Which mineral is a major mineral because it is needed in amounts greater than 100 mg/day?

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Multiple Choice

Which mineral is a major mineral because it is needed in amounts greater than 100 mg/day?

Explanation:
Mineral categories are based on daily intake needs. Major minerals are required in amounts greater than 100 mg per day. Calcium fits this category, with typical adult recommendations around 1,000 mg per day, well above the 100 mg threshold. The other minerals listed have daily requirements well below 100 mg: iron about 8–18 mg/day, zinc about 8–11 mg/day, and iodine about 150 micrograms/day (0.15 mg). Therefore, calcium is the major mineral.

Mineral categories are based on daily intake needs. Major minerals are required in amounts greater than 100 mg per day. Calcium fits this category, with typical adult recommendations around 1,000 mg per day, well above the 100 mg threshold. The other minerals listed have daily requirements well below 100 mg: iron about 8–18 mg/day, zinc about 8–11 mg/day, and iodine about 150 micrograms/day (0.15 mg). Therefore, calcium is the major mineral.

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