Ask the Nutritionist: Dr. Getty's Forum for Equine Nutrition
Welcome to my forum.
Here you will find more than 6 years of questions and my answers. It is searchable and offers a great deal of information.
Currently, I am discontinuing new questions. This may change in the future, but in the meantime, please know that It has been a true pleasure serving you.
Take a look at my Nutrition Library and Tips of the Month for a variety of answers on selected topics. Be sure to sign up for my monthly e-newsletter, Forage for Thought.
I also have a growing number of recordings on "Teleseminars on Nutrition Topics that Concern You" as well as the new, Spotlight on Equine Nutrition Series -- printed versions of favorite teleseminars.
And finally, look for my articles in a variety of local publications and online newsletters, as well as the Horse Journal, where I am the Contributing Nutrition Editor.
All the best,
Dr. Getty
Hi Jamie! Nice to hear from you!
Here is an excellent article on HYPP published from UC Davis vet school that thoroughly explains HYPP: http://www.vgl.ucdavis.edu/~lvmillon/hypp/hypp_facts.html
Basically, horses with this genetic disorder have to have diets that are very low in potassium. This can be challenging because hay is typically high in potassium. Fresh grass pasture is best. And, while I generally like to feed alfalfa, I do not recommend it for these horses, even if they are HYPP (H/N) -- heterozygous.
Here's to learning something new every day!
Dr. Getty 
Where are you from? Bayfield, CO