Is water softener block salt okay for horses. I bought some and it contains brine, and they told me it was okay. – CM, Illinois
Dear CM,
This was an interesting question that, quite truthfully, I had never thought about and couldn’t answer without some research. In general, you have to be very careful about any kind of “block” that you offer to horses, as they may contain other ingredients that can be harmful to horses. For example, horses are very susceptible to a common ingredient in livestock blocks called monensin, or Rumensin. It’s a growth-promoting agent in cattle that works in the rumen (which horses don’t have) and so is toxic to them. There are also really high protein livestock blocks, deer licks, and sweetened or flavored horse blocks, all of which I recommend you avoid.
To get back to water softener blocks, here’s what the Cargill website said:
“As with food considerations, water softening salts are not intended for human or animal feeding. The particle size is inappropriate for small animals. In addition, water softening salt may have additives that are inappropriate for animal feed.”
One of these additives is sodium hexametaphosphate, a surfactant, not something you want your horse eating. In addition, there are at least three different kinds of salt that can be used to soften water. One of them, rock salt, is only 95% sodium chloride. The remaining 5% is made up of “insoluble matter,” whatever that is. Finally, some water softeners are made of with potassium, not sodium, which could be deadly to a horse with HYPP (hyperkalemic periodic paralysis).
For these reasons, I recommend you stick with salt and trace mineralized salt that is specifically designed for use in horses and stay away from water softener salt, deicing salt, and blocks for other species. In fact, you may want to stay away from blocks altogether. Research has shown that horses may not be able to get all the salt and other minerals they need from a block–especially if they are sweating a lot from hard work or high temperatures–because blocks were made for the rougher tongues of cattle. I suggest you give your horse a smoother block specifically made for horses or provide loose salt.
Lydia Gray, DVM MA, is the Staff Veterinarian for SmartPak. Prior to joining SmartPak, Dr. Gray served as the first-ever Director of Owner Education for the American Association of Equine Practitioners. She has authored numerous articles in publications such as The Horse, Horse Illustrated, Western Horseman and a variety of veterinary journals and magazines. Dr. Gray is also a frequent speaker at horse expos, veterinary conventions and other events. After graduating with honors from the University of Illinois College of Veterinary Medicine and receiving her Master's Degree in Interpersonal and Organizational Communication, she practiced at the Tremont Veterinary Clinic for several years. Dr. Gray is active in the American Veterinary Medical Association and Illinois State Veterinary Medical Association. She enjoys training and showing her Trakehner, Newman, in both combined driving and dressage, and is a USDF “L” Program Graduate (with distinction). Find Dr. Gray on Google+
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What about using salt that is used in curing meats? The local farm store tells me it is safe for horses since humans safely consume the salt via the salted meats. Ingredients label states: salt, yellow prussiate of soda.
Thank you.
Hi Gabby, thanks for your question! Similar to the water softener salt question, we would recommend you chose a salt source that is specifically designed to be fed to horses. Because it’s challenging to know what other ingredients might be present in a salt designed for a different purpose, the best bet is to just go with what we know was meant for equine consumption. Some of our favorites are SmartLytes Pellets for daily use, and Himalayan Salt Licks for hanging in stalls or paddocks.
SmartLytes Pellets: http://www.smartpakequine.com/smartlytes-pellets-9585p.aspx
Himalayan Salt Licks: http://www.smartpakequine.com/himalayan-salt-licks-4870p.aspx
How about if you use water softener in the water supply for your horse can that have any negative effect on your horse?
Thanks!
Hi Sheila, thanks for your question. Water is usually softened by adding a form of sodium which neutralizes other minerals such as calcium and magnesium. We will often do this to help protect things like pipes and machinery from hard water build-up. The result is water that may have a slightly higher percentage of sodium, and a slightly lower percentage of other minerals compared to water that has not been softened. We have heard of horses that drink from softened water sources, and seem to do just fine. – SmartPaker Casey
I’m with Sheila, is it safe for them to drink softened water? We have misters for the extreme heat here in AZ & are planning to add a water softener to prevent their clogging so much, but that also comes from the same water supply that the horses drink…
Hi Beth, thanks for your question. Water is usually softened by adding a form of sodium which neutralizes other minerals such as calcium and magnesium. We will often do this to help protect things like pipes and machinery from hard water build-up. The result is water that may have a slightly higher percentage of sodium, and a slightly lower percentage of other minerals compared to water that has not been softened. We have heard of horses that drink from softened water sources, and seem to do just fine. – SmartPaker Casey
Thank you for this vey informative article. I clearly understand to only give my horse salt blocks designed for horses. My question is if your well water is hard– hard to the point the water is leaving a rust colored tint to your laundry– is this hard water safe for the horses to consume? Currently we do not live with that type of water conditions, but years ago we did. We brought in bottled water for the humans, We didn’t have horses at the time, but it was a quality care question I pontificated,
Interesting question, Dona! Our best recommendation would be to work with your horse’s veterinarian to determine what is best for the horses in this type of situation. A local vet will have a better understanding of the mineral content of both the water, hay and grass in your specific geographic area, enabling them to give you a complete and nutritionally sound recommendation for your horses. – SmartPaker Sarah
It would be safe for them to drink softened water if the water was softened using a salt free water softener.
as a water softener dealer, dealing with salt for water softeners etc. daily…. I would say that it is not necessarily “harmful” for horses. If you think about it, the salt in a water softener replaces the harmful ions in water with salt, which then is in the water supply anyway.
I remember a friend coming to me with a similar question about using water softener in Barrington IL with some of his livestock. The surfactant was plenty enough to convince him it was a bad idea.