If you follow the appropriate criteria, snacking can be a behavior that is completely healthy for you to engage in.
This suggests that you should nibble to the degree that you are able to keep your diet clean and nutrient-dense.
I make it a point to always have a nutritious snack on hand so that I can be sure that I will be able to provide myself with a suitable alternative in the event that I need it.
I carry a huge quantity of carrot and cucumber sticks in addition to a handful of nuts, which are often almonds or cashews. They are typically packed in a handful.