Cohort analysis reveals a composite nutritional index predicts mortality across frailty levels in adults, highlighting the cumulative impact of subclinical nutrient deficits.
Most nutrition-related parameters were correlated to frailty, but only low vitamin D was associated with higher risk for mortality across levels of frailty. As has been observed with other age-related phenomena, even though many nutrition-related parameters were not significantly associated with mortality individually, when combined in an index, they strongly predicted mortality risk.
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Jayanama et al. (2018) studied this question.
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