My Horse Is Off His Feed — Should I Worry?

It can be worrying when a horse that normally eats well suddenly becomes reluctant to finish meals or loses interest in food altogether. While a short-term change in appetite may not always be serious, persistent or unexplained loss of appetite should never be ignored.

Understanding the possible causes can help you decide when to monitor at home and when to call your vet.

What Does “Off His Feed” Mean?

A horse that is “off his feed” may:

• Leave hard feed unfinished

• Eat more slowly than usual

• Pick at hay or forage

• Refuse certain feeds

• Show reduced interest in food overall

Even subtle changes can be significant, especially if they persist.

Common Causes of Reduced Appetite

1. Dental Problems

Dental pain can make chewing uncomfortable, leading to:

• Dropping feed (quidding)

• Avoidance of hard feed

• Weight loss despite apparent appetite

Regular dental checks are essential for maintaining good appetite and condition.

2. Gastric Ulcers

Equine Gastric Ulcer Syndrome (EGUS) is a common cause of reduced appetite.

Other signs may include:

• Weight loss

• Girthiness

• Behaviour changes

• Poor performance

Ulcers can cause intermittent appetite changes, particularly around feeding times.

3. Pain or Illness

Pain elsewhere in the body can reduce appetite.

Possible causes include:

• Lameness or back pain

• Colic or digestive discomfort

• Infection or underlying illness

Horses may show few obvious signs beyond reduced interest in food.

4. Stress or Management Changes

Changes in routine can affect appetite, such as:

• New turnout arrangements

• Travel or competition

• Changes in herd dynamics

• Altered feeding routines

Stress can suppress appetite and impact digestive health.

5. Feed or Environment Changes

Horses can be sensitive to:

• New feeds or forage

• Poor-quality hay

• Dirty or unfamiliar feed buckets

• Weather changes

Always introduce new feeds gradually and ensure fresh water is available.

When Should You Worry?

You should contact your vet if:

• Your horse refuses feed for more than 24 hours

• Appetite changes persist for several days

• Weight loss becomes noticeable

• Behaviour or performance changes accompany appetite loss

• There are signs of colic or discomfort

Early investigation can prevent more serious issues.

What Will Your Vet Check?

A veterinary assessment may include:

• Physical examination

• Dental examination

• Blood tests

• Gastroscopy if ulcers are suspected

• Review of management and feeding routines

Identifying the cause allows targeted and effective treatment.

In Summary

A horse going off his feed is often an early sign that something isn’t quite right. While mild, short-term changes may resolve, ongoing appetite loss should always be investigated.

If you are concerned about your horse’s appetite or have noticed other changes, please contact the practice for advice or an examination.