we don't know yet, but i suspect that in another ten or twenty years we will. what i mean by that is there are addictive substances added to our (processed) food. one famous example is the flaming hot cheetos. there's been some investigation into this nefarious shit, but i'm not up to speed on it so if anything's turned up, i'm ignorant. but evidently they're not just 'addictive' on their own merits; the shit is literally addictive. no reason to think it's not also being added to various other items.
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