Research Library

Target 25(OH)D levels of 30-50 ng/mL (75-125 nmol/L) recommended for general health; higher targets (40-60 ng/mL) for specific conditions.

Iron deficiency is the most common nutritional deficiency worldwide, affecting an estimated 2 billion people, with ferritin being the most sensitive early marker.

Vitamin D deficiency affects an estimated 1 billion people worldwide, with consequences extending far beyond bone health to include increased risk of cancer, autoimmune disease, and cardiovascular disease.