Fortified meals showed no clear overall bone-density benefit in a pilot trial
Adding eggshell-derived calcium and vitamin D to meal replacements produced no statistically significant overall difference in bone density compared with regular meals.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The fortified meals did not produce a statistically significant overall advantage in bone mineral density or bone metabolism markers during this pilot trial. That result does not establish that the approaches are equivalent or that fortification has no effect. Exploratory subgroup findings suggest questions for further research, rather than a demonstrated overall benefit.
The abstract provides no overall effect estimates or confidence intervals. Its small pilot sample and exploratory subgroup analyses limit how firmly this abstract-based summary can interpret either benefit or a null result.
What researchers found
Overall bone mineral density
Fortified versus regular meal replacements after 6 months, with exercise encouraged in both groups. The abstract does not quantify the between-group effect.
What the comparison tested
Researchers compared regular prepared meals with versions containing added eggshell calcium and vitamin D. Participants in both groups were encouraged to exercise, so the comparison examined fortification within that shared exercise context.
Why the subgroup result remains tentative
An analysis conducted after the planned overall comparison suggested possible links between exercise, nutrition and lumbar spine bone density. The authors describe this as exploratory and call for larger trials to test whether it can be reproduced.
The original publication
Effects of Eggshell Calcium- and Vitamin D-Fortified HMR Combined with Aerobic Exercise on Bone Mineral Density in Postmenopausal Women: A Pilot Randomized Controlled Trial.
Jung S, Shin SH, Kim YS et al.
Nutrients · 2026
- PubMed ID
- 41754122
- Record checked
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