Researchers investigating caffeine consumption in postmenopausal women consider they may have found further evidence for an inverse (“protective”) association between caffeine intake and age-related cognitive impairment and / or risk of dementia. Statistics reveal what is interpreted as a lower risk of probable dementia or global cognitive impairment incidence in women with higher caffeine consumption; which is thought to be generally consistent with the literature.
“The mounting evidence of caffeine consumption as a potential protective factor against cognitive impairment is exciting given that caffeine is also an easily modifiable dietary factor with very few contraindications”. (p.5)
The following NHS Choices Behind the Headlines critical appraisal provides a due sense of perspective by discussing some potential limitations in this interesting research.
Claims that coffee prevents dementia are lukewarm at best. London: NHS Choices; Behind the Headlines, October 5th 2016.
This relates to:
Driscoll, I. Shumaker, SA. [and] Snively, BM. [et al] (2016). Relationships between caffeine intake and risk for probable dementia or global cognitive impairment: the Women’s Health Initiative Memory Study. The Journals of Gerontology. Series A, Biological Sciences and Medical Sciences. September 27th 2016. [Epub ahead of print].
Furthermore, drinking coffee has other modest health benefits.
Possibly also of interest:
Full Text Link (Note: This article requires a suitable Athens password, a journal subscription or payment for access).
Liu, QP. Wu, YF. [and] Cheng, HY. [et al] (2017). Habitual coffee consumption and risk of cognitive decline/dementia: A systematic review and meta-analysis of prospective cohort studies. Nutrition. June 2016; 32(6): 628-36.