Calcium and Vitamin D Supplement Prescribing Practices among Providers Caring for Children with Autism Spectrum Disorders: Are We Addressing Bone Health?

Figure 3

Proportion of subjects on the GFCF diet with documented 25(OH)D levels, with sufficient levels. In accordance with the Endocrine Society Practice guidelines [15], a sufficient level was considered to be ≥30 ng/mL, an insufficient level was considered to be between 21 and 29 ng/mL, and a deficient level was considered to be ≤20 ng/dL.