other · for brain fog
Beetroot (Dietary Nitrate)
More blood flow to the brain would be expected to sharpen thinking. That is the theory.
Say that in clinical terms
Proposed nitric-oxide-mediated increase in cerebral blood flow, which would be expected to support attention and processing speed if the mechanism translated into cognitive benefit.
How strong is the research?
No Benefit evidence
No significant change in working memory or information processing speed.
Low-quality evidence
2 papers read, 2 against.
Tested as: same trials as above: acute chewable beetroot tablets (45-82.5 mg nitrate, with vitamin C/betaine) and 13-week pure beetroot juice (70-140 mL/day) in older adults
How much to take
45–140 mg