FORTIUS D3+B12: Immune System Vitamin D Helps the Immune System During Cold and Flu Season

The analysis suggests that taking vitamin D daily or weekly was more effective than larger doses taken in single or monthly boluses. The most common daily dose used was vitamin D3 300-4,000 IU.

This flu season, it is important for pharmacists to convey that daily and weekly vitamin D supplementation helps keep the immune system balanced during the cold and flu season.

Read the full study here
READ MORE