<unk>  is a detrimental reaction, often delayed, to a food, beverage, food additive, or compound found in foods that produces symptoms in one or more body organs and systems, but generally refers to reactions other than food allergy. Food hypersensitivity is used to refer broadly to both<unk> s and food allergies. Food allergies are immune reactions, typically an IgE reaction caused by the release of histamine but also encompassing non-IgE immune responses. This mechanism causes allergies to typically give immediate reaction (a few minutes to a few hours) to foods.<unk> s can be classified according to their mechanism.<unk>  can result from the absence of specific chemicals or enzymes needed to digest a food substance, as in hereditary fructose<unk> . It may be a result of an abnormality in the body's ability to absorb nutrients, as occurs in fructose malabsorption.<unk>  reactions can occur to naturally occurring chemicals in foods, as in salicylate sensitivity. Drugs sourced from plants, such as aspirin, can also cause these kinds of reactions.
Food intolerance
Food allergy
Dysphagia
Allergy
Aphagia
Allergies in children
Steatorrhea
Food addiction