<<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