Related Experiment Video
Updated: May 30, 2026

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
Published on: January 29, 2018
Calcium and vitamin D requirements for optimal bone mass during adolescence
1Department of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA. sabrams@bcm.edu
Purpose Of Review:
There remains very strong interest in the calcium and vitamin D requirements of adolescents related to bone health. The Institute of Medicine (IOM) released new dietary guidelines in late 2010 for these nutrients. These guidelines were primarily based on literature published in 2009 and earlier and emphasized the role of vitamin D combined with calcium in optimizing bone health. A series of research studies published in 2010 and 2011, mostly not included in the IOM report, have further addressed these issues.
Recent Findings:
These most recently published data are generally consistent with the IOM report and earlier data in supporting calcium intakes of 1300 mg/day and vitamin D intakes of 600 IU/day for adolescents. However, there is some suggestion that a slightly higher Recommended Dietary Allowance for vitamin D might be considered at some future time.
Summary:
New dietary guidelines and recent research support increased vitamin D intakes compared with previous recommendations, but not very high doses. Further studies are needed related to high-dose vitamin D intake.
Related Concept Videos
Role of Vitamins in Maintaining Bone Health
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Skeleton and Calcium Homeostasis
Hormones and Bone Tissue
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Essential Minerals for Bone Health
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Bone Disorders
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone Remodeling
