A backlit horse and rider clearing a low jump in a dusty indoor arena
Guide · 4 min read

Horse Arthritis and Joint Pain

First published May 2013 · Revised 2026

Stiffness that won't warm up. Trouble rising. A stride that has lost its reach. Arthritis is one of the most common reasons a horse slows down, and the trouble rarely starts in the cartilage. It starts in the fluid the cartilage depends on.

First, what you'll see

The signs come before the name.

Arthritis rarely announces itself. It shows up in the mornings and in the first ten minutes of work: difficulty rising, problems walking, trouble with the stride or the gallop, sometimes trouble just standing comfortably. Those are the visible signs. Underneath them sit the quieter ones: pain, swelling, and inflammation, and quite often real damage to the cartilage that protects the joint.

When to pay attention

One stiff morning after a hard ride is a horse being a horse. A pattern that holds week after week, warm-ups that keep getting longer, reluctance toward work that used to be easy, is a joint asking for help. It's worth acting on early, while the cartilage still has plenty to work with.

Two names, one pattern

The two forms of arthritis.

Rheumatoid arthritis is the autoimmune form: the immune system turns on the body's own tissues, ligaments, and joint structures. It brings serious pain, inflammation, and swelling, and over time it can deform the joints and even erode bone.

Osteoarthritis is the common form: the slow wearing away of the protective cartilage around the joints. Genetics, nutrition, and old injuries all feed it, alongside plain wear and tear. As the cartilage thins, flexibility drops, inflammation rises, and moving starts to cost more than it should.

In our view, cartilage loss is tied hard to the condition of the synovial fluid, the lubrication and cushioning inside every healthy joint. When that fluid declines in quality, content, or viscosity, the cartilage starts taking hits it was never built to take. Old joint damage, over-stressed movement, torn ligaments, and the buildup of toxins and free-radical damage in the soft tissue all pile on from there.

And horses, unlike people, handle pain by instinct: when something hurts, they go still and give it time. A horse that is quietly declining work is often telling you exactly where it hurts.

The good news

Feed the fluid the joints run on.

A healthy body does a remarkable amount of its own inflammation management, and much of that comes down to nutrition. Maintaining the synovial fluid is work the body's own antioxidant enzymes are responsible for, and those enzymes need daily raw material. That's the job of the Nzymes Sprouted Granules: a daily source of live-food nutrition, added to the feed, that helps the body replenish the metabolic resources it uses to keep that fluid healthy, manage inflammation, and clear free-radical damage out of the soft tissue.

Sprouted Granules, 2 lb bag
Add to feed · daily · double the first 2 weeks

Sprouted Granules, 2 lb

600 to 750 lbs3 level tsp
750 to 1,000 lbs4 level tsp
1,001 to 1,250 lbs5 level tsp
1,251 to 1,500 lbs6 level tsp

Add it to the daily feed and watch your own horse, protected by the 120-Day Worry-Free Guarantee. That's up to four months to see what other horse owners have seen, and we suggest using the bag all the way up; it's the quickest way to know.

Louisville Slugger, an APHA paint gelding, saddled and standing in the sun
Louisville Slugger
One horse owner's letter

Ryan Dohrn's five-year-old APHA gelding, Louisville Slugger, was stiff after every workout, short on endurance in the heat, and slow to settle afterward. Thirty days after adding the Granules to his grain, in Ryan's words: “more fluid movement during and after workouts, plus his endurance improved 150%. His recovery time went from an average of 20 minutes down to about 5.” Even the little pasture scrapes that used to take a week to close now “clear up in just days.” His own close: “I have eliminated all other supplements from his diet, as the Granules have given me the best results month to month.” Ryan Dohrn · Appling, GA.

You can't take the miles back out of a joint.
You can keep supplying the repairs.

Questions horse owners ask
Is it arthritis, or just normal stiffness after work?

Stiffness after a hard workout that eases with rest is a horse being a horse. Arthritis shows up as a pattern that holds week after week: warm-ups that keep getting longer, difficulty rising, a shorter stride, reluctance toward work that used to be easy.

What is the difference between rheumatoid arthritis and osteoarthritis?

Rheumatoid arthritis is the autoimmune form: the immune system attacks the body's own tissues, ligaments, and joint structures, bringing pain, inflammation, swelling, and over time deformity of the joints. Osteoarthritis is the common form: the wearing away of the protective cartilage around the joints, fed by genetics, nutrition, old injuries, and plain wear and tear.

How do the Sprouted Granules help arthritic joints?

Healthy joints depend on healthy synovial fluid, the lubrication and cushioning inside the joint, and maintaining that fluid is work the body's own antioxidant enzymes are responsible for. The Granules add a daily source of live-food nutrition that helps the body replenish the metabolic resources it uses to keep that fluid healthy, manage inflammation, and clear free-radical damage from the soft tissue.

How long should I give it to work?

Double the daily amount for the first two weeks, then watch your horse over the following weeks and months. The 120-Day Worry-Free Guarantee gives you up to four months to evaluate; we suggest using the bag all the way up.

Not sure this is what you're seeing?

You don't have to settle for “he's just getting old.” Ask Kara.

Kara is the equine specialist on our customer care team, and she keeps her own herd on a farm in Saskatchewan. Tell her what you're seeing, what you're feeding, and what worries you, and she'll tell you honestly where to start. Read Kara's story →

The consultation is free, and it always will be.

1-877-816-6500 · Orders & quick questions
Kara and Perry out riding on their farm in Saskatchewan
Kara · Equine specialist