Each trip to Yogurt Zone is an exercise in deliberation. The bank of frozen-yogurt dispensers dares guests not to second-guess their choice, pouring an array of kosher low-fat and nonfat flavors as well as nondairy and no-sugar-added options, such as mango, pink lemonade, and watermelon sorbet. Each yogurt option teems with live, active cultures that are believed to deliver many health benefits, such as clearer skin and improved digestion of swallowed car keys. Even after visitors settle on flavor combinations, the toppings bar continues to test decision-making skills with both dry and fresh edible accoutrements, such as fresh fruit, nuts, chocolate, candies, and cereals.