Immuno-globulins (g/l)

Sample collection

Zinc group (n = 28)

Control group (n = 30)

P value

Mean ± SD

Mean ± SD

IgG

Before

5.49 ± 0.72

5.48 ± 0.73

0.428

After

6.36 ± 0.95

5.67 ± 0.74

0.003

IgA

Before

0.43 ± 0.06

0.41 ± 0.06

0.341

After

0.76 ± 0.09

0.75 ± 0.09

0.411

IgM

Before

1.18 ± 0.19

1.23 ± 0.17

0.231

After

1.58 ± 0.13

1.43 ± 0.20

0.012