Food poisoning

illness caused by eating food contaminated with pathogenic or toxic substances (characterized by vomiting and diarrhea)

A foodborne illness (also foodborne disease) is any illness resulting from the consumption of food. Although foodborne illness is commonly called food poisoning, this is often a misnomer. True food poisoning occurs when a person ingests a contaminating chemical or a natural toxin, while most cases of foodborne illness are actually food infection caused by a variety of foodborne pathogenic bacteria, viruses, prions or parasites. Such contamination usually arises from improper handling, preparation, or food storage. Good hygiene practices before, during, and after food preparation can reduce the chances of contracting an illness. The action of monitoring food to ensure that it will not cause foodborne illness is known as food safety. Foodborne disease can also be caused by a large variety of toxins that affect the environment. For foodborne illness caused by chemicals, see Food contaminants.
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Food poisoning is a general term for health problems arising from eating contaminated food. [more]Food poisoning - Community and Resources

Noun
1. illness caused by poisonous or contaminated food
(synonym) gastrointestinal disorder
(hypernym) illness, unwellness, malady, sickness
(hyponym) botulism

One possible cause of symptoms like those of food allergy is food contaminated with microbes, such as bacteria, and bacterial products, such as toxins. Contaminated meat and dairy products sometimes cause symptoms, including GI discomfort, that resemble a food allergy when it is really a type of food poisoning.