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Antibodies, explained simply.
Antibodies are proteins made by the immune system to recognize particular targets.
An antibody has regions shaped to recognize a specific target, such as part of a virus or bacterium. That recognition helps the immune system identify what it should respond to.
Antibodies are proteins, but they have a specialized immune job. They also form the basis of many laboratory tests and some regulated medicines, which makes a separate category useful.
Categories can overlap. Each individual entry explains what the subject is, what evidence applies, and what remains uncertain.
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Understand the category, then evaluate the individual subject.
Being a peptide, hormone, vitamin, or protein does not prove that something is effective, safe, approved, or suitable for a person.
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