Dairy Intake and Uterine Fibroid Development: A Prospective Study

Area of Science:

• Reproductive health
• Nutrition science
• Epidemiology

Background:

• Uterine fibroids affect many women, particularly Black/African American women.
• Previous studies suggest dairy intake may lower fibroid risk, but lacked robust fibroid detection methods.
• Standardized serial ultrasound screening is crucial for accurate fibroid assessment.

Purpose of the Study:

• To investigate the association between dairy intake and uterine fibroid development and growth.
• To examine the impact of milk, cheese, and yogurt consumption on fibroid incidence and progression.
• To utilize prospective cohort data with serial ultrasounds for precise fibroid detection.

Main Methods:

• Prospective cohort study (2010-2018) of 1,610 Black/African American women without prior fibroid diagnosis.
• Baseline and follow-up Food Frequency Questionnaires assessed dairy and milk intake.
• Ultrasound screening identified incident fibroids; Cox models analyzed incidence and fibroid growth rates.

Main Results:

• No significant association found between dairy or milk intake and fibroid incidence.
• Higher baseline total dairy intake (≥1 cup/day) correlated with a 19% decrease in fibroid growth over 20 months.
• Higher baseline milk intake (≥0.5 cups/day) correlated with a 26% decrease in fibroid growth over 20 months.

Conclusions:

• Dairy consumption, particularly milk, may play a role in reducing uterine fibroid growth.
• Further research is needed to confirm these findings and explore mechanisms.
• Dietary interventions including dairy may be a potential strategy for fibroid management.