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The role of magnesium and potassium in sustaining optimal neuronal activity and cognitive brain function
Dietary Supplements
Nutritional Science
Brain Function
Electrolytes
Performance
Magnesium
Laura Schneider
Author
2026-09-24
Date
2 min. read
article.read_time
3
Chapters
An examination of key aspects regarding the impact of these electrolytes on neurotransmission, synaptic function, and overall nervous system performance
Magnesium
It's a very important ingredient for our body. It'll need to convert carbohydrates, proteins, lipids, and enzyme synthesis and the proper functioning of the brain. It is also essential for proper neural conduction. Its deficiency causes the lining to shrink, the eyelids to shake. The lack of magnesium in the body is also manifested by nail fractures, hair loss and night sweats. However, excess magnesium in this body is very rare. The source of this element is green leafy vegetables, such as spinach, parsley, or broccoli, which owe its color to magnesium.
Potassium
It's responsible for maintaining our body's water supply, maintaining proper pressure in our cells, regulating nerve and muscle function. It also helps to oxygenate the brain. Potassium is very important for our body, so we should consume it in adequate amounts. Its deficiency causes muscle weakness, decreased concentration, drowsiness and thirst. The sources of potassium are canned foods, meat and fish products, bananas, peaches, potatoes, porridge, nuts, and legumes.
Magnesium and potassium affect how our brains work
It's important to remember that magnesium and potassium are much better absorbed from food. During a difficult time that requires intense mental effort, it's good to incorporate potash-rich foods into your diet. To get the right amount of potash, you need to eat potatoes, which are best cooked in sweatpants (with skin). You can also make a potato salad that's only added to peaches, bananas and nuts.
