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Comparison of correlates of bone mineral density in individuals adhering to lacto-ovo, vegan, or omnivore diets: a cross-sectional investigation.
Nutrients. 2015 May 11; 7(5):3416-26.N

Abstract

Vegetarian diets are associated with factors that may not support bone health, such as low body mass and low intakes of protein; yet, these diets are alkaline, a factor that favors bone mineral density (BMD). This study compared the correlates of BMD in young, non-obese adults consuming meat-based (n = 27), lacto-ovo vegetarian (n = 27), or vegan (n = 28) diets for ≥1 year. A 24 h diet recall, whole body DXA scan, 24 h urine specimen, and fasting blood sample were collected from participants. BMD did not differ significantly between groups. Protein intake was reduced ~30% in individuals consuming lacto-ovo and vegan diets as compared to those consuming meat-based diets (68 ± 24, 69 ± 29, and 97 ± 47 g/day respectively, p = 0.006); yet dietary protein was only associated with BMD for those following vegan diets. Urinary pH was more alkaline in the lacto-ovo and vegan groups versus omnivores (6.5 ± 0.4, 6.7 ± 0.4, and 6.2 ± 0.4 respectively, p = 0.003); yet urinary pH was associated with BMD in omnivores only. These data suggest that plant-based diets are not detrimental to bone in young adults. Moreover, diet prescriptions for bone health may vary among diet groups: increased fruit and vegetable intake for individuals with high meat intakes and increased plant protein intake for individuals who follow a vegetarian diet plan.

Authors+Show Affiliations

School of Nutrition and Health Promotion, Arizona State University, 500 N. 3rd Street, Phoenix, AZ 85004, USA. jessica.knurick@asu.edu.School of Nutrition and Health Promotion, Arizona State University, 500 N. 3rd Street, Phoenix, AZ 85004, USA. carol.johnstona@asu.edu.Department of Medicine, University of Colorado, 12631 East 17th Avenue, Aurora, CO 80045, USA. sarah.wherry@ucdenver.edu.The University of Arizona College of Medicine-Phoenix, 550 E. Van Buren St., Phoenix, AZ 85004, USA. iaguayo@email.arizona.edu.

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

25970147

Citation

Knurick, Jessica R., et al. "Comparison of Correlates of Bone Mineral Density in Individuals Adhering to Lacto-ovo, Vegan, or Omnivore Diets: a Cross-sectional Investigation." Nutrients, vol. 7, no. 5, 2015, pp. 3416-26.
Knurick JR, Johnston CS, Wherry SJ, et al. Comparison of correlates of bone mineral density in individuals adhering to lacto-ovo, vegan, or omnivore diets: a cross-sectional investigation. Nutrients. 2015;7(5):3416-26.
Knurick, J. R., Johnston, C. S., Wherry, S. J., & Aguayo, I. (2015). Comparison of correlates of bone mineral density in individuals adhering to lacto-ovo, vegan, or omnivore diets: a cross-sectional investigation. Nutrients, 7(5), 3416-26. https://doi.org/10.3390/nu7053416
Knurick JR, et al. Comparison of Correlates of Bone Mineral Density in Individuals Adhering to Lacto-ovo, Vegan, or Omnivore Diets: a Cross-sectional Investigation. Nutrients. 2015 May 11;7(5):3416-26. PubMed PMID: 25970147.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of correlates of bone mineral density in individuals adhering to lacto-ovo, vegan, or omnivore diets: a cross-sectional investigation. AU - Knurick,Jessica R, AU - Johnston,Carol S, AU - Wherry,Sarah J, AU - Aguayo,Izayadeth, Y1 - 2015/05/11/ PY - 2015/02/13/received PY - 2015/04/09/revised PY - 2015/04/13/accepted PY - 2015/5/14/entrez PY - 2015/5/15/pubmed PY - 2016/1/21/medline KW - acid-base balance KW - bone mineral density KW - protein KW - vegan KW - vegetarian SP - 3416 EP - 26 JF - Nutrients JO - Nutrients VL - 7 IS - 5 N2 - Vegetarian diets are associated with factors that may not support bone health, such as low body mass and low intakes of protein; yet, these diets are alkaline, a factor that favors bone mineral density (BMD). This study compared the correlates of BMD in young, non-obese adults consuming meat-based (n = 27), lacto-ovo vegetarian (n = 27), or vegan (n = 28) diets for ≥1 year. A 24 h diet recall, whole body DXA scan, 24 h urine specimen, and fasting blood sample were collected from participants. BMD did not differ significantly between groups. Protein intake was reduced ~30% in individuals consuming lacto-ovo and vegan diets as compared to those consuming meat-based diets (68 ± 24, 69 ± 29, and 97 ± 47 g/day respectively, p = 0.006); yet dietary protein was only associated with BMD for those following vegan diets. Urinary pH was more alkaline in the lacto-ovo and vegan groups versus omnivores (6.5 ± 0.4, 6.7 ± 0.4, and 6.2 ± 0.4 respectively, p = 0.003); yet urinary pH was associated with BMD in omnivores only. These data suggest that plant-based diets are not detrimental to bone in young adults. Moreover, diet prescriptions for bone health may vary among diet groups: increased fruit and vegetable intake for individuals with high meat intakes and increased plant protein intake for individuals who follow a vegetarian diet plan. SN - 2072-6643 UR - https://www.unboundmedicine.com/medline/citation/25970147/Comparison_of_correlates_of_bone_mineral_density_in_individuals_adhering_to_lacto_ovo_vegan_or_omnivore_diets:_a_cross_sectional_investigation_ L2 - https://www.mdpi.com/resolver?pii=nu7053416 DB - PRIME DP - Unbound Medicine ER -