Effects of Whey Protein Powder on Hemoglobin and Iron Metabolism of Male Cyclists

ZU Li; CUI Yingjian

doi:10.19329/j.cnki.1673-2928.2025.04.018

Abstract：This study explores the effects of whey protein combined with exercise training on hemoglobin and iron metabolism-related indicators in male cyclists.Thirty-six male cyclists were evenly divided into four groups:non-training group,non-training+nutrition group,training group,and training+nutrition group.Blood cell indices,serum iron,serum ferritin,and serum transferrin were measured at 0,2,4,and 6 weeks after whey protein supplementation,with statistical analysis conducted using SPSS 22.0.Results showed that compared with the non-training group,blood cell indices decreased significantly in the training group but increased in the non-training+nutrition group.Serum iron levels declined in the training group,whereas they increased in both the non-training+nutrition group and training+nutrition group.Serum ferritin changes were similar across all groups except the training group:in the training group,serum ferritin increased significantly at 2 weeks and then gradually returned to normal,while serum transferrin levels in the training+nutrition group showed little change.Whey protein supplementation during exercise positively affects athletes' blood cell indices,resists reduced serum iron,inhibits elevated serum transferrin,and helps maintain hemoglobin and iron metabolism balance.