My toddler has trouble with cow milk, and lactose free milk. he becomes constipated after a few cups. but cow based toddler formula gives him diarrhea?

Simplify: Most american children drink way too much milk and yes milk can result in a child who is very constipated. However formulas are filled with vitamins and ions and electrolytes that make you have a diarrhea in excess because it retains water in your intestines. Try to simplify his diet more water maybe some herbal tea that has no caffeine, and a lot less milk i preferred my kids eat their dairy.