Based on Italian consumption data, which green has the lowest listed calcium content per 100 grams compared to collards?
Answer
Lettuce (45 mg)
To illustrate the remarkable calcium density in collard greens, data from analyses concerning vegetables commonly consumed in Italy provides a clear comparative baseline. The calcium content measured in 100 grams of collards reaches approximately 333 mg in one analysis, establishing it as a high source. When measured against other common leafy greens on the same weight basis, lettuce registers significantly lower at only 45 mg of calcium per 100 grams. Endive shows a moderate content at 93 mg, and spinach contains 78 mg. Therefore, lettuce demonstrates the lowest calcium level among the specific greens compared in this context, emphasizing the substantial advantage collards offer in this mineral category.

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