NutriStack
Symptom·Cognitive·Reviewed May 30, 2026
Supplements for Brain fog.
When brain fog is the complaint, these are the supplements most often associated with it in the NutriStack library, ranked by how directly each one targets it and by the strength of the evidence.
Ranked by relevance, top first.
Relevance reflects how directly each supplement targets this symptom in the NutriStack map. Evidence is the supplement’s own rating. Open any name for the full profile.
- 01Magnesium L-ThreonateModerate89% match
Provides a brain-focused magnesium form often used when mental fatigue and poor working memory cluster together.
SuggestedMagnesium L-threonate - 02Vitamin B12Strong86% match
Correcting low B12 can improve attention, word finding, and mental energy when deficiency is present.
SuggestedMethylcobalamin - 03IronStrong82% match
Low iron or ferritin reduces oxygen delivery and can impair focus and mental stamina.
SuggestedIron bisglycinate - 04Fish OilModerate74% match
DHA-rich omega-3 intake supports neuronal membrane function and cognitive resilience.
SuggestedHigh-DHA triglyceride fish oil - 05Lion's ManeLimited72% match
Lion's mane is used for neurotrophic and cognition-focused support, though the human data is still developing.
SuggestedDual extract lion's mane - 06Alpha-GPCLimited68% match
Provides choline for acetylcholine synthesis, which can support attention and mental processing speed.
SuggestedAlpha-GPC capsules - 07Acetyl-L-CarnitineModerate64% match
Supports mitochondrial energy metabolism and is commonly used when low mental energy overlaps with fatigue.
SuggestedAcetyl-L-Carnitine HCl
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These rankings come from the same library that powers the NutriStack app. Open any supplement for full dosing, forms, interactions, and citations.