Over 70% of Americans have suboptimal vitamin D levels, even in sunny states like Florida and California. Most families are taking only 400 IU daily when research shows we need 2,000-5,000 IU for optimal immune function, brain development, and disease…
Over 70% of Americans have suboptimal vitamin D levels, even in sunny states like Florida and California. Most families are taking only 400 IU daily when research shows we need 2,000-5,000 IU for optimal immune function, brain development, and disease…