<<Disclaimer: Verify this information before applying it to your situation.>> I just discovered in my neighborhood LONGS Drugstore the Nature Made line of vitamins, which specifies--based on the 5 or 6 different products I glanced at--whether or not the product is gluten free. The bottle in front of me is labeled Niacin 100 mg, and also states "No artificial colors, no articial flavors, no preservatives; no chemical solvents, yeast, starch or gluten." The company address is Nature Made Nutritional Products, Mission Hills, California, 91346-9606. Phone 1-800-276-2878 M-F 7 am-4 pm PT in U.S. This is all I know. HERB BOLZ :) * Davis, California, USA (personal views only) * (between Sacramento and San Francisco) [log in to unmask] * ---city of bikes---