Chestnut Leaves

Chestnut leaves, typically from the sweet chestnut (Castanea sativa) tree, are occasionally used in herbal or forage-based equine supplements. They contain bioactive compounds such as tannins, flavonoids, and phenolic acids.

In equine nutrition, chestnut leaves may be included for their astringent properties or as part of botanical blends aimed at supporting respiratory or gastrointestinal function. The tannin content may help modulate gut flora or reduce irritation, though scientific data in horses is limited.

Due to their tannin levels, chestnut leaves should be fed in moderation. Excessive intake may interfere with protein or mineral absorption, as tannins can bind nutrients and reduce their availability.