Usage Note
Supplementazione is the medical and nutritional term for the practice of adding supplements (vitamins, minerals) to a diet or food product. It is always feminine: la supplementazione di ferro (iron supplementation). The plural supplementazioni is rare; the noun is usually used in the singular as an uncountable concept.
Examples
"Il medico ha consigliato la supplementazione di vitamina D."
Natural Translation
The doctor recommended vitamin D supplementation.
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