Is moldy bread safe?

I want to know if eating moldy bread is safe.

David (by SMS)

Mold is the fruiting body of a fungus that grows on bread. Unfortunately, once you see the mold on the bread, the fungus has spread all through it, and it is no longer safe to eat. Eating molding bread could cause headaches and stomachaches, and even in some cases, cause you to hallucinate, (with certain types of fungus) Therefore, it is not safe to eat moldy bread. Ironically, mold on cheese can be cut off, and the rest of the cheese can still be eaten. This is because cheese is much harder than bread, and the mold cannot spread so easily through it.

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