Vitamin D Deficiency

Vitamin D helps the body absorb calcium, which bones need to grow. A lack of vitamin D (deficiency) can lead to bone diseases such as osteoporosis or rickets. Vitamin D also has a role in the nerve, muscle, and immune systems.

Programs + Services


Metabolic Bone Diseases Clinic

The Metabolic Bone Diseases Clinic at Tufts Medical Center in Boston provides care to manage increased risk for fragility fractures due to bone diseases, like osteoporosis.
More information about programs and services

Doctors + Care Team

Lisa Ceglia, MD

Lisa Ceglia, MD

Accepting New Patients

Title(s): Director, Metabolic Bone Diseases Clinic; Assistant Professor, Tufts University School of Medicine
Department(s): Medicine, Endocrinology, Diabetes and Metabolism
Appt. Phone: 617-636-5689
Fax #: 617-636-4719

Metabolic bone disease, nutrition, general endocrinology

View Full Profile for Lisa Ceglia, MD

Research + Clinical Trials


Vitamin D to Improve Outcomes by Leveraging Early Treatment

A randomized, double-blinded, placebo-controlled, phase III trial (up to maximum n=3000) of early vitamin D3 in vitamin D deficient patients at high risk of ARDS and mortality
More information about research and clinical trials