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Vitamin B-12 status of long-term adherents of a strict uncooked vegan diet ("living food diet") is compromised.
J Nutr 1995; 125(10):2511-5JN

Abstract

The present study examined the vitamin B-12 status in long-term adherents of a strict uncooked vegan diet called the "living food diet." The study was comprised of two parts. In the cross-sectional part, the data on serum vitamin B-12 concentrations and dietary intakes in 21 (1 male, 20 females) long-term adherents (mean 5.2 y, range 0.7-14) of the "living food diet" were compared with those of 21 omnivorous controls matched for sex, age, social status and residence. In the longitudinal part of the study, food consumption data were collected and blood samples were taken from nine "living food eaters" (1 male, 8 females) on two occasions 2 y apart. The cross-sectional study revealed significantly (P < 0.001, paired t test) lower serum vitamin B-12 concentrations in the vegans (mean 193 pmol/L, range 35-408) compared with their matched omnivorous controls (311, 131-482). In the vegan group, total vitamin B-12 intake correlated significantly (r = 0.63, P < 0.01) with serum vitamin B-12 concentration. The vegans consuming Nori and/or Chlorella seaweeds (n = 16) had serum vitamin B-12 concentrations twice as high as those not using these seaweeds (n = 5) (mean 221 pmol/L, range 75-408, vs. 105, 35-252, P = 0.025). In the longitudinal study, six of nine vegans showed slow, but consistent deterioration of vitamin B-12 status over a 2-y observation period. On the basis of these results we conclude that some seaweeds consumed in large amounts can supply adequate amounts of bioavailable vitamin B-12.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Department of Clinical Nutrition, University of Kuopio, Finland.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

7562085

Citation

Rauma, A L., et al. "Vitamin B-12 Status of Long-term Adherents of a Strict Uncooked Vegan Diet ("living Food Diet") Is Compromised." The Journal of Nutrition, vol. 125, no. 10, 1995, pp. 2511-5.
Rauma AL, Törrönen R, Hänninen O, et al. Vitamin B-12 status of long-term adherents of a strict uncooked vegan diet ("living food diet") is compromised. J Nutr. 1995;125(10):2511-5.
Rauma, A. L., Törrönen, R., Hänninen, O., & Mykkänen, H. (1995). Vitamin B-12 status of long-term adherents of a strict uncooked vegan diet ("living food diet") is compromised. The Journal of Nutrition, 125(10), pp. 2511-5.
Rauma AL, et al. Vitamin B-12 Status of Long-term Adherents of a Strict Uncooked Vegan Diet ("living Food Diet") Is Compromised. J Nutr. 1995;125(10):2511-5. PubMed PMID: 7562085.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Vitamin B-12 status of long-term adherents of a strict uncooked vegan diet ("living food diet") is compromised. AU - Rauma,A L, AU - Törrönen,R, AU - Hänninen,O, AU - Mykkänen,H, PY - 1995/10/1/pubmed PY - 1995/10/1/medline PY - 1995/10/1/entrez SP - 2511 EP - 5 JF - The Journal of nutrition JO - J. Nutr. VL - 125 IS - 10 N2 - The present study examined the vitamin B-12 status in long-term adherents of a strict uncooked vegan diet called the "living food diet." The study was comprised of two parts. In the cross-sectional part, the data on serum vitamin B-12 concentrations and dietary intakes in 21 (1 male, 20 females) long-term adherents (mean 5.2 y, range 0.7-14) of the "living food diet" were compared with those of 21 omnivorous controls matched for sex, age, social status and residence. In the longitudinal part of the study, food consumption data were collected and blood samples were taken from nine "living food eaters" (1 male, 8 females) on two occasions 2 y apart. The cross-sectional study revealed significantly (P < 0.001, paired t test) lower serum vitamin B-12 concentrations in the vegans (mean 193 pmol/L, range 35-408) compared with their matched omnivorous controls (311, 131-482). In the vegan group, total vitamin B-12 intake correlated significantly (r = 0.63, P < 0.01) with serum vitamin B-12 concentration. The vegans consuming Nori and/or Chlorella seaweeds (n = 16) had serum vitamin B-12 concentrations twice as high as those not using these seaweeds (n = 5) (mean 221 pmol/L, range 75-408, vs. 105, 35-252, P = 0.025). In the longitudinal study, six of nine vegans showed slow, but consistent deterioration of vitamin B-12 status over a 2-y observation period. On the basis of these results we conclude that some seaweeds consumed in large amounts can supply adequate amounts of bioavailable vitamin B-12.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0022-3166 UR - https://www.unboundmedicine.com/medline/citation/7562085/Vitamin_B_12_status_of_long_term_adherents_of_a_strict_uncooked_vegan_diet__"living_food_diet"__is_compromised_ L2 - https://academic.oup.com/jn/article-lookup/doi/10.1093/jn/125.10.2511 DB - PRIME DP - Unbound Medicine ER -