baby poop very dark colour

Dear sisters please help me My daughter is 4 month old fully on formula feed Changed from Bebelac to enfalac because she had constipation problem Now on enfalac but her poop is in color as in picture should I worried bout this I'm sorry for attached my baby's poo poo picture
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2 Replies
Kdg2 susu formula ni ada yg tinggi iron. Iron akn mybabkn poo bby gelap. Tp better refer dgn dktor.
Please seek doctor’s help, try to change the formula feed