Lutein is a carotene found in a number of food sources such as green leafy vegetables, egg yolk and dandelion flowers (yes they are edible).
A paper published in the Journal of Nutrition demonstrates that when breast feeding mothers are supplemented with either high or low doses of lutein, the amount of lutein in the breast milk increases even more than the level in mother’s blood plasma, i.e. the lutein (and other carotenes) are actively transported into the milk. This led to an increase in the amount in the babies blood compared to the control group.
Apparently the effect is greatest in early milk. So, looks like you poor breast feeding mothers out there have yet another pill that you should consider popping.
Still, it’s all for the breast, when you think about it.