Vitamin D and mineral metabolism in the hindgut fermenting Pachyderms; 'What can happen if we take elephants, rhinoceroses and tapirs out of their natural environment?' ...

But if you're on a limited diet, adding a few safe vitamin supplements could provide the extra boost you need to stay on ...

Habit and taste preference could also be involved. Salt consumption at the levels used in these studies does not appear to be detrimental to the metabolism of other minerals in the horse.