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Horse Probiotics & Digestive Supplements
Reviewed by Dr. Teresa Manucy, DVM
Horses are notorious for their finicky digestive systems—they’re easily upset by stress and changes to their diet or environment. Probiotics for horses may seem like the ideal solution, given the strong scientific support for probiotics benefiting humans. Horses have very different digestive systems than humans, however, so it’s important to choose probiotics for horses carefully and to administer them under veterinary guidance. Here are some factors to consider when shopping for horse probiotics:
- Form: Probiotic supplements for horses are available in numerous forms, including pellet, powder, paste, liquid, and others
- Bacterial strains: Check the label to determine which probiotic strains are included in the formula
- Colony forming units (CFUs): Larger colony counts might indicate increased probiotic efficacy; consult with your veterinarian
- Prebiotics: Some products contain added prebiotics as food to support probiotic growth and proliferation
Although research on the therapeutic benefits of probiotics for treating or preventing gastrointestinal diseases is limited, these supplements may aid in supporting regular digestion in healthy horses. Your vet is the best person to assess whether probiotics might benefit your individual horse and, if so, which ones. If your vet recommends them, take advantage of Chewy’s Autoship program to receive regular deliveries of probiotics for horses on a schedule that works for you.
Frequently Asked Questions about Horse Probiotics & Digestive Supplements
Do vets recommend probiotics for horses?
Yes, some veterinarians might recommend probiotics for horses recovering from periods of stress or digestive illness to help restore healthy balance to the gut microbiome.
Do probiotics really work for horses?
Probiotics may help reestablish or maintain healthy levels of beneficial bacteria in the horse’s gut. However, scientific evidence supporting the use of probiotics in horses is limited and individual results vary. Some research suggests probiotics for horses are most likely to be effective when the combination of bacterial strains is tailored to treat a specific disease.
How often should a horse get probiotics?
Your vet is the best person to assess the ideal dosage and frequency of probiotics for your horse. They may recommend daily supplementation for some horses while others may only need periodic treatment in times of increased stress or digestive disease.
What is the difference between probiotics and prebiotics for horses?
Probiotics and prebiotics are very different. Probiotics are live microorganisms that can help promote healthy microbiotic balance in a horse’s gut. Prebiotics are non-digestible substances that serve as food for probiotics, helping them grow and function.
Do horses need probiotics?
Absolutely. Horses are incredibly sensitive to digestive upsets, and probiotics can be super helpful. They restore the good bacteria in your horse's gut after antibiotics, during travel stress, or when changing feed. Think of probiotics as a tiny digestive team that keeps your horse's stomach happy.
What kind of digestive supplements can I give my horse?
You can give your horse prebiotics (fiber that feeds good bacteria), probiotics (live beneficial bacteria), digestive enzymes (which help break down food), yeast cultures (to improve fiber digestion), and hindgut buffers (to maintain pH balance). Many products combine these ingredients for maximum benefit.
What ingredients should I look for in digestive supplements for horses?
Look for beneficial bacteria like Lactobacillus and Bifidobacterium, prebiotics like FOS (fructooligosaccharides) and MOS (mannan oligosaccharides), and quality yeast cultures. Digestive enzymes like amylase and cellulase are great for feed efficiency. For horses prone to ulcers, ingredients like calcium carbonate or aloe vera can be soothing. The best formulas combine several of these quality, helpful ingredients.
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