The Effect of Protein on Calcium Absorption and Gastric Acid Production

Completed · Phase 4 · Has a placebo group

Conditions studied: Osteoporosis

In brief

We have established that dietary protein is an important regulator of intestinal calcium absorption in humans. However, we do not understand the mechanism by which dietary protein is affecting calcium absorption. Therefore, the purpose of this research is to evaluate whether dietary protein-induced changes in gastric acid secretion explain the observed changes in intestinal calcium absorption.

Key facts

Study ID

NCT00719160

Run by

Yale University

People needed

12

Starts

2005-01-01

Expected to finish

2008-05-01

Last updated by the study team

2020-03-06

Who can join

Age: 18 and older, up to 45. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy men and women age 18-45 years
• Caucasian or Asian descent due to increased risk of Osteoporosis

You may not qualify if…

• gastrointestinal diseases
• osteoporosis
• diabetes
• hypertension
• liver disease
• thyroid disorders
• kidney disease
• kidney stones
• cancer
• heart disease
• eating disorders
• obesity
• hypogonadism
• amenorrhea
• oligomenorrhea
• abnormal serum FSH or estradiol levels
• birth control medication or other hormone-altering medications
• pregnancy
• Lifestyle factors such as:
• smoking
• excessive exercise (although moderate exercise is allowed)
• prescription medications known to influence vitamin D or calcium metabolism or gastric acid
• excessive body weight change during the past 6 months
• food allergies
• unusual eating habits or medically prescribed diets

Where it is running

• Yale New Haven Hospital Hospital Research Unit — New Haven, Connecticut, United States

Full record on ClinicalTrials.gov

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