Final answer:
Allergic reactions can occur even with a single exposure to an allergen.
Step-by-step explanation:
The statement that you have to consume the product more than once to have an allergic reaction is False. Allergic reactions can occur even with a single exposure to an allergen. When a susceptible individual is first exposed to an allergen, it activates a strong immune response that involves the production of IgE antibodies. These antibodies bind to specific receptors on mast cells, which are then primed for subsequent exposure to the allergen.