MBP Bone Renew (Milk Protein), 60 Capsules, Source NaturalsSource Naturals MBP Bone Renew Dietary Supplement. Advanced Bone Density Support. MBP BONE RENEW is a natural protein complex contained in trace amounts in milk. MBP promotes healthy bone density by increasing the growth of bone forming cells and by making bones more receptive to calcium. MBP has been shown in four double blind, placebo controlled human clinical trials to support healthy net bone formation in women of all ages after 6 months of use.