It showsthat the particlefluencecan be directly calculated from the measured dosewithatransformationcoefficientwhichis notobviouslyaffectedbyshieldingaround the measuring site.
I'm not sure how your metabolism was tested (it canbe tested directly by a breathing test, which is available in some gyms and doctors' offices, or itcanbecalculated using several different formulas), so the significant drop that you report may notbe completely accurate.