Ongoing Research Studies
The O’Brien Lab has numerous research projects currently recruiting participants.
Here are all the current studies running in the lab.
The All of Us Study, led by the O’Brien lab, is recruiting participants. This study aims to understand how much iron is truly needed in your diet.
Eligibility: 18-50 years old, healthy, male or premenopausal female, non-smoker, willing to refrain from donating blood for the study period (1 year and 4 months)
Study Location: Cornell University, Ithaca, NY
Honorarium: $500
The Vitamin D Kinetics Study, led by the O’Brien Lab, is recruiting participants. This study aims to understand how vitamin D is absorbed and how factors such as genetic makeup, skin tone, and body mass index influence the risk of vitamin D deficiency.
Eligibility: 20-39 years old, healthy, non-pregnant female, self-identify as Black ancestry; or 20-39 years old, pregnant with one baby, self-identify as White or Black ancestry
Time Commitment: 6 visits to the Human Metabolic Research Unit in Martha Van Rensselaer Hall
Study Location: Cornell University, Ithaca, NY
Honorarium: $250 gift card
Email: d4health@cornell.edu
Tel: (607) - 254 - 5376
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The SCRAMBLE study, led by the O’Brien lab, is recruiting participants. The purpose of the research is to determine if eating eggs that contain additional vitamin D3 or additional 25(OH)D3 can improve vitamin D status in healthy adult males and females. The effects of bio-fortification on the gut microbiome will also be assessed.
Eligibility: 18-40 years old, healthy, male or premenopausal female, non-smoker, able to commute to Cornell campus 9 times over 8-weeks
Study Location: Cornell University, Ithaca, NY
Honorarium: $150
The FeMicrobiome Study, led by the O’Brien lab is an ongoing study that has concluded recruitment. This study aims to understand how diet impacts the gut microbiome and iron absorption.
Eligibility: 18-40 years old, healthy, non-smoker, habitually ingesting a plant-based diet, habitually ingesting a diet containing animal products
Time Commitment: 2 short visits to the Human Metabolic Research Unit in Martha Van Rensselaer Hall
Study Location: Cornell University, Ithaca, NY
Honorarium: $60 gift card and 2 free meals
Email: FeMicrobiome@cornell.edu
Tel: (607) - 254 - 5376
