CAST IRON POTS LEACHES IRON INTO FOOD?

Wikipedia says: Cast iron cookware leaches small amounts of iron into the food. Anemics, and those with iron deficiencies, may benefit from this effect, though those with excess iron issues (for example, people with hemochromatosis) may suffer negative effects.

Hmmm? Really?

Acidic items like tomato sauces will be darker from iron leaching out, but many people with iron deficiencies do this for extra iron in their diet. Never store acidic products in cast iron cookware. In fact, never ever use your cast iron pots for storing any foods. It is not recommended that you use your cast iron as a pot for boiling water. Some people say that the hot water will remove small bits of oil from the surface which will then be found floating around. Water breaks down the seasoning and can cause your cast iron to rust.