It’s common for babies to have changes in stool when new foods or formulas are introduced. Green stool is not issue Thick mucous in stool can sometimes be due to minor infections or food sensitivities.

Hello Green stools are common in formula-fed babies due to iron fortification and are not a concern by themselves. Yellow stools with mucus after starting Nestum could be a transitional digestive response as baby adapts to solids. Occasional mucus without blood or fever is not alarming. Slight looseness in stools is common when new food is introduced. Likely not an allergy unless associated with rash, blood in stool, persistent vomiting, or severe diarrhea. Current symptoms are more consistent with a mild dietary adjustment phase. Can continue Nestum in small quantities (1–2 spoons once daily). Avoid overfeeding. Stage 2 formula has slightly different composition suited for 6+ months. The change might temporarily affect stool pattern but does not warrant switching back unless persistent issues (e.g., continuous vomiting, blood in stool, refusal to feed). No clear indication of milk allergy (which typically includes eczema, blood in stools, persistent vomiting, or failure to thrive). Temporary decrease in appetite may occur during adjustment or minor viral illness. Watch for hydration: urine output, alertness, moist tongue, and activity. Encourage frequent small feeds.

Your baby likely has a mild tummy upset, which is common after starting solids or due to minor viral exposure. The yellow-green, slightly loose stools with mucus are not alarming if there’s no vomiting, fever, or dehydration.

Consult with Pediatrician physically for further evaluation and treatment

Loose stools may b due to solids . If der is more mucus or blood in stool then its concern . Continue feeding and nestum . don’t introduce new food items for 1 week .

Green stools are common in babies on formula feeds and now the change in colour is most probably due to the transition to solids Occasional mucus in stools can be normal