of l-carnitine | Metabolic Health Supplement L-Carnitine –

Remethylation of homocysteine to methionine mediated by betaine occurs in the liver and kidney, whereas the vitamin B12-dependent pathway is present in most tissues [3]

Shields, C

These astrocytes are, however, the preferential site for glucose uptake from the blood, as well as having projections in peri-synaptic areas of neurons, providing close interaction with neuronal elements and acting as a cellular barrier between blood and neurons

And I think its kind of been f*ed around with by the mainstream media reporting on these sort of ancient narratives

Decreasing utilization for postoperative radiation therapy in locoregionally advanced medullary thyroid cancer