Which of the following statements is NOT true about fast food?

参考解析：

细节理解题。根据文章第四段第三句“the reason fast food tastes so good is often because it’s loaded with fat and sodium”可知，快餐中富含脂肪和钠，因此A项错误；根据文章最后一段第二句“children are also a major marketing demographic with toys and special meals aimed just for them”可知，儿童也是主要的营销人群，因此B项正确；根据文章最后一段第一句“Fast food restaurants spend a large amount of money on marketing their meals to consumers, and it seems to be effective”可知，餐店花了大量的钱向消费者推销他们的饭菜，这似乎是有效的，因此C项正确；根据文章第四段最后一句“due to the outcry from customers who are increasingly health-conscious, changes in the way some items are prepared are being made which may or may not affect their taste”可知，由于越来越注重健康的顾客的强烈抗议，一些食物的制作方式正在改变，这可能会也可能不会影响他们的口味，因此D项正确。故选A。