Consumption of a calcium and vitamin D-fortified food product does not affect iron status during initial military training: a randomised, double-blind, placebo-controlled trial.
Br J Nutr
; 115(4): 637-43, 2016 Feb 28.
Article
em En
| MEDLINE
| ID: mdl-26625709
Ca/vitamin D supplementation maintains bone health and decreases stress fracture risk during initial military training (IMT); however, there is evidence that Ca may negatively affect the absorption of other critical micronutrients, particularly Fe. The objective of this randomised, double-blind, placebo-controlled trial was to determine whether providing 2000 mg/d Ca and 25 µg/d vitamin D in a fortified food product during 9 weeks of military training affects Fe status in young adults. Male (n 98) and female (n 54) volunteers enrolled in US Army basic combat training (BCT) were randomised to receive a snack bar with Ca/vitamin D (n 75) or placebo (snack bar without Ca/vitamin D; n 77) and were instructed to consume 2 snack bars/d between meals throughout the training course. Circulating ionised Ca was higher (P0·05) in markers of Fe status between placebo and Ca/vitamin D groups. Collectively, these data indicate that Ca/vitamin D supplementation through the use of a fortified food product consumed between meals does not affect Fe status during IMT.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Vitamina D
/
Cálcio da Dieta
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Alimentos Fortificados
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Anemia Ferropriva
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Ferro da Dieta
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Lanches
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Condicionamento Físico Humano
Tipo de estudo:
Clinical_trials
/
Etiology_studies
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Risk_factors_studies
Limite:
Adolescent
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Adult
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Female
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Humans
/
Male
País como assunto:
America do norte
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article