Hi
This is the common concern we across
U have done a right thing by introducing dilutedcows milk only after one year.good job
Usually around 300-400 ml of milk per day is advicable for children .more than that would lead to constipation issues,anemia etc
So,u limit milk intake
Encourage more water
Increase fiber diet
Include fruit and vegetable serving in the daily diet
It needs to be addressed immediately.prolonged constipation would lead to so many issues in the future.
I hope I have answered your query
Feel free to ask if any
Next Steps
if u want to know full dietary plan for ur child .would advice for an online consult