Kale Higher in Calcium Than Milk

Kale Higher in Calcium Than Milk
Researchers from Creighton University in Omaha, Nebraska, and Purdue University in West Lafayette, Indiana, reported that the calcium in kale is readily absorbed by the body and more efficiently than the calcium contained in milk. In studies of 11 women, the absorption of calcium from 300 mg. of kale averaged .409, while from a similar amount of milk calcium absorption averaged .321. "We interpret our findings as evidence of good bioavailability for kale calcium and probably for the loss of low-oxalate vegetable greens as well," the researchers concluded. Other greens they listed included broccoli, turnip, mustard, and collard greens.
Source: Robert P. Heaney and Connie M. Weaver, "Calcium Absorption from Kale," American Journal of Clinical Nutrition 51: 656-57, 1990.

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