Natural food folate and late-life depression

J Nutr Elder. 2009 Oct;28(4):348-58. doi: 10.1080/01639360903417181.

Abstract

Low folate status has been linked to depression, but findings have been inconsistent. The authors sought to examine the association between folate intake and late-life depression. This cross-sectional study included individuals age 60 and older (n = 111 depression, n = 136 comparison). Depression participants received psychiatric care. Folate and kilocalorie intakes were assessed with a Block 1998 food frequency questionnaire. Naturally occurring food folate was inversely associated with depression after controlling for age, sex, race, education, and total energy (P = 0.0047). All other folate variables including total dietary folate and folic acid were non-significant for depression. These findings may indicate that the naturally occurring form of folate is uniquely protective for depression and perhaps brain health. Alternatively, natural folate may be a surrogate for other nutrients or overall dietary quality.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Aged
  • Aging / physiology
  • Case-Control Studies
  • Cross-Sectional Studies
  • Depression / blood
  • Depression / epidemiology*
  • Female
  • Folic Acid / administration & dosage*
  • Folic Acid / blood*
  • Humans
  • Male
  • Middle Aged
  • Nutritional Status
  • Vitamin B Complex / administration & dosage*

Substances

  • Vitamin B Complex
  • Folic Acid