Omega-3 for Brain Function: What the Evidence Shows
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.
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Creatine for Cognition: What the Evidence Shows
A review of the clinical evidence on creatine supplementation for cognitive function, including when it works, for whom, and what the research actually supports.
Brain Fog and Anemia: What to Know
How iron-deficiency anemia causes brain fog, which blood tests to ask for, and what the evidence says about treatment and cognitive recovery.
Brain Fog and Thyroid: What to Know
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.
Brain Fog After COVID: What the Evidence Shows So Far
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.
Brain Fog Supplements Ranked by Evidence
A ranked comparison of brain fog supplements based on clinical evidence quality, including caffeine, creatine, bacopa, lion's mane, omega-3, and more.
Caffeine and L-Theanine for Focus: What the Evidence Shows
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.
Nootropics: What the Evidence Actually 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.
Lion's Mane for Brain Fog: What the Evidence Shows
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.
What Causes Brain Fog? The Diagnostic Checklist Before You Buy Anything
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.