The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Its roles include clearing amyloid beta plaques and tau buildup, boosting neuron survival via neurotrophic factors like BDNF, and enhancing brain connectivity, particularly when paired with exercise.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
Vitamin D also upregulates a variety of neurotrophic factors including nerve growth factor and um also brain drive neurotrphic factors. So this is helping support neurotransmitters, supporting learning and memory.
So vitamin D can enhance the removal of amalloid beta. This is a protein that's linked to Alzheimer's disease by promoting its elux from the brain. Now I mentioned in that study it was a randomized control trial in people that were giving an 800 IUs of vitamin D a day. People that already had Alzheimer's disease. It lowered their amaloid beta plaque burden.