Axons are usually surrounded by a fatty substance called myelin. Myelin allows action potentials to propagate quickly from one neuron to another, allowing for rapid signal transmission. It is a critical part of the nervous system and it's absence has devastating effects, as seen in conditions such as multiple sclerosis.
Omega 3 Fats & Vitamin D as Vitamins for Hearing. The high levels of omega 3 fats and Vitamin D generally found in fish, such as salmon, tuna, trout or sardines, can have highly positive effects on hearing loss. Studies have shown that adults who ate fish twice a week had a 42% lower chance of facing age-related hearing loss than non-fish eaters.
Dietary supplementation with vitamins that have antioxidant capabilities can help protect the hair cells of the cochlea. One animal study showed that a 35-day pretreatment regimen of vitamin C may be able to protect against noise-induced hearing loss (McFadden 2005). Similarly, supplementing animals with certain forms of vitamins A and E have shown significant protective effects (Hou 2003; Ahn 2005).