Quick answer

Every horse needs salt daily for hydration and body function. Provide a salt lick and, for working or sweating horses, add measured salt or electrolytes. Always ensure plenty of water is available alongside.

Why salt matters

Sodium and chloride, the components of salt, are vital for hydration, nerve and muscle function and the thirst response. Forage and hard feed are often low in salt, so many horses do not get enough, which can dull appetite and drinking.

Provide a salt lick

The simplest way to meet basic needs is a plain salt lick or loose salt the horse can access freely. Most horses self-regulate, taking what they need. Place it where the horse can reach it easily in the stable and field.

Add salt for work and heat

A working, sweating horse loses a lot of salt in sweat, more than a lick alone may replace. Adding a measured amount of plain salt to feed, or using electrolytes for hard work and hot weather, keeps levels topped up. Always provide water alongside.

Support the whole diet

Salt works as part of a balanced diet. Alongside good forage, clean water and appropriate supplements, adequate salt helps a horse stay hydrated, keeps the appetite healthy, and supports performance and recovery.

Do not overdo it

Free-choice salt is self-limiting, but do not force large amounts of added salt without water, which can worsen dehydration. Provide salt sensibly, always with water available, and let a working horse’s needs guide how much extra to add.