Level D· Scientific groundwork from lab and animal studiesLaboratory StudyEurope PMCOpen access

Effects of calcium, fucoidan and chitooligosaccharide supplementation on bone mineral density and calcium balance in ovariectomized rats

Yun S., Choi MK., Kim MH.

Laboratory Study, published in Nutr Res Pract (2025) — summary generated from the PubMed abstract.

Open my reading list
Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
Read the A–D evidence level guide

This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Laboratory Study
Journal
Nutr Res Pract (2025)
Reported sample size
—
Source database
Europe PMC
PMID
41377605
PMCID
PMC12688000
DOI
10.4162/nrp.2025.19.6.880

Abstract (original English)

Background/objectives This study examined the effect of calcium (Ca), fucoidan, and chitooligosaccharide supplementation alone and in combination on bone mineral density (BMD), bone metabolism, and Ca balance in ovariectomized (OVX) rats. Materials/methods Forty-eight female Wistar rats (6 weeks) were used in this study; among them, 40 rats were OVX, and the rest of the rats were sham-operated (sham). The sham group and one OVX group were fed a standard diet (AIN-96, Ca 0.5%), and the remaining OVX groups received either a fucoidan-supplemented diet (fucoidan 0.05%; OVX-Fu), a chitooligosaccharide-supplemented diet (chitooligosaccharide 0.5%; OVX-Chito), a seaweed Ca-supplemented diet (Ca 1.5%; OVX-Ca), or a fucoidan, chitooligosaccharide and seaweed Ca-supplemented diet (fucoidan 0.05%, chitooligosaccharide 0.5%, Ca 1.5%; OVX-CaFuChito) for 12 weeks. Results The OVX-CaFuChito group had the highest feed intake, but had a significantly lower final body weight than the other groups in OVX rats. The Ca retention was significantly higher in the OVX-Ca and OVX-CaFuChito groups than in all the other groups ( P Conclusion These results suggest that only the combined supplementation of Ca, fucoidan, and chitooligosaccharides may have a beneficial effect on preserving BMD along with suppressing postmenopausal weight gain.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence

Browse all related research

Filter the research library by this study's title keywords, author, or publication year.