Femoral Neck Bone Loss in Males Protected by High Dietary Fiber

HealthDay News — Higher dietary total fiber and fruit fiber is protective against bone loss at the femoral neck in men, according to a study published online in the Journal of Bone and Mineral Research.

Zhaoli Dai, PhD, from the Boston University School of Medicine, and colleagues examined the correlation between dietary fiber, assessed using the Willett food frequency questionnaire, and bone loss at the femoral neck, trochanter, and lumbar spine in older men and women. Bone mineral density was measured using dual-energy X-ray absorptiometry at baseline (1996-2011) and in 2001-2005 and 2005-2008 among 792 men and 1065 women.

The researchers found that in men, but not women, higher dietary total fiber and fruit fiber was protective against bone loss at the femoral neck (P =.003 and .008, respectively). Compared with men in quartile 1 of fiber intake, those in quartiles 2 to 4 had significantly less bone loss at the femoral neck (all P <.04). There were no associations with hip bone loss in women; fiber from vegetables seemed protective against spine bone loss in women but not men. No correlations were seen for cereal fiber or nut and legume fiber with bone loss in men or women.

“Our findings suggest that higher dietary fiber may modestly reduce bone loss in men at the hip,” the authors write.

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Dai Z, Zhang, Lu N, Felson DT, Kiel DP, Sahni S. Association between dietary fiber intake and bone loss in the Framingham Offspring Study [published online October 12, 2017]. J Bone Miner Res. doi:10.1002/jbmr.3308