<unk>  is any adverse effect that occurs when a usual amount of<unk>  is ingested. People with<unk>  intolerance are unable to consume a normal amount of<unk>  without adverse effects.<unk>  differs from salicylism, which occurs when an individual takes an overdose of<unk> s.<unk>  overdose can occur in people without<unk> , and can be deadly if untreated. For more information, see aspirin poisoning.<unk> s are derivatives of salicylic acid that occur naturally in plants and serve as a natural immune hormone and preservative, protecting the plants against diseases, insects, fungi, and harmful bacteria.<unk> s can also be found in many medications, perfumes and preservatives. Both natural and synthetic<unk> s can cause health problems in anyone when consumed in large doses. But for those who are<unk>  intolerant, even small doses of<unk>  can cause adverse reactions.
Salicylate sensitivity
Cold sensitivity
Cue reactivity
Resistant starch
Oat sensitivity
Parafunctional activity
Thermostability
Lewis antigen system