I don't think that skipping a meal is a bad habit because (IF) or fasting is one way to detox or cleanse.
I am not very familiar with detoxing or fasting but I think just skipping one meal doesn't really count. A friend of mine does it for a hole week, where is only drinking tea and eating a very light soup, no solid food. He told me that the body needs atleast 72 hours to start getting everything out of the body.