ArticleNutrients2023
Dietary Vitamin D Intake in Italian Subjects: Validation of a Frequency Food Questionnaire (FFQ).
Article in Nutrients, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 9 citations in OpenAlex.
- The Association ofDiseases (Basel, Switzerland) · 2025Article
- Vitamin D intake in Italian healthy subjects and patients with different pathological disorders.Frontiers in nutrition · 2025Article
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- Prevalence and risk factors for atypical femoral fracture among Lebanese patients with hip and shaft fractures.JBMR plus · 2024Article
- Article
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8 authors at 3 institutions in 1 country.
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Abstract
Vitamin D plays a crucial role in calcium and phosphate metabolism, relating to bone health and preventing metabolic bone disorders such as rickets and osteomalacia. Vitamin D deficiency (serum 25-OH-D values <20 ng/mL or 50 nmol/L) is common also in Italian people; it is recommended to maintain levels above 30 ng/mL (75 nmol/L) in categories at risk. Supplementation and/or fortification with either ergocalciferol (vitamin D2) or cholecalciferol (vitamin D3) aimed to modify this condition have commonly been proposed. Studies about vitamin D intake are numerous in the literature but not adequately designed and are very often incomplete in Mediterranean Countries such as in the Italian population. On these bases, we performed a survey to validate a frequency food questionnaire (FFQ) specifically created to rapidly assess dietary vitamin D intake in Italian people. For this aim, the data of questionnaires were compared with results derived in the same population from a designed 14-day frequency food diary (FFD). Overall, a good correlation between FFQ and FFD was observed (r = 0.89,
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