Has anyone out there that is gluten-intolerant tried the Bolthouse Farms Green Goodness drink? I LOVE their other beverages but have never tried this one because it says it is made with all sorts of evils..wheat grass, barley, etc. Yet, it is labeled gluten-free. I emailed them and asked how this is possible, and they responded that their suppliers harvest the grains before the gluten develops in them. Is this possible? I could swear I learned in horticulture and botany classes...