Page 138 - Raw Diet References Book 2019

6.2.2 Food allergy

Allergy Immune-mediated reaction resulting in foods, insect stings, and medication are the most
one or more of the clinical signs described under 6.4. common causes (Tang 2003, Oswalt et al. 2007, Wang
Adverse reactions to food in cats and dogs. et al. 2007). The term has been variably employed
to denote a defined IgE-mediated antigen-induced
Anaphylaxis Anaphylaxis is an acute life- reaction or as a descriptive term delineating a severe,
threatening multi-system allergic reaction resulting abrupt, untoward event of unstated immunologic
from exposure to an offending agent. In people, significance (Wasserman 1983).

6.2.3 Non-allergic food hypersensitivity

Food idiosyncrasy A non-immune mediated Metabolic reaction Food intolerance. An adverse
reaction to a food component that causes clinical reaction caused by a metabolic defect (e.g. lactose
signs resembling an immune-mediated reaction to intolerance).
food (food allergy).

6.2.4 All individuals susceptible if sufficient quantity eaten

Toxic reaction Reaction to a toxic food component producing a drug-like or pharmacological effect in
(e.g. onions). the host such as methylxanthines in chocolate or
pseudo-allergic reactions caused by high histamine
Microbiological reaction Reaction to a toxin levels in not well-preserved scromboid fish (tuna or
released by contaminating organisms (e.g. salmon).
mycotoxins).
Dietary indiscretion Adverse reaction resulting
Pharmacologic reaction Adverse reaction to a from such behaviour as gluttony, pica or ingestion of
food as result of a naturally derived or added chemical various indigestible materials or garbage.

6.3 Food allergy in humans

Food allergies are the single most common common allergens causing anaphylaxis in people
cause of generalised anaphylaxis seen in hospital are nuts, shellfish, milk, egg white, legumes, certain
emergency departments, accounting for about one fruits, grains, chocolate, and fish (Wasserman 1983).
third of cases seen (twice the number of cases seen
for bee stings) (Sampson 1999). It is estimated that As far as we are aware of, cases of allergies in
about 100 fatal cases of food-induced anaphylaxis humans related to ingestion or contact with pet foods
occur in the US each year (Sampson 1999). The most are not reported in the literature.

6.4 Adverse reactions to food in cats and dogs

The predominant clinical sign in dogs and cats sometimes being restricted to recurrent otitis.
(almost 100% of the cases) is pruritus (itching) Other dermatological changes such as seborrhoea,
(Rosser 1990, White 1986, White 1989, Scott et al. recurrent pyoderma or Malassezia can be seen in
2001). The pruritus can be generalised or localised, allergic dogs (White 1986, Scott et al. 2001). In allergic

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