Does Heinz Mustard Have Iodine? What the Ingredients Reveal
                                
                                
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                                    4 min read                                
                            
                                Approximately 70-80% of the body's iodine is stored in the thyroid gland to produce hormones. For those on restricted diets, it's important to know: Does Heinz mustard have iodine? The answer lies in its salt content, which is a crucial detail for managing iodine intake.