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10 Best Magnesium Supplement For Horses 2025 in the United States

From leading brands and best sellers available on the web.
#1

Winner

100-Day Su

Equinety

100-Day Supply Horse XL Horse Supplements – Horse Care W/ 8 Essential Amino Acids to Promote Cellular Repair - No Soy or Sugar Coat Defense for Horses - Horse Joint Supplement & Horse Hoof Supplements

#2
Nutramax C

Nutramax Laboratories

Nutramax Cosequin Optimized with MSM Joint Health Supplement for Horses - Powder with Glucosamine and Chondroitin, 1400 Grams

#3
Formula 70

Formula 707

Formula 707 Calming Equine Supplement 5LB Bucket – Anxiety Relief and Enhanced Focus for Horses – L-Tryptophan, Thiamine & Magnesium

#4
Nutramax C

Cosequin

Nutramax Cosequin ASU Joint Health Supplement for Horses - Powder with Glucosamine, Chondroitin, ASU, and MSM, 500 Grams

#5
Formula 70

Formula 707

Formula 707 Calming Equine Supplement, Daily Fresh Packs – Anxiety Relief and Enhanced Focus for Horses – L-Tryptophan, Thiamine & Magnesium

#6
Farnam Hor

Horse Health

Farnam Horse Health Vita E & Selenium Crumbles Horse Vitamin Supplement, Supports optimal muscle health & antioxidant support, 3 lbs., 96 day supply

#7
Farnam Qui

Farnam

Farnam Quietex II Horse Calming Supplement Pellets, Helps Manage Nervous Behavior And Keep Horses Calm & Composed In Stressful Situations, 1.625 Lbs, 26 Day Supply

#8
Magnesium

MVP

Magnesium 5,000 (40lb) Calming/Metabolism/Muscle Function Support for Horses

#9
MagnaGard

MagnaGard

MagnaGard Gastric Support Supplement for Horses | Relieves Ulcers, Calming Supplement, Magnesium & Other Vital Minerals | Powder, 6 Pound Bag, 45-Day Supply | by Eagle Equine

#10
Horse Guar

Horse Guard

Horse Guard 10 lb, Equine Vitamin Mineral Supplement with Organic Selenium & Vitamin E

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