In 66,120 days of total follow-up , there were no differences on the frequency of stools passage ( Human Milk : 3.8 2.4 evacuations per day ; Pro + Metlin + Metlos 3.6 2.0 ; Pro + Metlin 3.6 2 ; only Pro 3.4 2.3 only formula 3.4 2.0 ; p NS ) .