many horse owners use GastroElm Plus during training, hauling, show season, feed changes, and other stressful periods as part of their horse’s daily digestive wellness program.

Close the bag securely after use and store the powder hygienically in a cool environment protected from light.


Can GastroElm Plus be used during hauling, travel, and competition season?

Yes. Many horse owners use GastroElm Plus during hauling, training, horse shows, competitions, and other stressful events.

Travel, trailering, changes in routine, competition schedules, unfamiliar environments, and changes in feed or water can all affect digestive comfort. Many horse owners use GastroElm Plus as part of a daily digestive wellness program to help support gastric comfort, normal gut function, and overall digestive health during demanding periods.

This can be especially helpful during show season, when horses may become agitated in the trailer, stressed at the show grounds, or less comfortable due to changes in schedule and routine.

Many owners begin using GastroElm Plus several days before a show or hauling event and continue throughout the competition season as part of their horse’s regular digestive support routine.


Can GastroElm Plus help support horses with cinchy behavior or demeanor changes?

Many horse owners report that their horses become less cinchy, more comfortable being tacked up, and easier to ride when digestive comfort improves.

Digestive discomfort can sometimes show up as changes in demeanor, attitude, or rideability. Some horses may become girthy or cinchy, resent being saddled, act irritable under saddle, pin their ears, resist forward movement, or simply feel “not quite right.”

GastroElm Plus is commonly used as part of a digestive wellness program to support gastric comfort, normal digestive function, and overall gut health. While demeanor and rideability issues can have many causes and should be evaluated appropriately, many owners choose GastroElm Plus when they suspect digestive sensitivity may be contributing to changes in attitude or performance.


Is GastroElm Plus a good fit for hot horses or off-track Thoroughbreds?

Yes. Many customers use GastroElm Plus for horses that tend to run hot, including Thoroughbreds and off-track Thoroughbreds.

Hotter, more sensitive horses can be more prone to digestive stress, especially during training, hauling, competition, changes in environment, or changes in feed. Off-track Thoroughbreds may also need extra digestive support as they transition into new homes, new routines, and new feeding programs.

GastroElm Plus is often used as part of a daily digestive wellness routine to help support gastric comfort, digestive function, appetite, and overall gut health in these horses. It can be top dressed onto feed or mixed with water to create a gel-like slurry.


Can GastroElm Plus be used for rescue horses or horses coming from kill pens?

Yes. GastroElm Plus is commonly used by owners, rescues, and caregivers who are supporting horses through nutritional rebuilding, stress recovery, and changes in feed, environment, and routine.

Horses coming from difficult backgrounds may be underweight, stressed, nutritionally depleted, or dealing with digestive sensitivity. While veterinary care, dental care, parasite management, and a careful feeding plan are essential, many owners use GastroElm Plus as an affordable digestive support option during the rehabilitation process.

GastroElm Plus may help support digestive comfort, normal stool quality, appetite, and overall digestive wellness as the horse adjusts to a safer, more consistent environment.


Is GastroElm Plus appropriate for use during show season?

GastroElm Plus is designed to be a simple, clean digestive support formula for horses during training, hauling, and show season.

The formula contains only four herbs: Appalachian wild-crafted slippery elm inner bark, marshmallow root, milk thistle seed, and dandelion root. A one-tablespoon serving contains approximately 500 mg of dandelion root, along with slippery elm, marshmallow root, and milk thistle seed.

GastroElm Plus is manufactured in the United States and is not produced alongside a wide range of other animal supplements, which helps reduce cross-contamination concerns.

Many customers have used GastroElm Plus during USEF-governed show seasons as part of their horses’ digestive wellness routine. However, rules can change, and every competitor is responsible for verifying current USEF, FEI, or association requirements before using any supplement at a regulated event.

For horse owners who want digestive support without calming agents, stimulants, or complicated multi-ingredient formulas, GastroElm Plus offers a straightforward option focused on gastric comfort, digestive wellness, and normal gut function.


Can GastroElm Plus be helpful for geldings with digestive sensitivity or high-strung behavior?

Yes. Many GastroElm Plus customers use the product for geldings that seem more prone to digestive sensitivity, stress-related gut issues, or changes in attitude and rideability.

Over the years, we have noticed that many gelding owners report challenges such as digestive discomfort, sensitivity during tacking up, cinchy behavior, nervous energy, irritability, loose manure, changes in appetite, or difficulty maintaining a calm, comfortable demeanor during training, hauling, or show season.

While every horse is different, digestive discomfort can sometimes contribute to changes in behavior, attitude, and performance. A gelding that is uncomfortable may appear more high-strung, resistant, reactive, or less willing to work.

GastroElm Plus is commonly used as part of a daily digestive wellness program to help support gastric comfort, normal gut function, healthy stool quality, and overall digestive wellness. Many owners of geldings use it during training, hauling, competition season, feed changes, or other stressful periods when digestive support may be especially important.

If a gelding shows sudden or severe behavioral changes, ongoing digestive problems, weight loss, signs of pain, or changes in manure, owners should consult their veterinarian to rule out ulcers, dental issues, lameness, illness, or other underlying causes.


Quality & Sourcing Questions

Where do the ingredients in GastroElm Plus come from?

Ingredient quality is extremely important to us.

GastroElm Plus contains:

  • 100% Appalachian wild-crafted slippery elm inner bark

  • Human-grade marshmallow root sourced from Europe

  • Human-grade milk thistle seed sourced from Europe

  • Human-grade dandelion root sourced from Europe

Our supporting herbs are sourced from carefully selected suppliers in Albania, Croatia, and Poland.

We review Certificates of Analysis, or COAs, for incoming ingredients before they are approved for use, helping ensure quality, purity, and consistency from batch to batch.

GastroElm Plus is manufactured in the United States.


Does GastroElm Plus use herbs from China?

No. GastroElm Plus does not use herbs sourced from China.

Our slippery elm is 100% Appalachian wild-crafted slippery elm inner bark. Our supporting herbs are human-grade and sourced from carefully selected suppliers in Albania, Croatia, and Poland.

We review COAs for all incoming ingredients before they are approved for use in our products.


Is GastroElm Plus manufactured in the United States?

Yes. GastroElm Plus is manufactured in the United States.

We focus on simple ingredients, careful sourcing, COA review, and consistent manufacturing practices so customers can feel confident using GastroElm Plus for dogs, cats, and horses.


Safety Questions

Can GastroElm Plus be used with medications?

Many customers use GastroElm Plus alongside prescription medications, supplements, probiotics, and special diets as part of their animal’s digestive wellness program.

Because every animal’s health situation is unique, we recommend consulting your veterinarian regarding specific medications and timing.

Many owners choose to administer GastroElm Plus separately from medications simply as a matter of routine. If you have questions regarding your animal’s specific situation, your veterinarian is the best resource.


Are there any cautions for using GastroElm Plus?

GastroElm Plus is intended for animal use only.

Safe use in pregnant animals or animals intended for breeding has not been proven. If your animal’s condition worsens or does not improve, discontinue use and consult your veterinarian.

Always consult your veterinarian if your animal has a serious medical condition, is taking medications, is pregnant or nursing, or has severe or persistent digestive symptoms.


How should GastroElm Plus be stored?

Close the bag securely after use.

Store the dry powder hygienically in a cool environment protected from light.

Prepared gel can be stored in the refrigerator for up to 7 days. Do not heat or freeze the gel.


Product Options

Which size of GastroElm Plus should I buy?

GastroElm Plus is available in multiple sizes and multipacks.

  • Small Bag — Good for first-time users, small dogs, cats, and trial use.

  • Big Bag — Best value for most regular users.

  • Twin Pack — Convenient for multi-pet homes and repeat customers.

  • 4 Pack — Popular with breeders, rescues, barns, and households using GastroElm Plus daily.

  • 8 Pack — Best for barns, kennels, trainers, rescues, and high-volume users.

For horses, larger bags and multipacks are often the best value because serving sizes are larger than they are for dogs and cats.


Final Note

GastroElm Plus is not intended to diagnose, treat, cure, or prevent any disease. It is a natural digestive support supplement designed to support digestive comfort, normal digestive function, gastric wellness, healthy stool quality, and liver support in dogs, cats, and horses.

If your animal has severe symptoms, sudden changes, ongoing digestive problems, weight loss, blood in the stool, signs of pain, colic symptoms, persistent vomiting, dehydration, or worsening condition, consult your veterinarian promptly.