Cooking with a lump of iron in your stew pot (plus a little lemon juice) helps tackle anaemia:
If the iron fish is used every day in the correct way, Dr Charles says it should provide 75% of an adult's daily recommended intake of iron - and even more of a child's.
Trials on several hundred villagers in one province in Cambodia showed that nearly half of those who took part were no longer anaemic after 12 months.
Also, as they are better than tablets, I wonder if they would be useful in the west too:
"These sort of approaches are so much better than iron tablets, which are really horrible.
"If it's something that is culturally acceptable and not too costly, then any improvement to anaemia levels would be of great benefit."
Amazing how something so simple can be so effective.