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Protein and weight loss: what happens to your bones?

NCT ID NCT00473031

Knowledge-focused Sponsor: Rutgers University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at how different amounts of protein in the diet affect bone health when overweight or obese postmenopausal women lose weight. Researchers measured changes in bone density and quality, as well as diet quality. The goal was to learn, not to treat or cure any disease.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

60 people

The number who actually took part.

Start date

Mar 2007

Finished

Jun 2010

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

50 to 70 years

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Postmenopausal women who are more than 2 years since last menses * Obese or overweight * Must live in the geographic vicinity of Rutgers University Exclusion Criteria: * Currently on any medication known to influence calcium or bone metabolism, including HRT, or with evidence of diseases known to influence calcium metabolism (i.e. metabolic bone disease, hyperparathyroidism, untreated thyroid disease, significant immune, hepatic, or renal disease, significant cardiac disease \[i.e., heart attack or stroke in the past 6 months., abnormal EKG\], active malignancy or cancer therapy within the past year) * History of kidney stones * Weight gain or weight loss (5% of body wt) within 3 months prior to recruitment * Participation in other investigational studies during the 12-month study period * Usually have a very high or low intake of calcium (more than 1500 or less than 500 mg per day)

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Conditions

The condition(s) this trial relates to.

Weight Loss

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Bone density Weight loss

Contacts and locations

Locations

  • Rutgers University

    New Brunswick, New Jersey, 08901, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.