MSM gives your horse power and the right conditions to work out and perform better.
MSM – Methylsulfonylmethane, is a natural sulfuric substance. Organic sulphur is an important building block in the body’s production of amino acids, proteins, enzymes, hormones and immunoglobulin. Organic sulphur is something found in every cell in our bodies. The fact is that it is the eighth most commonly used substance, weighted and it is an important component of the collagen and keratin protein that builds up cartilage, tendons, brain, connective tissue, muscles, skeletons, coats and hoofs. Organic sulphur is, in other words, one of the most important components for a healthy and well functioning body. If the body does not have access to sulphur to the extent it needs, some symptoms may show. By supplementing the diet with MSM, you fill up the horse’s sulphur supply and you get a cleaner and a horse with better wellbeing.
MSM is a naturally occurring substance in nature. It is found in milk and grass. Unfortunately, it is destroyed by drying and heating. It is expected that a horse who grazes on a green grass will receive about one gram of MSM per day. If the horse gets silage or hay silage, it does not get much MSM. When the horse is supplemented by MSM, the body can repair itself and stay healthy. The horse also has an improved circulation and oxygen absorption capacity. This in turn leads to a significant shift in the lactic acid threshold.
The horse recovers faster after exercise, becomes more alert and usually has a better appetite. The horse also gains stronger hoofs and a more beautiful coat because the sulphur in MSM helps the body to build up the proteins, collagen and keratin that are needed as building blocks in those processes.
Since MSM actually has the ability to penetrate the top layer of skin, you can mix MSM into an ointment and apply it to the coat.
Study shows that horses who consumes  MSM get more and feels better.
In a study by the well-known veterinarian Ronald D. Riegel, it is noted that the group of horses who received 20 grams of MSM daily in the diet, all lowered their training hours by an average of 2.6 seconds. The horses become more exercise-oriented and recover faster after training. The horses raise their lactic acid threshold significantly, resulting in a completely different stamina on the course. Attributes like these have led to the fact that many of the large stables in trotting and racing sports are looking into the subject and noticing with good results so give their horses MSM as a supplement feed.
Read the entire study here:  Racehorse Study.pdf

Dosage instructions for horses.
Do not see the dosage instructions as something you must follow blindly. You can very well experiment yourself. The higher the dose, the faster the results are usually obtained. MSM is one of nature’s most non-toxic substances and it has been found that it is as non-toxic as water. You have to get up to doses of several pounds a day before a horse should start to feel ill effects of the dose. In the first ten days you give the horse 40 grams per day, then 20 grams a day. A smaller pony needs a slightly smaller dose. Calculate approximately 30 grams during the first ten days, then 15 grams a day.
MSM is a very well documented subject. MSM has been studied carefully for about twenty years. It is a substance that is present in the diet and in the body, as both humans and animals feel good to receive as a dietary supplement.
MSM for dogs and cats, Dogs often encounter problems with the movement apparatus. By supplementing biologically useful sulfur in the form of MSM, the dogs’ bodies can more than ever perform maintenance and repair of the body. Old decrepit dogs that exhibit clear signs of wear and tear become short-lived and more mobile.Dosage: A dog or cat weighing less than ten kilograms is recommended to take 250-1000 mg MSM per day. If the animal weighs between ten to twenty kilograms, then 1000-2000 mg of MSM is recommended per day. An animal weighing twenty to thirty kilograms should have 2000-3000 mg. If the animal weighs thirty to forty kilograms, then 3000-4000 mg of MSM is recommended per day. An animal weighing more than forty kilos should have 4000-5000 mg MSM per day. 1000 mg corresponds to one gram which corresponds to a spice(salt spoon) size approximately.MSM, natural nutrition not medicine.Remember, Alavis  MSM is just a feed supplement and not a medicine. MSM does not affect other medication, there are no known complications