Pink Sheet is part of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

This copy is for your personal, non-commercial use. For high-quality copies or electronic reprints for distribution to colleagues or customers, please call +44 (0) 20 3377 3183

Printed By

UsernamePublicRestriction
UsernamePublicRestriction

Vitamin C

This article was originally published in The Tan Sheet

Executive Summary

RDA for women should be increased to 90 mg based on new depletion-repletion study data, NIH researchers say in Aug. 14 Proceedings of the National Academy of Sciences. Mark Levine, MD, National Institute of Diabetes & Digestive & Kidney Diseases, et al., note current RDA of 75 mg was based on extrapolated data for men. Levine and colleagues evaluated long-term intake in 15 women who received doses ranging from 30 mg-2,500 mg daily, finding a "steep sigmoidal relationship between vitamin C doses and resulting [plasma] concentrations for doses of 30 mg-100 mg daily." Current RDA "is on the steep linear portion" of the curve, "where small dose changes cause large changes in plasma concentration," Levine et al. say. They also suggest current 90 mg RDA for men may be too low
Advertisement

Topics

Advertisement
UsernamePublicRestriction

Register

PS092944

Ask The Analyst

Please Note: You can also Click below Link for Ask the Analyst
Ask The Analyst

Your question has been successfully sent to the email address below and we will get back as soon as possible. my@email.address.

All fields are required.

Please make sure all fields are completed.

Please make sure you have filled out all fields

Please make sure you have filled out all fields

Please enter a valid e-mail address

Please enter a valid Phone Number

Ask your question to our analysts

Cancel