Calcium in Lettuce, iceberg (includes crisphead types), raw
18.0 mg
2% of the RDA for adult men (1000 mg) , 2% of the RDA for adult women (1000 mg) · UL: 2500 mg
2% of the RDA for adult men (1000 mg) , 2% of the RDA for adult women (1000 mg) · UL: 2500 mg