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How Does Diet Link to Equine Metabolic Syndrome (EMS)? Which Products are Suitable?

How Does Diet Link to Equine Metabolic Syndrome (EMS)? Which Products are Suitable?

Equine Metabolic Syndrome (EMS) is a common condition in horses and ponies, closely linked to obesity, insulin resistance, and an increased risk of laminitis. Diet plays a crucial role in both the development and management of EMS. Understanding what to feed—and what to avoid—can make all the difference to your horse’s health.

How Diet Contributes to EMS

  • High Sugar & Starch Intake: Diets rich in sugars (from lush pasture or molassed feeds) and starches (from cereals and some mixes) can lead to weight gain and insulin resistance, both key factors in EMS.
  • Excess Calories: Overfeeding, even with ‘healthy’ feeds, can result in obesity—a major risk factor for EMS.
  • Unrestricted Grazing: Horses and ponies at risk often gain weight quickly on unrestricted pasture, especially in spring and autumn when grass is richest in sugars.

Dietary Management for EMS

  • Low Sugar, Low Starch: Choose feeds and forage that are low in non-structural carbohydrates (NSCs). Avoid cereals, molasses, and rich pastures.
  • Controlled Calories: Offer only as much as your horse needs to maintain a healthy weight. Use a weigh tape and body condition scoring regularly.
  • Soaked Hay: Soaking hay for several hours can reduce its sugar content, making it safer for EMS-prone horses.
  • Forage First: The bulk of the diet should be low-sugar forage, not hard feed.
  • Supplements: Horses on restricted diets may need vitamin/mineral supplements to ensure they still receive essential nutrients.

Suitable Products from Chestnut Mill

At Chestnut Mill, we stock a range of products suitable for horses and ponies with EMS:
If you need tailored advice, our team is always happy to help you choose the best products for your horse’s individual needs.
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