Inclusion Criteria:

- Male

- Have a history of prostate biopsy indicating HGPIN without cancer within 2 years
prior to registration. At least 4 weeks must have elapsed between the last biopsy
and the biopsy used for baseline data.

- Have an AUA symptom score <=25 at time of registration.

- Refrain from taking lycopene, selenium, vitamin E, or other antioxidant supplements
within 1 month of randomization. Participants must agree to refrain from taking
non-study dietary supplements while on study

- Refrain from taking exogenous hormones, drugs affecting hormone metabolism, or
specified non-prescription substances (e.g. saw palmetto, PC-Spes) taken to affect
the prostate within 1 month of registration. Patients must also agree to refrain from
taking the non-prescription substances while on study

- Be willing to limit intake of lycopene-containing foods while on study

- Have no prior cancer (except basal cell or squamous cell skin cancer) or complete
remission for at least 5 years

- Be ambulatory, capable of self-care and able to carry out light or sedentary work

- Have a dietary fat intake of 23-48% of calories

- Participant's physician recommends repeat biopsy 4-6 months after randomization

Exclusion Criteria:

- No repeat biopsy planned

- Not willing to change diet

- Have a diagnosis of prostate cancer