Has anyone else had GI problems with Solgars Metafolin? I am certain the problem has to be the small amount of Mannitol that is in the product. I remembered when I ate foods with Mannitol years ago, they gave me massive GI distress (ya know what I'm talking about ) I didn't think that the tiny amount that was in this product could possibly cause a problem, but every time I take it within an hour I start to get "GI Rumblings" and bad things stirring up inside there. I hate to have to switch to Metagenics because it is so much more expensive and the pill hard to divide. I wish they could eliminate the Mannitol from their product. I guess I am ultra sensitive to it. ETA I think Thorne Research also makes a metafolin product but it is in capsules so hard to control the dose.