Risk of total prostate cancer incidence by fifths of protein and amino acid intakes in 131,425 male EPIC participants, including 6939 cases. All analyses were stratified for centre and age at entry and adjusted for baseline values of BMI, height, smoking status, physical activity, educational level, marital status, prevalent diabetes, and energy intake. For animal protein, protein from eggs and plant protein data were missing for the recruitment centre Umeå, Sweden; there was a total of 119,383 men in the analyses for these exposures, including 6297 incident cases. Full details of the number of participants and cases by fifth of intakes are shown in Table S1. HRs and 95% CIs for total prostate cancer incidence are shown in Table S3. ptrend was calculated by rescoring the fifths with their median values. Abbreviations: CI, confidence intervals; EAA, essential amino acids; HR, Hazard ratio; NEAA, non‐essential amino acids.