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For those who don't know, or realize... talc causes lung problems (very similar to black lung disease - also called silicosis, it is termed 'Talc pneumoconiosis') when you breathe it in. "Talc pneumoconiosis also can lead to lung fibrosis."
As for the risk of cancer from the use of talcum powders.
http://www.cancer.org/cancer/cancercauses/othercarcinogens/athome/talcum-powder-and-cancer
"It is not clear if consumer products containing talcum powder increase cancer risk. Studies of personal use of talcum powder have had mixed results, although there is some suggestion of a possible increase in ovarian cancer risk. There is very little evidence at this time that any other forms of cancer are linked with consumer use of talcum powder."
In the past it was the amount of asbestos found in talc that was warned-of; and any studies of talc workers is probably related to that. Talc used in commercial products has had the asbestos removed.
However, overall... I would never recommend the constant, daily or continued use of Gold Bond or Baby Powder because of the concerns it raises (particularly the breathing-in of talc. It is hard not to breathe in talc, it being powdered all over the room in a fine mist whenever it is used).
