Pilot Study of the Effect of a Low Glycemic Index Diet on Breast Density (Diet and Breast Health Study )

Inclusion Criteria:

- Are between 40 and 60 years of age

- Still menstruating with at least 10 menstrual cycles in the previous 12 months

- Not Taking hormone replacement therapy

- Stable oral contraceptive use (no changes is use in past 12 months nor changes
intended during interventional period)

- Have not been previously diagnosed with breast cancer, DCIS,lobular carcinoma in
situ, atypical lobular hyperplasia or atypical hyperplasia

- No history of breast augmentation or reduction surgery

- Have no history of any other malignancy (excluding non-melanoma skin cancer) in the
previous 5 years

- Have no history of diabetes or other metabolic diseases requiring dietary
modification

- Have a study baseline mammographic density of at least 50% as estimated by
mammographer

- BIRADS 1 or 2 mammogram if first ever mammogram, otherwise stable mammogram (no
change since previous year)

- Have not followed a weight reduction or Atkins typs diet in the past 6 months Not
pregnant or lactating in the past 12 months, nor intending pregnancy during the study
period

- Successful completion of three baseline telephone-administered 24- hour dietary
recalls