Final answer:
Food labels can declare allergens by including the allergen in the ingredient list or by using a 'Contains' statement with the allergen's name after the ingredients.
Step-by-step explanation:
The two ways food labels can declare allergens in accordance to FALCPA (Food Allergen Labeling and Consumer Protection Act) are either by including the name of the allergen within the list of ingredients or by placing the word ‘Contains’ followed by the name of the major food allergen after the ingredient list. For example, if a product contains milk or a milk derivative, it might list ‘whey’ within the ingredients and follow it with the statement 'Contains milk' at the end of the ingredient list. This is designed to make it easier for consumers, especially those with allergies, to identify ingredients that may cause allergic reactions.