Could a simple blood test and iron boost your Toddler's brain power?

This study looked at whether finding and treating low iron (without anemia) in children aged 1 to 3 years can improve their early learning skills like language and motor abilities. About 127 children had a blood test, and those with low iron were given either iron liquid or a placebo for 4 months, plus diet advice. Researchers measured their thinking and learning before and after treatment to see if screening and treatment make a difference.