<<Disclaimer: Verify this information before applying it to your situation.>>

Nature Made makes a complete line of vitamin and mineral supplements
which the containers say are "No artificial flavors - No artificial
colors - No preservatives -- No chemical solvents, yeast, starch or
gluten". (!)

I've used these with no problems.  The company is in Mission Hills, CA,
91346-9606, and they are sold in Safeway's and Albertson's stores, among
others, in the West.  I have no financial interest in their products.

Chuck Bolz
Beaverton, OR