Magnesium is an essential mineral with well-established roles in numerous physiological processes, including nerve transmission, muscle function, and cellular signaling. When considering the "Senses" body system—often defined as vision, hearing, taste, smell, and touch—the scientific evidence linking magnesium directly to sensory function is limited but present. Some studies suggest that magnesium deficiency may play a role in conditions such as migraine with aura (which can involve visual and sensory disturbances), and there is limited evidence for its benefit in preventing or reducing the severity of migraines—an issue that can impact sensory processing. Additionally, there is preliminary research investigating magnesium's role in hearing protection, specifically in noise-induced hearing loss, but these findings are not robust or widely replicated.

There is little direct evidence that magnesium supplementation improves normal sensory function (such as enhancing vision, taste, smell, or touch) in healthy individuals, and it is not widely used for these purposes in traditional medicine. The use of magnesium to support the senses is therefore justified mainly by its indirect effects on neurological function and its potential to mitigate certain sensory-related disorders (e.g., migraines, some hearing issues) rather than direct enhancement or support of sensation. Thus, while there is some scientific rationale, the body of evidence is modest, resulting in a moderate-low rating.