• Mayo Clinic Minute: ‘HALT’ before you grab a snack

During a busy day, a healthy snack can calm hunger, provide energy and reduce the chances you'll eat less nutritious foods. But, before reaching for the next snack, ask yourself an important question.

Watch: The Mayo Clinic Minute

Journalists: Broadcast-quality video pkg (1:00) is in the downloads. Read the script.

Do you really need a snack?

"You can even think of the acronym HALT," says Angie Murad, a dietitian for the Mayo Clinic Healthy Living Program. "So am I truly hungry? Am I angry, lonely or tired?"

Murad says if your answer doesn’t start with “H,” skip the snack. She suggests taking a short walk or calling a friend.

"Do some type of alternate activity to get you out of that pattern of impulse eating," she adds.

If you truly are hungry, reach first for fruits and vegetables.

"They are high in fiber," explains Murad. "So they can help you feel satisfied for longer periods of time."

Murad says the same is true of snacks that contain protein – like a hard-boiled egg, low-fat cheeses or hummus.

"Nuts are also a good healthy snack," she adds.

Although, Murad cautions, nuts are higher in calories – an important consideration in snacks.

"If you’re not very active, then you want to consider a snack that’s 200 calories or lower," explains Murad.

Think 100 to 200 calories if you're not moving around a lot. Even if you’re more active, try to keep snacks to less than 300 calories.