<<Disclaimer: Verify this information before applying it to your situation.>> The following products are gf. I called each company. Cook's Pure Premium Quality Vanilla Powder, Fine Bourbon Vanilla, 4.5 oz Bourbon vanilla is the type of vanilla bean that is used. Ingredients: Vanilla bean extractives in a dextrose base (sugar, when I asked the question). Cook Flavoring Company 1/800/735-0545 Nature Made -- Calcium and Magnesium with Zinc Mineral Supplement 100 Premium Tablets. States on the bottle "no chemical solvents, yeast, starch or gluten" so I called 1/800/276-2878. I also checked about the maltodextrin that they use. It is not manufactured using gluten-based grains. Mary in Northern California