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EZium ... the ONLY Magnesium Glycinate For Horses! — Health (The pelleted magnesium glycinate built for horses that are too tense to relax…)

EZium ... the ONLY Magnesium Glycinate For Horses!

The pelleted magnesium glycinate built for horses that are too tense to relax and focus.

Got a talented horse who's just too tight, too reactive, or too sensitive to perform at their best?

Reviewed by Ann Pruitt, InfoHorse.com · Updated May 2026
Bay dressage horse working calmly on the bit under a rider in a competition arena
Bay dressage horse working calmly on the bit under a rider in a competition arena

You know the horse. Talented, athletic, bred for the job — but somehow always wound a little too tight. Too reactive. Too sensitive. The kind of horse that spooks at the broom that tipped over, braces against your leg, or hits a hair-trigger the moment something changes in the ring. That exact frustration is what created EZium. It is a pelleted chelated magnesium supplement built for the horse that simply cannot settle enough to reach its potential — the only magnesium glycinate made specifically for horses.

EZium chelated magnesium supplement reclosable pail with feed scoop and pelleted supplement
EZium chelated magnesium supplement reclosable pail with feed scoop and pelleted supplement
What is EZium, and what does it actually do?

EZium is an easy-to-feed pelleted supplement whose active ingredient is magnesium glycinate, a chelated form of magnesium. Magnesium is involved in more than 300 biological processes in the body, including muscle relaxation, nerve signaling, energy production, and inflammation regulation. When a horse runs short on it, the nervous system pays the price first: the flight-or-fight response becomes too easy to trigger, and the nerve and muscle cells are essentially primed to fire now — irritable, jumpy, reactive.

EZium is deliberately not marketed as a calming supplement, and that distinction matters. Hyperexcitability and hypersensitivity are often symptoms of a magnesium deficiency, not a behavior problem to be sedated away. EZium supports normal nerve and muscle function so the horse can do its own settling — without dulling the athlete you actually want under you.

Why magnesium glycinate instead of an ordinary magnesium supplement?

Magnesium glycinate is an amino acid chelate — magnesium chemically bound to the amino acid glycine. That bond is the whole point. The chelated molecule stays intact through digestion instead of competing with other nutrients for uptake, and it is absorbed over four times better than most other forms of magnesium. Even on excellent forage and quality concentrates, many horses still do not take in all the magnesium they need; the form you feed determines how much of it actually crosses into the horse. EZium is formulated so more of every scoop reaches the horse rather than passing through.

Chestnut horses and a foal grazing forage in a green summer pasture
Chestnut horses and a foal grazing forage in a green summer pasture

The deficiency cycle is self-feeding. Stress triggers a release of adrenaline, adrenaline pulls magnesium from the body's stores, and the depleted horse responds to the next stressor even harder — tighter, spookier, more reactive than before. Replenishing magnesium with a highly absorbable form is what helps break that loop.

"An equine nutritionist first told me about EZium Metabolic. The change in my spooky and resistant horse was nearly immediate. I noticed a difference within 4 days and within 2 weeks the horse came off his calming supplement. I now recommend this product regularly to my students and I have seen results each and every time. This product meets horses where their needs are." Michelle L., Verona, NY

How do you feed EZium?

Feeding is simple: start with the recommended daily serving of one scoop twice a day. That same dose is appropriate for miniature horses, ponies, mules, and donkeys, and it can be increased on any EZium product as needed based on the horse's symptoms and response. For a picky eater, introduce it gradually mixed into a favorite feed, wet the entire ration, or soak it with beet pulp or a mash. Most owners report seeing a change within two to three weeks — many in as few as four days. In a customer survey, 71% reported their horses were less nervous, excitable, or jumpy, 57% saw increased tolerance to work, 49% experienced reduced spooking, and 46% reported greater freedom and range of motion.

Tractor cutting and windrowing fresh forage in a green hay field
Tractor cutting and windrowing fresh forage in a green hay field
Where did EZium come from? Dr. Teena Middleton's story

EZium was created by Dr. Teena Middleton out of a problem with her own horse, Music OF MY Heart. The mare was talented but consistently too tight, too reactive, and too sensitive — gifted, yet unable to settle into the work. After Dr. Middleton discovered how effective chelated magnesium could be, she went looking for an affordable chelated magnesium that was easy to feed and could not find one, so she developed EZium as a pellet for her own barn. When friends saw the change in Music and started asking for it for their own horses, the personal project became a business. As she puts it: “If it worked for ‘Music,’ I know it will work for you.” Today EZium comes in three formulations — the original, EZium Metabolic for insulin-resistant and metabolic horses, and EZium+ Enteric for ulcer-prone, high-stress horses.

What kind of results are real horse owners reporting?

Owners across disciplines — dressage, reining, barrel racing, hunters, eventing — describe the same arc: a horse that was spooky, girthy, resistant, or anxious becoming more focused, more willing, and more rideable, often within a couple of weeks. Trainers report longer attention spans at home and easier preparation at shows; owners of ulcer-prone and metabolic horses note that EZium became a permanent part of the program. The recurring theme is not sedation but a horse that can finally work through its worry instead of blowing up over it.

Before and after photos of a mare showing improved condition and a healthier topline on EZium
Before and after photos of a mare showing improved condition and a healthier topline on EZium
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The Solution Section (FAQ)
Are EZium products show-safe?

Yes. All EZium products are safe to use while showing all classes of horses. They contain no prohibited substances and are safe under all major equine competition regulations.

What dose should I start with?

Begin with the recommended daily serving of one scoop twice a day. This dose is also appropriate for miniature horses, ponies, mules, and donkeys, and you can increase the dose of any EZium product as needed based on your horse's symptoms and response.

How quickly will I see a difference?

Most owners report results within two to three weeks, and many see a change in as few as four days. In a customer survey, 71% reported their horses were less nervous, excitable, or jumpy, and 49% saw reduced spooking.

Is EZium a calming supplement?

No. EZium is not a calming or sedating supplement. Hyperexcitability and hypersensitivity are frequently symptoms of a magnesium deficiency, and EZium supports normal nerve and muscle function so the horse can settle on its own without being dulled.

Why magnesium glycinate rather than another form of magnesium?

Magnesium glycinate is an amino acid chelate — magnesium bound to the amino acid glycine. It stays intact during digestion instead of competing with other nutrients and is absorbed over four times better than most other forms of magnesium, so more of each scoop actually reaches the horse.

Can I give my horse too much magnesium?

It's very difficult through normal feeding. Horses regulate magnesium effectively; excess is typically not absorbed and may simply cause loose stool, which resolves once intake is adjusted.

Can magnesium cause ulcers, and is EZium safe for metabolic horses?

No, magnesium does not increase stomach acid and is in fact often used in antacids. EZium contains less than 6% non-structural carbohydrates, and the EZium Metabolic formulation is made specifically for insulin-resistant and metabolic horses.

Does EZium expire, and how should I store it?

EZium products do not expire as long as they are stored properly. Keep your EZium in a sealed bag or container in a cool, dry place.

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Ann Pruitt
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