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Association between nutrient patterns and bone mineral density among ageing adults
Yohannes Adama Melaku1, Tiffany K Gill1, Anne W Taylor1
1Adelaide Medical School, The University of Adelaide, SAHMRI, Adelaide, SA 5005, Australia.
Clinical Nutrition ESPEN
|February 9, 2018
Summary
A mixed-source nutrient pattern, rich in potassium, calcium, and vitamins, may help prevent reduced bone mineral density (BMD) in older adults. Animal- and plant-sourced patterns showed no association with BMD.
Area of Science:
- Nutrition Science
- Gerontology
- Bone Health Research
Background:
- Limited evidence exists on the relationship between overall dietary nutrient intake and bone mineral density (BMD).
- Understanding nutrient patterns is crucial for maintaining bone health in aging populations.
Purpose of the Study:
- To investigate the association between identified nutrient patterns and BMD in an aging Australian cohort.
- To determine if specific dietary nutrient patterns contribute to bone health maintenance.
Main Methods:
- Utilized data from 1135 participants in the North West Adelaide Health Study (NWAHS).
- Assessed dietary intake via food frequency questionnaires and BMD using dual-energy X-ray absorptiometry.
- Identified nutrient patterns using factor analysis and analyzed associations with BMD using linear regression, with adjustments for covariates and sensitivity analyses for missing data.
Main Results:
- Three distinct nutrient patterns were identified: mixed-source (potassium, calcium, fiber, retinol, Vitamin B12), animal-sourced (cholesterol, protein, Vitamin B12, fat), and plant-sourced (fiber, carotene, vitamin C, lutein).
- The mixed-source nutrient pattern showed a positive association with BMD (β = 10.86; 95% CI: 1.91, 19.80) after adjusting for various factors.
- No significant association was found between animal-sourced or plant-sourced nutrient patterns and BMD.
Conclusions:
- The mixed-source nutrient pattern may play a beneficial role in preventing reduced bone mineral density.
- Animal- and plant-sourced nutrient patterns do not appear to be associated with BMD in this population.
- Further research into mixed-source nutrient patterns could inform strategies for bone health in aging individuals.
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