A deficiency in several nutrients could potentially contribute to brain fog, including vitamin D, vitamin B12, iron, and omega-3 fatty acids. Low levels of magnesium, vitamin C, and choline may also cause brain fog, but more research is needed.
Only magnesium L-threonate has been shown to have a high affinity for the brain and have an effect on memory, learning, and cognitive function.
Vitamin D can improve brain health, reducing symptoms of brain fog. The brain treats vitamin D as an antioxidant, leading to improved cognitive function, more melatonin production, and hormone control.
High doses of magnesium from supplements or medications can cause nausea, abdominal cramping and diarrhea. In addition, the magnesium in supplements can interact with some types of antibiotics and other medicines.
Nassar says that taking a magnesium supplement every day likely isn't unsafe for most people. Just be sure you're not taking too much magnesium. The maximum dietary allowance for most adults is around 400 mg or less.
Magnesium plays many crucial roles in the body, such as supporting muscle and nerve function and energy production. Low magnesium levels usually don't cause symptoms. However, chronically low levels can increase the risk of high blood pressure, heart disease, type 2 diabetes and osteoporosis.
Brain fog could be a sign of early-onset cognitive decline. Other medical causes. Anemia, multiple sclerosis, diabetes, thyroid issues, and various other health conditions can also affect your brain functions.
Staying physically active and keeping a good diet have many health benefits, and that is no different when it comes to brain fog. Studies have shown that getting regular exercise and eating a diet high in vegetables, lean proteins and whole grains can reduce cognitive decline.
Commonly referred to as brain fog, slow cognition or difficulty with concentration and memory can all indicate magnesium deficiency. Magnesium is an essential nutrient for the brain, so without it the brain cannot perform as well.
From a neurological standpoint, magnesium plays an essential role in nerve transmission and neuromuscular conduction. It also functions in a protective role against excessive excitation that can lead to neuronal cell death (excitotoxicity), and has been implicated in multiple neurological disorders.
Magnesium begins to take effect after one week of consistent supplementation.
“We need to find the perfect balance that resides in the middle.” While too little vitamin D can cause brain fog, weakness, and frequent infections, taking too much in supplement form (overdosing on vitamins from food is unlikely) can cause dangerous adverse effects, including kidney failure, she explained.
Low iron intake resulting from diet and accelerated iron loss, which occurs through bleeding or breastfeeding, are the main causes of iron deficiency. The first symptoms of iron deficiency anemia tend to be neurological resulting in brain fog and fatigue.
Brain fog can be a symptom of a nutrient deficiency, sleep disorder, bacterial overgrowth from overconsumption of sugar, depression, or even a thyroid condition. Other common brain fog causes include eating too much and too often, inactivity, not getting enough sleep, chronic stress, and a poor diet.
You can help yourself recover, because brain fog improves with healthier lifestyle choices. The "basics" are eating healthier, getting enough sleep and rest, and increasing physical activity (gradually). Reducing stress is also important.
While spacing out can simply be a sign that you are sleep deprived, stressed, or distracted, it can also be due to a transient ischemic attack, seizure, hypotension, hypoglycemia, migraine, transient global amnesia, fatigue, narcolepsy, or drug misuse.
Medical conditions. Medical conditions associated with inflammation, fatigue, or changes in blood glucose level can also cause mental fatigue. For example, brain fog is a symptom of chronic fatigue syndrome, which involves persistent fatigue for a prolonged period of time, according to 2020 research .
How long does brain fog last after COVID-19 is treated? The good news is that the vast majority of patients with post-COVID-19 brain fog recover completely over the course of 6 to 9 months.
People with diabetes, intestinal disease, heart disease or kidney disease should not take magnesium before speaking with their health care provider. Overdose. Signs of a magnesium overdose can include nausea, diarrhea, low blood pressure, muscle weakness, and fatigue. At very high doses, magnesium can be fatal.
The mineral supplement may be unsafe for people who take certain diuretics, heart medications, or antibiotics ( 1 ). Most people who take magnesium supplements don't experience side effects, but magnesium can cause gut-related issues such as diarrhea, nausea, and vomiting, especially when used in large doses ( 2 ).
One study of older adults with insomnia found that magnesium supplementation at a dose of 500 milligrams daily for eight weeks helped them fall asleep faster, stay asleep longer, reduced nighttime awakenings, and increased their levels of naturally circulating melatonin.
Therefore, magnesium supplements can be taken at any time of the day, as long as you're able to take them consistently. For some, taking supplements first thing in the morning may be easiest, while others may find that taking them with dinner or just before bed works well for them.