Feeding glucose/gluten intolerant horses

Is a Fibregenix balancer supplement safe to feed given that it contains wheat husks and oat hulls?

Remember that Glucose is present and constitutes part of the make up in all feedstuffs! However, the gluten in cereals is all in the grain so oat hulls and wheat husks will have miniscule gluten contents as it is from the hull of these cereals.