many companies have started to use their packaging for food as a marketing tool. words such as “healthy”, “low-fat”, and “natural” have contributed to what is called the health-halo effect, which is when consumers overestimate the healthfulness of an item based on claims on the packaging. food companies may incorporate whole grain and higher fiber levels into their products in order to advertise these advantages. however, there is no regulated amount of grain needed in a certain product to be able to advertise this benefit, and the product may not be as nutritious as advertised.