Fifteen healthy , young men participated in a randomized @ @-wk crossover study in which the following @ isocaloric diets that were similar in fat contents and compositions were compared : control diet -LSB- nondairy diet ( ~ @ mg Ca/d ) -RSB- , milk diet -LSB- semiskimmed milk-based diet ( @ mg Ca/d ) -RSB- , and cheese diet -LSB- semihard cow-cheese-based diet ( @ mg Ca/d ) -RSB- .