No, you don’t really miss out on much by eating an egg and smoked salmon.
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And no, your idea is not ideal. Instead of eating a small meal every few days, have a full feasting day where you eat to fullness. Concentrate on meat, fish and eggs to minimize blood glucose increases and therefore insulin response.
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You want to eat a good amount because you don’t want your small meals to force your body to reduce its metabolism, you want to be burning as much bodyfat as possible so you need that metabolism PUMPING!