Hello Don! You wrote: You should be aware that the studies that correlated calcium loss with high protein diets used isolated, fractionated animo acids from milk or eggs.(1) Dr. Herta Spencer, of the VA Hospital in Hines, IL shows that when protein is given as meat, subjects do not show any increase in calcium excreted, or any significant change in serum calcium, even over a long period.(2) Other investigators found that a high protein intake increased calcium absorption when dietary calcium was adequate or high, but not when calcium intake was a low 500 mg per day.(3) (1) Herta Spencer and Lois Kramer, "Factors contributing to osteoporosis", Journal of Nutrition, 1986 116:316-319 (2) Herta Spencer and Lois Kramer, "Further studies of the effect of a high protein diet as meat on calcium metabolism", American Journal of Clinical Nutrition, June 1983 37 (6):924-929 (3) HM Linkswiler, et al, "Calcium retention of young adult males as affected by level of protein and of calcium intake", Trans. N.Y. Acad. Sci. 1974 36:333 [Mahesh Shah] There have been studies using whole milk ( not fractionated amino acids ) with adult college age women that support the net calcium loss theory. I will try to find the reference and post it when I find it.