It’s easy to class something as unhealthy simply out of measure.
A Big Mac has 65% of your daily sodium intake, so eating a Big Mac every day would force you to not have much more salt from all the other food you eat, or cut out the Big Mac to re-balance your intake.
Of course, most people eating a Bic Mac a day aren’t too concerned about the other things they’re eating, so it’s simple to class the Big Mac as unhealthy
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