This is the 3782nd most frequent Catalan word.
antioxidants
Substances that prevent or slow damage caused by free radicals and oxidation.
Here, "antioxidants" is used as a subject noun representing substances beneficial for health.
Els antioxidants protegeixen el cos dels radicals lliures.
Antioxidants protect the body from free radicals.
In this sentence, "antioxidants" describes nutrients present in foods used as the object of the sentence.
És important consumir aliments rics en antioxidants.
It is important to consume foods rich in antioxidants.
Here, "antioxidants" is used to refer to specific compounds involved in research as a topic.