Medicine and science in sports and exercise
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Med Sci Sports Exerc · Apr 2001
Randomized Controlled Trial Clinical TrialEffect of energy restriction and exercise on vitamin B-6 status of women during lactation.
Lactation increases vitamin B-6 requirements because its concentration in breast milk is related to maternal intake and it is essential for infants. Exercise may also increase the requirement because it increases utilization and excretion of vitamin B-6. Therefore, the purpose of this study was to determine whether energy restriction and exercise affected vitamin B-6 status of lactating women. ⋯ Energy restriction and exercise from 4 to 14 wk postpartum in overweight, breastfeeding women consuming adequate dietary intakes and 2.0 mg of supplemental vitamin B-6 does not adversely affect vitamin B-6 status or infant growth.