You could do this...although from everything I have read eating 6 times a day helps you to burn off more calories, as just the process of digesting food burns calories......also helps to keep hunger at bay so people are less likely to snack on unhealthy as there is not as much time to wait between eating........
But all that said, a work colleague of mine is super slim, size 8 and never, ever snacks...only eats 3 meals a day and therefore it must work???
Mel x