What it does
No sulphur requirement has been established for horses. Intake is usually adequate when protein needs are met, because most dietary sulphur comes from the amino acids cystine and methionine [1].
Deficiency
A sulphur shortfall may contribute to poor hoof quality [1].
See also methionine, crude protein, biotin.
Sources
- 1. Liburt NR (peer reviewed by Boyle AG). Nutritional Requirements of Horses and Other Equids. MSD Veterinary Manual, Professional Version. Merck & Co., Inc., Rahway, NJ. Last full review February 2026. https://www.msdvetmanual.com/management-and-nutrition/nutrition-horses/nutritional-requirements-of-horses (accessed 2026-11-07)
Last edited 7 Nov 2026, 1:48 am