If you are eating with other people represents harmony and merriness in your life.
On the opposite, if you are eating alone in your dream, symbolise signifies loss and depression. You may feel rejected or cut off from your family and friends. Also consider the phrase, "what's eating you up?" in reference to anxiety that you may be feeling.
If you are refusing to eat, then it indicates that you want to be more independent and not rely on others so much.
If you dream that you are a picky eater, then it indicates that you are holding back something. If you are currently dieting in your life, then the dream may serve to compensate for your food cravings.
If you dream that someone takes away meals before you finish them, foretells that you will have problems and issues from people dependent from you.