BRITS VITA VITAMIN D3 4000 IU (100 mcg). Brits Vita Vitamin D3 tablets provide ahigh-strength 4000 IU (100 mcg) dose in aneasy-to-swallow tablet, suitable for daily use. Vitamin D3 (cholecalciferol) is the preferred form of vitamin D, as it is effective at increasing vitamin D levels in the body.
