Compared ounce for ounce, what mineral density did a small amount of dried seaweed contain several times more of than milk?

Answer

Calcium

When approximating the mineral density provided by dried seaweed, a concrete comparison is made regarding its calcium content. A small quantity of dried seaweed can contain several times the amount of calcium found in milk when measured ounce for ounce. While the total volume consumed daily might be small, this high concentration, coupled with daily consumption across multiple meals, results in a substantial and consistent intake of essential minerals throughout the year.

Compared ounce for ounce, what mineral density did a small amount of dried seaweed contain several times more of than milk?
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