J Bone Metab.  2019 Aug;26(3):151-160. 10.11005/jbm.2019.26.3.151.

Associations between Dietary Fiber Intake and Bone Mineral Density in Adult Korean Population: Analysis of National Health and Nutrition Examination Survey in 2011

Affiliations
  • 1Department of Family Medicine, Gachon University Gil Medical Center, Gachon University School of Medicine, Incheon, Korea. fmeye@hanmail.net

Abstract

BACKGROUND
The correlations between the amount of daily fiber intake and bone mineral densities (BMDs) in Korean adult population were investigated in our study.
METHODS
Utilizing the Korean National Health and Nutrition Examination Survey in 2011, multivariable linear regression was performed to explore the association between fiber consumption and BMD of lumbar vertebrae 1 to 4 (L1-4 total), L1, L2, L3, and L4 vertebrae, femur neck, femur total, and trochanter. All models were adjusted for age, body mass index, vitamin D level, smoking, physical activity, alcohol use, contraceptive use, hormonal replacement therapy, consumption of carbohydrate, protein, fat, calcium, phosphate, iron, thiamine, riboflavin, niacin, and vitamin C.
RESULTS
In males aged between 18 and 45, fiber intake significantly increased BMDs of L1 (coefficient β=0.004, P=0.040) and L2 (β=0.004, P=0.038) while daily protein consumption significantly lowered BMDs of femur neck (β=−0.001, P=0.009), femur total (β=−0.001, P=0.008), and trochanter (β=−0.001, P=0.008). In males aged 65 and older, nutrient intake shows no significant correlations with BMDs except fat consumption was inversely associated with BMD of trochanter (β=−0.001, P=0.017). In females aged between 18 and 45, fiber intake shows no significant relationship with BMDs while daily fat consumption significantly increased BMDs of L1 (β=0.001, P=0.028), L2 (β=0.001, P=0.024), L3 (β=0.001, P=0.033), and L1-4 total (β=0.001, P=0.017).
CONCLUSIONS
Fiber intake was a protective factor of lumbar spine (L1 and L2) BMD in male aged between 18 and 45 but not in female participants of any age groups.

Keyword

Bone density; Dietary fiber; Nutrition surveys; Osteoporosis

MeSH Terms

Adult*
Ascorbic Acid
Body Mass Index
Bone Density*
Calcium
Dietary Fiber*
Female
Femur
Femur Neck
Humans
Iron
Linear Models
Lumbar Vertebrae
Male
Motor Activity
Niacin
Nutrition Surveys*
Osteoporosis
Protective Factors
Riboflavin
Smoke
Smoking
Spine
Thiamine
Vitamin D
Ascorbic Acid
Calcium
Iron
Niacin
Riboflavin
Smoke
Thiamine
Vitamin D
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