books required proportions
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Source: wikipedia.org
النسب المطلوبة (Info)
النسب التي يحتاجها جسم الإنسان من فيتامين د تقدر بـ 600 وحدة دولية أي حوالي 15 ميكروغراماً، وتزيد سمية فيتامين د عندما تزيد كميته عن 4000 وحدة دولية أي ما يقارب 100 ميكروغرام لهذا يجب الانتباه وتوخي الحذر عند تناوله.
