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Height, weight, waist and hip circumference (baseline and end)
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ISAK anthropometry protocol, electronic scales, stadiometer, Lufkin tape
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Questionnaires
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Face to face interview (baseline)
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Demographics, medical history, supplement use
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Physical activity (baseline and end)
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New Zealand Physical Activity Questionnaire Short Form (NZPAQ-SF) [26]
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Dietary intake (baseline and end)
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FFQ (iron containing foods, foods known to affect iron absorption)
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Blood loss (baseline and end)
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Adapted blood loss questionnaire [28]
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Evaluation (end)
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9 point hedonic scales to determine overall acceptability, appearance, flavour and texture [30]; 5 point just right scale regarding amounts of food [30]; food action rating scale (FACT) [31]; compliance diary
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