Final answer:
Manufactured products must clearly identify if they contain any of the "Big Eight" allergens, which are milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans, as per federal law.
Step-by-step explanation:
Federal law requires manufactured products containing allergens from the group commonly referred to as the "Big Eight" to have clear labeling for consumer safety. The "Big Eight" includes milk, eggs, fish, crustacean shellfish, tree nuts, peanuts, wheat, and soybeans. These are identified as major food allergens and companies must disclose this information on food labels to adhere to food safety regulations. This requirement is in line with the Food Allergen Labeling and Consumer Protection Act of 2004 (FALCPA), which aims to improve public health and provide consumers with the information they need to make informed food choices and safely manage food allergies.
Additionally, laws like the Pure Food and Drug Act of 1906 were significant in setting the precedent for such regulations by mandating federal standards and requiring drug makers and food producers to list ingredients, providing important protections and information to consumers.