Anti-Inflammatory Diet in BRC Patients on Aromatase Inhibitors

This trial is testing whether an anti-inflammatory diet can help reduce joint pain and other side effects in postmenopausal women with breast cancer who are taking aromatase inhibitors (hormone-blocking medications used after breast cancer treatment). Aromatase inhibitors commonly cause joint stiffness and pain, and the study wants to see if diet can help. **You may be eligible if...** - You are 45 to 70 years old and postmenopausal - You have been diagnosed with hormone receptor-positive, HER2-negative breast cancer (stages I to IIIa) - You have been taking aromatase inhibitors for 6 to 30 months - Your BMI is between 20 and 34.9 - You are able to understand the study and give written consent **You may NOT be eligible if...** - Your breast cancer has spread or is locally advanced - Your tumor is HER2-positive - You have another serious chronic illness, active infection, autoimmune disease, or a history of stroke or heart attack - You have dementia or a significant neurological condition - You have allergies to fish, fish oil, nuts, or evening primrose oil - You are currently taking blood-thinning medications like warfarin - You are currently using fish oil, flaxseed, or omega-3 supplements - You take cholesterol-lowering medications (statins) Talk to your doctor to see if this trial is right for you.