Anhidrosis—the inability to sweat—is a serious condition in horses, especially in hot climates. Because sweating is a horse’s main way to regulate temperature, non-sweaters are at risk of overheating. Over the years, some horse owners have turned to unconventional remedies—one of the most common being beer.

Where the Beer Idea Came From

The idea of feeding beer to horses with anhidrosis comes from anecdotal reports. Owners noticed that a daily can or bottle of dark beer seemed to help certain horses start sweating again. The belief is that ingredients in beer yeast, hops, or barley may stimulate sweat gland activity or provide B vitamins that support metabolic function.

What Science Says

• There is no formal scientific study proving that beer consistently helps horses with anhidrosis.
• Some horses may respond due to individual differences, while others show no improvement at all.
• The alcohol in beer is minimal, but it is not considered a nutritionally reliable or veterinary-approved treatment.
• Most vets consider beer a harmless experiment in moderation, but not a cure.

Supportive Alternatives

• Electrolyte Supplementation: Balanced electrolytes like Draw It Out® Hydro-Lyte are more consistent in helping horses maintain hydration and mineral balance.
• Environmental Management: Night turnout, fans, misting systems, and shade help reduce heat stress.
• Cooling Therapy: Regular hosing and scraping to aid evaporation.
• Liniment Care: Draw It Out® Gel can support muscle comfort without adding heat stress.
• Veterinary Input: Some vets may suggest specific supplements, acupuncture, or medications that have shown better consistency than beer.

Is Beer Safe?

In small amounts (usually ½ to 1 bottle per day), beer is generally not harmful to horses, though it provides little real nutritional value. Too much can upset digestion due to sugars and fermentation. If you choose to try it, always consult your vet and never rely on it as the sole strategy for managing anhidrosis.

Why It Matters

Anhidrosis is not something to gamble with—it can be dangerous in hot weather. While beer is a popular barn myth that sometimes appears to help, real solutions lie in proper management, hydration, and veterinary guidance. Supportive care with electrolytes and cooling strategies remain the safest, most effective ways to help your horse beat the heat.