That is good to know- I will eat leafy greens every single day. I take a multi vitamin but maybe that isn't enough. Also my son used to be soo fat on my milk and now he has thinned out and he is soo short when both my husband and I are 6 feet tall. My son used to be in the 75th percentile and now he is in the 25th. He breastfeeds and he has been on solids since he was 7 months. Do you think he still may have a deficiency? Should I feed him lettuce every day too?