The plants growing in your pasture can be a clue to an issue many horse owners are not aware of with the soil.
An abundance of onion grass, buttercups and other plants can be a good indicator of low magnesium soil.
Why do we care?
In both humans and rats low magnesium is a definitive contributor to insulin resistance.
As with most things, equine studies are behind.
It usually proves out that though the required amounts can be vastly different, what happens in mammals of one species happens in mammals of other species.
So, if you fight with fat in your equines, and you have plants that thrive in low magnesium in your pastures, it is probably worth a conversation with your vet or nutritionist.