TABLE N-1Table of Ratiosa Used to Estimate the Extent of Protection from Vitamin B12 Stores

Vitamin B12 Threshold, μgInitial Store, mg
12345678910
35036911141720232629
300371013172023273033
250481216202428323640
2005101520253035404550
1507132027334047536067
100102030405060708090100
a

This represents the initial vitamin B12 stores divided by the level of stores at which signs of vitamin B12 deficiency may become evident.

From: N, Estimation of the Period Covered by Vitamin B12 Stores

Cover of Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline
Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline.
Institute of Medicine (US) Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and its Panel on Folate, Other B Vitamins, and Choline.
Washington (DC): National Academies Press (US); 1998.
Copyright © 1998, National Academy of Sciences.

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