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School of Home Economics, Oregon State College, Corvallis
Young rats in strict litter mate comparison were fed diets in which practically all of the calcium was derived from dried milk, or in which half of the milk was replaced by dried broccoli or cauliflower to provide approximately the same amounts of calcium. At 60 days of age they were killed and their bodies analyzed for calcium.
The calcium utilization factor for the milk diet amounted to 0.87 ± 0.017; of the diet containing broccoli to 0.79 ± 0.018, and of the diet containing cauliflower to 0.69 ± 0.020. The possible causes of this lower availability of the calcium of cauliflower and broccoli are discussed.