to analyze the feasibility for patients with early luminal breast cancer to be compliant with a diet modification - ketogenic or proteins restricted diet - during 9 +/- 1 days, before breast cancer surgery.
It's a Pilot study, monocentric, randomized
Women 18 to 80 years old
Invasive breast carcinoma, non-metastatic, stage I to III, pathologically proven, ER and/or PR positive, HER2 negative (luminal)
No treatment yet for the current breast cancer
Candidate for primary surgery
Metabolic disease or other disease impairing the metabolism analysis
High level athlete
Unintentional weight loss ≥ 5% during the last month, or 10% during the last 6 months or compared to usual weight
Unjustified dietary supplement (not justified by a measured deficiency) during the last month