NCTR Research Highlights

Current Highlight from May 7, 2010

--------------------------
Bioavailability of Soy Isoflavones
Investigators from the National Center for Toxicological Research (NCTR) and the University of Illinois have shown that the pharmacokinetics of bioactive soy isoflavones (e.g., serum concentrations) were identical whether administered as purified active ingredients directly into the stomach or consumed in a high-protein meal made from commercial soy-protein isolates. Manufacturers of dietary supplements and functional foods (foods that provide physiological benefits beyond nutrition) often claim, usually without supporting evidence, that their product is different from and superior to the purified active component(s). Soy-protein isolates are used in many commercial products, including soy infant formula and numerous dietary supplements (e.g., powerbars).

For additional information, please contact Daniel R. Doerge, Ph.D., Division of Biochemical Toxicology, FDA/NCTR.

Protecting the Environment
The FDA Jefferson Laboratories (National Center for Toxicological Research and the Arkansas Regional Laboratory) recycled 160 metric tons of material during the 2009 calendar year alone. Jefferson Laboratories are committed to improving their green status by pollution prevention, waste minimization, and affirmative procurement to protect the environment and employee health.

For additional information, please contact Cody Partridge, FDA/NCTR.

open here to see the full-text:
NCTR Research Highlights