Can Horses Eat Kale?

Kale, a nutrient-rich leafy green vegetable, has gained immense popularity in human diets for its numerous health benefits. As a horse owner or enthusiast, you might wonder if kale can be a suitable addition to your equine companion’s diet. In this guide, we will explore the question, “Can horses eat kale?” and delve into the potential benefits and risks associated with feeding kale to horses.

What is Kale?

Kale, scientifically known as Brassica oleracea, is a cruciferous vegetable belonging to the cabbage family. It is packed with essential vitamins, minerals, and antioxidants, making it a superfood for humans.

Can Horses Eat Kale?

Nutritional Value of Kale for Horses

Kale boasts a nutrient-rich profile, including vitamins A, C, K, and various B vitamins. Additionally, it contains essential minerals like calcium, magnesium, and potassium, which are beneficial for overall health.

Potential Benefits of Feeding Kale to Horses

Though kale offers various health benefits to humans, its advantages for horses may not be as significant. While some nutrients may positively impact equine health, it’s essential to consider any drawbacks as well.

Risks and Considerations

1. Oxalates in Kale

Kale contains oxalates, which can hinder the absorption of calcium and contribute to the formation of kidney stones in horses. Consequently, excessive consumption of kale should be avoided.

2. Digestibility and Palatability

Horses may find kale less palatable than other forages, and its tough texture can be challenging to digest properly.

How to Feed Kale to Horses

Introducing Kale to the Diet

If you wish to incorporate kale into your horse’s diet, do so gradually. Start with small portions and monitor your horse’s response to ensure it agrees with their digestive system.

Preparing Kale for Horses

Chopping or steaming kale can improve its digestibility and make it more appealing to horses.

Portion Size

Kale should only constitute a small portion of your horse’s diet. Remember to balance their overall nutritional intake with appropriate hay, grains, and supplements.

Alternatives to Kale

If your horse does not take well to kale or you are concerned about its potential risks, consider other leafy greens such as spinach, romaine lettuce, or beet greens. Always consult with a veterinarian before introducing new foods into your horse’s diet.

Can Horses Eat Kale and Spinach?

Kale for Horses

As discussed earlier, kale contains oxalates that can hinder calcium absorption and may not be highly palatable for horses. While a small amount of kale occasionally may not be harmful, it is not the most ideal leafy green for equine consumption.

Spinach for Horses

Spinach is also not recommended for horses due to its high oxalic acid content, which can lead to potential health issues. It is best to avoid feeding spinach to horses altogether.

What Vegetables Can Horses Not Eat?

Vegetables to Avoid

Several vegetables should be avoided in a horse’s diet due to their potential harmful effects. These include but are not limited to:

  • Potatoes: Uncooked or green potatoes contain toxic solanine, harmful to horses.
  • Onions and Garlic: These contain compounds that can damage red blood cells and lead to anemia.
  • Tomatoes: Green tomatoes and their stems and leaves contain tomatine, which can be toxic.

What Foods Should Not Be Fed to Horses?

Foods to Avoid

In addition to certain vegetables, there are other foods that horses should not be fed:

  • Chocolate: Contains theobromine, which can be toxic to horses.
  • Caffeine: Found in coffee and tea, it can be harmful to equines.
  • Avocado: Contains persin, which is toxic to horses.

What Veggies Can Horses Eat?

Safe Vegetables for Horses

Fortunately, there are several vegetables that are safe and can be included in a horse’s diet in moderation:

  • Carrots: A favorite among many horses and a good source of vitamins and minerals.
  • Celery: A low-calorie treat, but ensure it is cut into small pieces to avoid choking hazards.
  • Cucumbers: Another hydrating option for horses.


In conclusion, while kale does offer some nutritional benefits for horses, it is essential to exercise caution when adding it to their diet. Due to its oxalate content and potential digestibility issues, kale should be given in moderation and only after consulting with a veterinarian. As with any dietary change, the well-being of your horse should be your top priority. Regularly assess your horse’s response to kale and ensure they are receiving a well-balanced diet to maintain optimal health and performance.