here_i_am
Well-Known Member
I had my grazing analysed (horses live out 24/7) & it is very deficient in magnesium (it's generally crap overall!). So i feed various balanced minerals. My sister accidently overdosed one of the ponies on the mag ox - until i realised, i honestly thought somebody had been in & sedated her! The vet said it was fine though - mag ox is a 'safe' mineral to overdose & the body just excretes the excess (sloppy poo & wee).