Vitamin D
CLASS: 
Fat soluble vitamin
ROLE:Bone formation
SOURCES: Synthesised in body with adequate sun exposure
RECOMMENDED DAILY INTAKE (RDI): 400 IU
DEFICIENCY STATE: OsteoporosisBone malformation (Rickets)
OVERDOSE STATE: Hypercalcaemia
RISKS: Poor Calcium intakePoor sunlight exposureFat malabsorption syndrome: pancreas and liver disease, coeliacdisease
DIAGNOSIS: Blood testsXRayBone Densitometry
OTHER NUTRIENT INTERACTIONS: CalciumMagnesium