That's the first I've heard of it... so I looked it up. https://brightthemag.com/lucky-iron-fish-raise-questions-about-how-best-to-address-anemia-cambodia-d65b

That's the first I've heard of it... so I looked it up. https://brightthemag.com/lucky-iron-fish-raise-questions-about-how-best-to-address-anemia-cambodia-d65bd66cf228 https://brightthemag.com/lucky-iron-fish-raise-questions-abo... and https://pubmed.ncbi.nlm.nih.gov/28049274/ https://pubmed.ncbi.nlm.nih.gov/28049274/