v ae —_ a strontium you get a certain smcunt of strontium depasit, now as you increase the calcius you decrease the strontium deposit up to a point of optimal calcium intake. Beyond that point the addition of mre calcium dees not cause a further redustion in the deposition of strontium. What is this minimum? 20% of the strontius? I couldn't give you a quantitative Sigure, except the curves for animals chow that as you reach the optimal congentration of caloiua that the curve of the strontius levels off as far as the reduction, in other words that the curve goes dow like this, and ite linesr up te « certain point and then 1t starts to level eff, The reason it levels off 1s probably because of the fact that strontius is sot behaving exactly the same as calcium. There is a difference and when you get to a certain point in which the bedy has its maxima enount of calcium being deposited any additional calcium you give in, first of all will be taken out ky excretion methads and the strontium at the point may have ancther type of mechanism of deposition as far as the quantitative relationship is concerned and it would be at that point, for instance, vhere the additian of sore strontium might keep the curve going down whereas caloiua wouldn't. I'm afraid I didn’t understand, I do not understand vhether you are talking aboutthe ratio of deposition te intake, or whether you are talicing about the ratio of strontium te calcium, wW™HELL In other words if you run a series of experiments with various asounts DOE ARCHIVES . oe 5 5 i