When it comes to milk how much is too much for a child to drink?
Researchers have done the analyzing and have come up with the magic number of two eight ounce cups of milk a day. But why? A recent study from a Canadian hospital looked at how cow's milk impacted the storage of iron and vitamin D in a child's body.
In the study of 2 to 5-year-olds, researchers found that two cups of milk provide children with a sufficient amount of vitamin D and iron, without any adverse reactions. Kids who had more than the 2 cups of cow's milk a day had higher vitamin D supplies, but lower amount of iron.
The calcium seems to impact a body's ability to absorb iron. Low iron can lead to anemia, where the body produces too few of the red blood cells that transport oxygen throughout the body.
Here's the exception in this study. Children with dark skin didn't hit the vitamin D target with 2 cups of milk so they might need a supplement.
You can also find vitamin D in other foods such as fish and fortified orange juice and yogurt.