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Table 5 Blood variables measured at pre-, mid- and post-intervention time points during supplementation with either KER or CAS protein

From: The effect of chronic soluble keratin supplementation in physically active individuals on body composition, blood parameters and cycling performance

  Keratin Casein
Pre Mid Post Pre Mid Post
RBC (× 1012/L) 5.0 ± 0.3 5.0 ± 0.3 5.0 ± 0.3 5.1 ± 0.3 5.0 ± 0.2 5.0 ± 0.3
Hct (%) 44.8 ± 2.0 43.9 ± 1.7 44.7 ± 2.0 44.7 ± 2.5 44.2 ± 1.7 44.5 ± 1.9
Hb (g.L− 1) 149 ± 6 147 ± 6 148 ± 7 148 ± 7 148 ± 5 150 ± 6
MCV (fL) 89.4 ± 2.8 88.9 ± 2.8 89.0 ± 2.3 88.8 ± 3.6 89.0 ± 3.3 88.5 ± 3.4
MCH (pg) 29.7 ± 1.1 29.7 ± 1.3 29.6 ± 1.3 29.6 ± 1.4 29.8 ± 1.1 29.7 ± 1.2
MCHC (g/L− 1) 332 ± 8 334 ± 12 332 ± 11 334 ± 15 335 ± 11 336 ± 9
WBC (× 109/L) 5.7 ± 1.0 6.0 ± 1.3 5.7 ± 0.7 6.0 ± 1.2 6.1 ± 1.0 5.9 ± 1.0