When a horse runs hot, the cause is often easier to feed than to fight. Tension, spookiness, a short fuse under saddle, and trouble settling to a task can all trace back to how the nervous system and muscles are working day to day. Levelor™ and Magnesium 5000™ by MVP are two magnesium-based calming supplements built around that idea: support the body's normal nerve and muscle function, and a calmer, more focused horse tends to follow.

Magnesium is one of the most important minerals for a level-headed horse. It helps maintain normal muscle and nerve function, supports a healthy heart and immune system, and plays a role in regulating blood sugar. When levels run low, horses can show exactly the behavior owners worry about: nervousness, edginess, muscle tremors, and trouble staying coordinated and focused. Magnesium 5000™ delivers a guaranteed 5,000 mg of magnesium per scoop in a low-carb, low-sugar pellet, so you can top up that mineral without loading the diet with extra sugars. It is built to support muscle function, a healthy nervous system, glucose metabolism, and immune health all at once.

Levelor™ takes the calming idea a step further for horses whose behavior is tied to hormones and cycling as well as nerves. Each scoop blends Raspberry Leaf Powder (5,000 mg), Taurine (2,000 mg), Magnesium (1,750 mg), Dong Quai Root Powder (800 mg), and Chasteberry Extract (100 mg) into a highly palatable meal. Magnesium and taurine support a steady nervous system, while raspberry leaf, dong quai, and chasteberry are traditionally used to support balanced hormonal function. The result is a supplement made to support a quiet disposition in both mares and geldings, with extra help for mares whose focus and stool quality swing with their heat cycle.
Both products are designed to mix easily into your horse's regular feed. For Magnesium 5000™, MVP suggests 1/2 scoop (28.4 g) twice daily for maintenance and 1/2 to 1 full scoop twice daily for working or performance horses. Levelor™ is fed at 1 scoop (20 g) daily for maintenance, with that amount doubled for the first 14 to 21 days to help horses reach a steady level; miniature horses take half a serving. Each supplement is sold in multiple sizes that work out to roughly a dollar a day or less, and both are meant for equine use only. As always, check total magnesium in the full ration before supplementing, and talk with your veterinarian about your individual horse.

Levelor and Magnesium 5000 are made by MVP, the family-owned Med-Vet Pharmaceuticals based in Eden Prairie, Minnesota. MVP has spent more than 40 years focused on equine health and nutrition, and it is a founding member of the National Animal Supplement Council (NASC). That membership is not just a logo on the label: every formula is third-party tested for purity, potency, and label accuracy, so what the guaranteed analysis claims is what ends up in the scoop. MVP's promise to horse owners is simple and confident: give them 60 days, and they aim to give you a better horse.
Magnesium 5000 is a focused, low-carb magnesium pellet that delivers 5,000 mg of magnesium per scoop to support muscle function and a healthy nervous system. Levelor is a broader calming meal that combines magnesium and taurine with raspberry leaf, dong quai, and chasteberry to support both a quiet disposition and balanced hormonal function in mares and geldings.
Both are formulated to support a healthy nervous system and a calmer, more focused horse. Because magnesium plays a direct role in normal nerve and muscle function, topping up a horse that is low can support steadier, more settled behavior at work and at rest.
Yes. Magnesium 5000 can be fed to all classes of horses when magnesium levels in the total ration may be deficient. Levelor is made to support a quiet disposition in both mares and geldings, with added ingredients aimed at mares whose behavior, focus, and stool quality change during their heat cycle.
Each 20 g scoop of Levelor provides Raspberry Leaf Powder (5,000 mg), Taurine (2,000 mg), Magnesium (1,750 mg), Dong Quai Root Powder (800 mg), and Chasteberry Extract (100 mg) in a palatable meal, with inactive ingredients including corn distillers dried grains, ground whole flaxseed, and stabilized rice bran.
Magnesium 5000 guarantees a minimum of 8.82% magnesium, which works out to 5,000 mg per one full scoop (56.7 g). It is low in carbohydrates and sugars, so you can add magnesium without adding excess sugar to the diet.
Results vary by horse. MVP doubles the recommended Levelor dose for the first 14 to 21 days to help horses reach a steady level, and the company stands behind a 60-day promise. Some owners report noticing changes within the first weeks of consistent daily feeding.
Both supplements are made to be highly palatable and mix into regular feed. Levelor comes as a fine meal and Magnesium 5000 as a pellet. Most horses take them readily, though as with any supplement a small number of horses may be slow to accept a new flavor.
Yes. MVP is a founding member of the National Animal Supplement Council, and every formula undergoes third-party testing for purity, potency, and label accuracy, so the guaranteed analysis on the label reflects what is in the product.
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