When trying to lose weight, I’d say most people have a pretty good idea of portion control for main meals. Snacking though is a different matter.
Many of the foods we snack on have the dangerous combination of being small but calorie-dense. 5 walnuts for instance has around the same calories as a serving of pasta. But when you’re grazing on walnuts, how likely are you to stop at 5 (let alone count how many you’re actually having)?
So when snacking, avoid domino foods which allow you to keep going back for “just one more”, and make sure you check the caloric density of your snacks rather than assuming they’re healthier. A good way to do both of these things is favouring singular items like carrots and muesli bars.
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