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EMS vs. PPID: What’s the Difference?

Equine metabolic syndrome (EMS) and pituitary pars intermedia dysfunction (PPID) are common, hormone-related horse health conditions. Because they can affect many of the same horses—sometimes even developing concurrently in a single horse—they're easily confused. 

Fortunately, there are a few key differences that can help differentiate EMS from PPID. Here's what to look for!

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