Structure/function claims are one of the common claims found on US food labels. They describe how a nutrient or dietary ingredient supports or maintains normal structure or function in the human body. These claims must not mention or imply any disease. A disease claim involves stating that a product can diagnose, cure, mitigate, treat, or prevent a disease. According to 21 CFR 101.93(g), a “disease” is damage to an organ, part, structure, or system of the body such that it does not function properly (e.g., cardiovascular disease), or a state of health leading to such dysfunctioning (e.g., hypertension); except that diseases resulting from essential nutrient deficiencies (e.g., scurvy, pellagra) are not included in this definition.