Alhamdulillah, najis macam tu normal ja untuk baby yang baru tukar formula, especially dalam first 1-2 minggu adjustment period tu. Setiap susu berbeza composition, so pupunya akan lain sikit from Dutch Baby. Yang penting tengok overall, kalau dia active, tidak berapa crying, dan berak regularly, memang okay. Tapi kalau persistent constipation atau diaper rash lagi, sebaiknya check with your paediatrician once, cuz sometimes some babies memang tak cocok dengan certain brands even if it's a popular formula. A few mum friends I know had similar experiences, took about 2 weeks baru pupunya settle down completely with the new formula.