Many people can get very self conscious about snacking but it is actually a very healthy thing to do. But of course only if you are doing it the healthy way. This does not include chips, cookies, candy but the foods that can help keep you energized between meal times.
In an article found on everydayhealth.com they talk all about the benefits of healthy snacking. Snacks can help many things from maintaining/losing weight to curbing a craving.
The hardest part of snacking is knowing how much is enough and how much is too much. Sure a handful of fruit and nuts sounds like a great snack but if you eat too much it can ruin you appetite later or result in you over eating. It is very important to match your input to output so you should make sure you are only snacking during your most active parts of your day. Like having a bar before the gym or having some cheese while cleaning your house. Unhealthy snacking happens when you are just feeding your body but not doing anything to burn it off.