Vitamin C is well known for its role in immune health, but this nutrient also supports many other important functions in the body, including brain health.Ī study that included 80 healthy adults found that those with adequate blood levels of vitamin C performed significantly better in tests assessing memory, attention, reaction time, and focus than those with low vitamin C levels ( 32).

Supplementing with magnesium may help reduce certain symptoms of brain fog. Having low magnesium levels may negatively affect brain health. Some research suggests that magnesium supplements may also help treat symptoms of anxiety and depression, which may improve symptoms of brain fog related to these common mental health conditions ( 31). Plus, some studies have linked suboptimal magnesium levels with reduced cognitive function and reaction time as well as increased risk of cognitive impairment ( 27, 28).Ī study in 2,466 people ages 60 and up found that those with higher magnesium levels did better on tests of cognitive functions like attention and memory and had lower risks of developing cognitive impairment than those with lower magnesium levels ( 29, 30). Stress can cause memory impairment, poor concentration, and anxiety symptoms ( 25, 26).įor this reason, maintaining optimal magnesium levels through supplementation may help reduce susceptibility to stress and therefore improve stress-related cognitive impairment and brain fog symptoms. Low magnesium levels are common in those who are stressed and can even increase susceptibility to stress ( 24). Many people don’t get enough magnesium in their diet, which may negatively impact brain health and lead to brain fog symptoms such as difficulty concentrating. It’s necessary for many essential body functions, such as enzymatic reactions, energy production, nerve function, and blood pressure regulation ( 23). Magnesium is an essential mineral that’s concentrated in foods like beans, seeds, and spinach. Some research suggests that omega-3 supplements may improve some aspects of cognitive health and therefore help reduce symptoms of brain fog. People who experience anxiety may report symptoms of brain fog because anxiety can negatively affect mood, concentration, and memory ( 21, 22). What’s more, omega-3 supplements may help improve anxiety symptoms. One review of 26 studies suggested that taking omega-3 supplements with EPA concentrations of at least 60% at a dosage of at least 1 gram per day may help treat depressive symptoms ( 20). Omega-3 supplements may also improve depressive symptoms and boost mood, which may help reduce symptoms of brain fog. Studies show that supplementing with the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) may support brain health, including memory, attention, and mood.Ī study including 176 adults with low omega-3 intake found that supplementing with 1.16 grams of DHA per day for 6 months led to improvements in episodic and working memory compared with a placebo ( 18).Īnother study found that treatment with 1.25 grams or 2.5 grams of omega-3 fatty acids per day reduced memory decline in people experiencing loneliness over a 4-month period ( 19). Taking concentrated omega-3 supplements may benefit brain health and improve certain symptoms of brain fog, including difficulties with attention and memory ( 17). Omega-3 fatty acids are well known for their impressive health effects. Supplementation may help improve memory, concentration, and mood in some people, which may help alleviate brain fog.

Some studies show that low vitamin D levels may be linked to brain fog symptoms. This suggests that supplementing with vitamin D may alleviate brain fog, at least to some extent.Īlso, a small study in 42 postmenopausal women who were low in vitamin D found that those who supplemented with 2,000 IU of vitamin D per day for 1 year performed better in learning and memory tests than those who took 600-IU or 4,000-IU doses ( 16). Other studies show that vitamin D supplementation may improve overall mental health - including mood, negative thoughts, and symptoms of anxiety and depression - in certain people ( 14, 15). Research suggests that vitamin D supplements can help increase vitamin D levels and may help improve depressive symptoms, including brain fog ( 9, 10, 11, 12, 13). Vitamin D deficiency is associated with an increased risk of depressive symptoms. People with depression are also more likely to have deficiencies in several nutrients, including vitamin D ( 7, 8). People who have depression or depressive symptoms often experience brain fog symptoms such as poor concentration and memory problems. Having low or deficient vitamin D levels may negatively impact cognitive health and contribute to brain fog symptoms. Vitamin D is a fat-soluble nutrient necessary for immune system function, brain health, and more.

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