Can horses eat wild garlic?

Mine love the leaves and flowers (not when they're going to seed and more bitter) and will eat it when hedgerow browsing. They don't have access to massive amounts but seem to enjoy it as much as things like cleavers and cow parsley.

On a slight tangent, I made cheese scones with wild garlic last week and they were lovely (eaten by me and not the horses obvs)!
 
They can and they will eat too much than is good. I think they first noticed the anemia caused by garlic in wild populations before they replicated in tests.
I hasten to add that mine only have access to about 30' of hedgerow (the rest of the field is fenced) which only includes a handful of wild garlic plants so they don't have the opportunity to eat very much. It is the only field I've ever used that has had any wild garlic growing; I thought it mainly preferred damp and shaded/wooded spots so presume it isn't that common on horse grazing?
 
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