Study vitamin D changes in women during pregnancy or adult life
Part of Women’s health & pregnancy clinical trials.
This study measures how vitamin D levels change over about 20 days in women. It may help researchers understand vitamin D patterns in pregnancy and different body sizes, which can guide future health recommendations.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are a woman who is Black or White, and 20–39 years old
- Your BMI is either 18.5–24.9 or 30 or higher (based on current or pre-pregnancy BMI)
- If you’re pregnant: it must be one baby (singleton) and you’re in the 1st, 2nd, or 3rd trimester
- If you’re pregnant: you should not have pregnancy complications like gestational diabetes or pregnancy hypertension
- You should not have HIV, an eating disorder, malabsorption problems, or diabetes
- You cannot take medicines/supplements that affect vitamin D or calcium during the study, and you must avoid tanning beds
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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