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The effect of soy isoflavones and kiwifruit on bone turnover, hormone levels, blood lipids and faecal microflora in menopausal women.

The effect of soy isoflavones in combination with green kiwifruit on bone turnover, hormone levels, blood lipids and faecal microflora in menopausal women.

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12613001001785
Enrollment
33
Registered
2013-09-10
Start date
2013-09-02
Completion date
2013-12-20
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

The purpose of this study is to evaluate the effects of soybean isoflavones in combination with kiwifruit on equol production and bone health in menopausal women. We hypothesize that the kiwifruit will affect gut microflora and the metabolism of the soy isoflavones.

Interventions

This is a cross over study. There are two interventions. One with 40mg Soy isoflavones in two tablets/day only and the other with 40mg soy isoflavones plus 2 kiwifruit per day. The intervention is for 2 periods of 6 weeks. There is one washout period of 2 weeks before the start of the trial; one arm starting on the soy isoflavones tablets only and the other arm with kiwifruit in combination with the soy isoflavones. After 6 weeks there is a second washout period of 2 weeks before the two arms c

This is a cross over study. There are two interventions. One with 40mg Soy isoflavones in two tablets/day only and the other with 40mg soy isoflavones plus 2 kiwifruit per day. The intervention is for 2 periods of 6 weeks. There is one washout period of 2 weeks before the start of the trial; one arm starting on the soy isoflavones tablets only and the other arm with kiwifruit in combination with the soy isoflavones. After 6 weeks there is a second washout period of 2 weeks before the two arms cross over. The supplementation is for another 6 weeks. Adherence will be recorded in a diary.

Sponsors

Zespri International
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Crossover
Primary purpose
Prevention
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
50 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

Healthy post-menopausal women aged between 50-65 will be recruited.

Exclusion criteria

Exclusion criteria are as follows: osteoporosis at the hip or spine; history of chronic renal or hepatic disease, history of hormone therapy use or breast cancer, soy allergies, and use of any other medication known to affect the skeleton or antibiotics that will affect gut microflora.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026