Selenium utilization during human lactation by use of stable-isotope tracers.

摘要: We examined utilization of selenomethionine (SeMet) and selenite in six lactating (L) nonlactating (NL) women, 2-3 mo postpartum, seven never-pregnant (NP) women by use stable-isotope tracers. All groups had similar selenium status at the start study. Significantly more from SeMet than was absorbed appeared plasma all groups. Milk contained apparently selenite. More urine NP NL subjects whereas L approximately same amount their urine. retained significantly selenite; did other two Absorption retention not appear to be different that suggesting requirements during lactation are increased mainly because milk losses.