There are many different meanings of dreams with eating contests, but the most common is that it represents a time when you have to go out of your comfort zone and take risks in order to reach your true potential. One way that people often do this is by mentioning their dream while waking up as they start to make changes in their life.
An eating contest can also be about food or dieting; for instance, if you are worried about how healthy the food you eat is, or trying not to gain weight.
In a dream, an eating contest can represent challenges that we set for ourselves and how we survive them to the end. Sometimes, dreams about such contests can be scary too. The idea of winning an eating contest represents the victory of your willpower over your fears and temptations or it can also symbolize overcoming challenges in life.