People with celiac problems or gluten sensitivity cannot consume gluten-containing products. However, because this is a growing problem, several oyster sauce companies have their goods verified as gluten-free for these individuals. Even if a product's label does not state "gluten-free," it might be one. If a product does not include malt, malt flavor, malt extract, malt vinegar, brewer's yeast, wheat, barley, rye, durum, and wheat protein, someone with celiac disease or gluten intolerance can consume it.