Each month, NFMs secret shopper heads incognito into a natural products store with a question. The employee’s answer—and our expert’s evaluation of the response—is reported here. Our aim: to help you improve your store’s customer service. This month, we focus on immunity and Host Defense, a mushroom-based supplement. How well did the store employee answer our questions? We ask Todd Runestad, supplements swami and editor-in-chief of Functional Ingredients magazine and Engredea.