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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →Scan for outdated or missing drivers - takes under a minuteDriver Scan →A physician’s five-supplement list includes creatine, omega-3s, magnesium, vitamin B12 and vitamin D. But the list is not proof that these products reliably treat brain fog: the underlying evidence is mixed, often concerns cognition in older adults rather than brain fog, and does not show that taking extra nutrients helps people who already get enough.
Which five supplements did the physician name?
Hindustan Times reported that Dr. Kunal Sood, a Maryland-based anesthesiology and interventional pain physician, shared the list on Instagram on October 1, 2026. The newspaper updated its article on October 2, 2026. It also said the report was based on user-generated social-media content, that it had not independently verified the claims, and that it did not endorse them. Read the Hindustan Times report.
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- Creatine: Sood’s reported rationale is that the creatine-phosphocreatine system is involved in brain energy; the article says studies suggest possible working-memory or cognition benefits under sleep deprivation.
- Omega-3s: The report points to DHA as a component of brain-cell membranes and to EPA and DHA’s role in inflammatory signaling.
- Magnesium: It describes magnesium as supporting energy production and normal nerve function, while noting that early findings on magnesium L-threonate cannot be generalized to every magnesium form.
- Vitamin B12: B12 is needed for normal nerve function, myelin and red blood cell production. A deficiency can cause symptoms such as fatigue and concentration problems; that is different from taking extra B12 when levels are adequate.
- Vitamin D: The report says deficiency may contribute to fatigue and that treating a deficiency may help some people feel cognitively better.
These are the claims attributed to Sood in the report, not independently established conclusions about brain fog.
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The available evidence does not establish this five-supplement list as a reliable treatment for nonspecific brain fog. “Brain fog” can describe different experiences, while much of the cited research measures cognition, cognitive decline or dementia—often in older adults. Those outcomes and populations do not directly answer whether a supplement relieves brain fog across causes and age groups.
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The National Center for Complementary and Integrative Health (NCCIH) says research has not found clear cognitive benefits from multivitamins or high doses of individual vitamins in well-nourished people. Findings on omega-3 and B-vitamin supplements are also mixed or negative in studied older-adult populations. This does not mean a diagnosed deficiency should go untreated: correcting a deficiency is a different question from supplementing beyond adequate levels. NCCIH: Healthy Aging; NIH Office of Dietary Supplements: Omega-3 Fatty Acids; NIH Office of Dietary Supplements: Vitamin B12.
What the evidence says about the five items
Creatine
The reported rationale concerns the brain’s energy system and possible effects on working memory or cognition in sleep-deprived conditions. That is not evidence that creatine treats general brain fog. The sources reviewed do not establish a reliable benefit for that broad symptom or provide a basis for recommending a dose.
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Omega-3s
Studies in older adults do not show a consistent cognitive benefit. In AREDS2, 3,501 older adults with age-related macular degeneration took part in a five-year study; DHA/EPA supplementation did not significantly affect cognitive function. NIH’s National Eye Institute quoted deputy director and clinical deputy director Emily Chew, M.D.: “Contrary to popular belief, we didn’t see any benefit of omega-3 supplements for stopping cognitive decline.” That finding concerns cognitive decline in this study population, not every possible cause of brain fog. National Eye Institute: Omega-3 Supplements No Help in Preventing Cognitive Decline.
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NIH’s Office of Dietary Supplements summarizes the overall findings as showing no effect on cognition in healthy older adults or people with Alzheimer’s disease; possible findings in mild cognitive impairment need confirmation. NIH Office of Dietary Supplements: Omega-3 Fatty Acids.
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Magnesium
The report’s specific caveat is important: early findings for magnesium L-threonate do not establish that other forms have the same effects. Nor do the sources reviewed show that magnesium supplements generally relieve brain fog. A possible benefit from addressing inadequate magnesium intake is not evidence that extra magnesium improves clarity in someone whose intake is already sufficient.
Vitamin B12
B12 deficiency can cause health problems, including symptoms that may affect energy or concentration, so suspected deficiency warrants appropriate medical assessment and treatment. But evidence for B-vitamin supplements as a way to improve cognition in people without a relevant deficiency is not persuasive: NCCIH summarizes a Cochrane review that found no beneficial cognitive effect from B-vitamin supplementation over six to 24 months in the trials it reviewed. That finding does not argue against treating a B12 deficiency. NCCIH: Healthy Aging; NIH Office of Dietary Supplements: Vitamin B12.
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Vitamin D
The reported potential benefit is tied to deficiency: correcting low vitamin D may help some people feel better. That is not proof that vitamin D supplements improve mental clarity in people who are not deficient, or that they treat brain fog from other causes. NCCIH’s broader review finds no clear cognitive benefit from high-dose individual vitamins in well-nourished people. NCCIH: Healthy Aging.
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There is no established ranking of these five for brain fog, and the evidence reviewed does not support choosing a “best” one for that purpose. A more useful distinction is whether there is a diagnosed deficiency or another reason to take a nutrient, versus trying a supplement despite adequate levels.
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- Clarify the reason: Ask a clinician whether symptoms or risk factors warrant evaluation for a deficiency or another health issue, rather than assuming brain fog identifies a particular nutrient gap.
- Keep the claim narrow: Evidence about cognition in older adults, sleep-deprived participants or people with a diagnosed deficiency should not be read as proof of benefit for everyone with brain fog.
- Check the specific product and form: A finding about one formulation, such as magnesium L-threonate, cannot automatically be applied to other forms or products.
- Discuss safety and interactions: Supplements can have side effects and may interact with medicines. Review a product with a qualified health professional, especially if you take medication or have a medical condition.
If you are also weighing other popular “brain” supplements, NCCIH says there is no conclusive evidence that ginkgo prevents or slows dementia or cognitive decline; it notes possible side effects and bleeding risk. Ginkgo is not one of the five supplements in Sood’s reported list. NCCIH: Ginkgo.
What this evidence can—and cannot—tell you
The studies and reviews described here are not direct tests of these five supplements as a group for nonspecific brain fog. They can help separate a plausible nutrient-deficiency issue from broad claims of cognitive enhancement, but they cannot establish that a particular supplement will resolve an individual’s symptoms. The strongest practical conclusion is to identify the cause of persistent symptoms and treat a confirmed deficiency when appropriate, rather than treating the five-item list as a proven remedy.
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