In actual fact, in a current episode of the mindbodygreen podcast, Bredesen explains that dangerously low ranges of vitamin D [i.e., 25(OH)D serum test results at or below 20 ng/ml—the clinical cutoff for vitamin D deficiency] is among the principal contributing components of cognitive decline he sees in his sufferers.
“It’s surprisingly frequent to see folks are available with cognitive decline and their vitamin D degree is nineteen or 20 [ng/ml],” he shares.
How did these people turn out to be vitamin D poor within the first place? In accordance with Bredesen, it’s a mixture of life-style habits and dietary decisions: “They’re dwelling indoors, they’re not getting out sufficient, they’re not taking vitamin D, or they’re not absorbing the vitamin D they’re taking.”
Whereas getting open air and spending a while within the solar—safely, after all—is all the time really helpful, the solar isn’t a traditionally dependable supply of vitamin D. (And for the file, weight-reduction plan isn’t both!)
So, we’re left with supplementation. However as Bredesen acknowledged, some individuals are taking vitamin D dietary supplements and seeing no enchancment to their D ranges—or their cognitive operate.