Answer: Athletes
Explanation: Athletes are people hired by various companies to promote their products or services, the food industry being one of these. It is common to see an athlete making an advertisement for healthy food and then realize that it is someone who does not follow what he preaches, something that can give the wrong message and confuse the population.
The subject of food is a delicate topic. In the case of fast food it is something that happens a lot. Athletes promoting some fast food chain but actually don't even eat from that place or lie about what these ingredients may have. While it is true that it is part of their job and they are paid for it, they must be careful what you promote as it can affect its reputation.