https://fogcheck.nitre.org/ Evidence audits of nootropics, brain fog causes, and focus supplements, with verdicts on what the research actually shows. en https://fogcheck.nitre.org/articles/brain-fog-and-gut-health/ https://fogcheck.nitre.org/articles/brain-fog-and-gut-health/ A review of the evidence connecting gut health to cognitive function, including the gut-brain axis, probiotics for cognition, and what the research actually supports for brain fog. Thu, 10 Sep 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/racetams-for-cognition/ https://fogcheck.nitre.org/articles/racetams-for-cognition/ A review of the clinical evidence on racetam nootropics including piracetam, aniracetam, and noopept for cognitive function. What the trials show and what they do not. Mon, 17 Aug 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/phosphatidylserine-for-memory/ https://fogcheck.nitre.org/articles/phosphatidylserine-for-memory/ A review of the clinical evidence on phosphatidylserine (PS) for cognitive function, including the important difference between bovine and soy-derived sources and what the FDA qualified health claim actually says. Fri, 24 Jul 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/alcar-for-cognition/ https://fogcheck.nitre.org/articles/alcar-for-cognition/ A review of the clinical evidence on acetyl-L-carnitine (ALCAR) for cognitive function, including meta-analyses, populations studied, and what the evidence supports. Tue, 30 Jun 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-and-depression/ https://fogcheck.nitre.org/articles/brain-fog-and-depression/ How depression causes cognitive symptoms, what the research shows about 'depressive brain fog,' and what treatment does (and does not) resolve. Sat, 06 Jun 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-and-sleep-deprivation/ https://fogcheck.nitre.org/articles/brain-fog-and-sleep-deprivation/ How sleep deprivation causes brain fog, what the research shows about cognitive effects of poor sleep, and what actually helps. Wed, 13 May 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-and-menopause/ https://fogcheck.nitre.org/articles/brain-fog-and-menopause/ How hormonal changes during perimenopause cause brain fog, what the research shows about cognitive decline, and what treatments and strategies the evidence supports. Sun, 19 Apr 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/modafinil-for-focus/ https://fogcheck.nitre.org/articles/modafinil-for-focus/ A review of the clinical evidence on modafinil for cognitive function, including its approved uses, off-label nootropic use, and what the research supports in healthy adults. Thu, 26 Mar 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/alpha-gpc-for-focus/ https://fogcheck.nitre.org/articles/alpha-gpc-for-focus/ A review of the clinical evidence on alpha-GPC (choline alfoscerate) for cognitive function, including what the trials actually tested and who they tested it on. Mon, 02 Mar 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/bacopa-monnieri-for-memory/ https://fogcheck.nitre.org/articles/bacopa-monnieri-for-memory/ A review of the clinical evidence on bacopa monnieri for cognitive function, including meta-analyses, study populations, side effects, and what the research supports. Fri, 06 Feb 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/omega-3-and-brain-function/ https://fogcheck.nitre.org/articles/omega-3-and-brain-function/ A review of the clinical evidence on omega-3 fatty acids (DHA and EPA) for cognitive function and brain fog, including which populations benefit and what the research supports. Tue, 13 Jan 2026 00:00:00 GMT https://fogcheck.nitre.org/articles/creatine-for-cognition/ https://fogcheck.nitre.org/articles/creatine-for-cognition/ A review of the clinical evidence on creatine supplementation for cognitive function, including when it works, for whom, and what the research actually supports. Sat, 20 Dec 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-and-anemia/ https://fogcheck.nitre.org/articles/brain-fog-and-anemia/ How iron-deficiency anemia causes brain fog, which blood tests to ask for, and what the evidence says about treatment and cognitive recovery. Wed, 26 Nov 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-and-thyroid/ https://fogcheck.nitre.org/articles/brain-fog-and-thyroid/ How an underactive thyroid causes brain fog, how it's diagnosed, and what treatment looks like. Includes subclinical hypothyroidism and when to push for testing. Sun, 02 Nov 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-after-covid/ https://fogcheck.nitre.org/articles/brain-fog-after-covid/ A review of the evidence on post-COVID brain fog, including how common it is, what causes it, how long it lasts, and what treatments are being studied. Thu, 09 Oct 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-supplements-ranked/ https://fogcheck.nitre.org/articles/brain-fog-supplements-ranked/ A ranked comparison of brain fog supplements based on clinical evidence quality, including caffeine, creatine, bacopa, lion's mane, omega-3, and more. Mon, 15 Sep 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/caffeine-l-theanine-for-focus/ https://fogcheck.nitre.org/articles/caffeine-l-theanine-for-focus/ A review of the clinical evidence on combining caffeine with L-theanine for focus, attention, and brain fog, including study sizes, doses, and what the research supports. Fri, 22 Aug 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/nootropics-what-the-evidence-supports/ https://fogcheck.nitre.org/articles/nootropics-what-the-evidence-supports/ A systematic review of the nootropic supplement market, grading each category by evidence quality. Covers caffeine, L-theanine, creatine, lion's mane, bacopa, racetams, and more. Tue, 29 Jul 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/lions-mane-for-brain-fog/ https://fogcheck.nitre.org/articles/lions-mane-for-brain-fog/ A review of the clinical evidence on lion's mane (Hericium erinaceus) for cognitive function and brain fog, including study sizes, populations, and what the research does and does not support. Sat, 05 Jul 2025 00:00:00 GMT https://fogcheck.nitre.org/articles/brain-fog-causes/ https://fogcheck.nitre.org/articles/brain-fog-causes/ A diagnostic checklist of the most common and treatable causes of brain fog, from thyroid disorders to sleep deprivation, and why identifying the cause matters more than any supplement. Wed, 11 Jun 2025 00:00:00 GMT