Increasing or lowering iron absorption is easy. Increasing iron is also easy. Lowering iron however, is not easy. Preston Estep, in his book, "The Mindspan Die

Increasing or lowering iron absorption is easy. Increasing iron is also easy. Lowering iron however, is not easy. Preston Estep, in his book, "The Mindspan Diet", made a convincing argument, in my opinion, for higher iron levels being extremely harmful in the long term, to the point where he considers high iron to be perhaps the largest Alzheimer/dementia risk, even with levels of iron that are considering "normal".