Actively Recruiting
Zinc and Iron Absorption From Common Beans in Young Adult Women
Led by University of California, Davis · Updated on 2026-02-20
15
Participants Needed
1
Research Sites
139 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Fifteen female study participants will be enrolled in a randomized crossover study to measure fractional and total zinc and iron absorption from four common bean (Phaseolus vulgaris) varieties with varying phytate and polyphenolic contents. Phytate, the storage form of phosphorus in plants, and polyphenols, which contribute to the varied colors of common beans, are natural components of the beans and can reduce zinc and iron bioavailability from these foods.
CONDITIONS
Official Title
Zinc and Iron Absorption From Common Beans in Young Adult Women
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Healthy women with regular menstrual cycles of 25 to 30 days
- Body mass index (BMI) between 18.5 and 30 kg/m2
- Regularly consume at least 4 servings of beans per month
- Usual iron intake below the recommended daily allowance of 18 mg per day
- Willing and able to follow study protocols and participate in all procedures
You will not qualify if you...
- Allergy or dislike of beans
- Current or recent pregnancy within past 12 months
- Recent termination of pregnancy (within 3 months for early abortion, 12 months if late trimester)
- Plans to become pregnant during the study
- History of cancer
- Surgery within past 12 months
- Taking prescription drugs other than contraception or nutritional supplements
- Daily iron supplementation in past 12 months
- Currently breastfeeding
- Medical conditions affecting iron or zinc metabolism such as hemochromatosis or sickle cell disease
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Department of Nutrition
Davis, California, United States, 95616
Actively Recruiting
Research Team
R
Roberta R Holt, PhD
CONTACT
How is the study designed?
Study Type
INTERVENTIONAL
Masking
SINGLE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
BASIC_SCIENCE
Number of Arms
4
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