ANSWER

Vitamin D

Vitamin D receptors are widespread in brain tissue, and it has shown neuroprotective effects. Study showed that low Vitamin D concentrations may increase the risk of cognitive decline (Norman, 2008).

Vitamin K

Vitamin K is an important nutrient for nervous system. It supports important roles in brain and cognition. Besides, it participates in the synthesis of sphingolipids in brain (Ferland, 2012).

Magnesium

Study showed that Magnesium helps in improving learning and memory functions. Inadequate levels of magnesium may lead to impaired cognitive function and faster deterioration of memory in aging humans (Slutsky et al., 2010; Chens et al., 2014).

References

Chen, H. Y., Cheng, F. C., Pan, H. C., Hsu, J. C. & Wang, M. F. (2014). Magnesium enhances exercise performance via increasing glucose availability in the blood, muscle and brain during exercise. Plos One, 9(1).

Ferland, G. (2012). Vitamin K and the Nervous System: An Overview of its Actions. Advances In Nutrition, 3(2), 204-212. https://doi.org/10.3945/an.111.001784

Norman, A. (2008). From vitamin D to hormone D: fundamentals of the vitamin D endocrine system essential for good health. The American Journal Of Clinical Nutrition, 88(2), 491S-499S. https://doi.org/10.1093/ajcn/88.2.491s.

Slutsky, I. Abumaria, N., Wu, L. J., Huang, C., Zhang, L., Li, B., Zhao, X., Govindarajan, A., Zhao, M. G., Zhuo, M., Tonegawa, S. & Liu, G. (2010). Enhancement of Leaning and Memory by elevating brain magnesium. Elsevier, 165-177. https://doi.org/10.1016/j.neuron.2009.12.026