Skip to content
Dr. Grey AI

Protocol · Neurological

Dementia & Cognitive Decline Protocol

Omega-3 DHA and Phosphatidylserine are the core of this stack, with 4 supporting supplements. Each row gives the amount the protocol lists and the grade our evidence database holds for that supplement in Dementia & Cognitive Decline.

We are re-verifying the studies cited on protocol pages; only confirmed citations are shown.

The stack

6 supplements · 1 graded · 2 confirmed studies

Amount listed in this protocol; not a recommendation.

Supplements in the Dementia & Cognitive Decline protocol, with the amount the protocol lists, the grade on file and confirmed studies
GradeSupplementAmount listedWhy it’s in the stackEvidence on fileShop
Primary stackThe core of this protocol
Omega-3 DHAAmount listed: 1,000–2,000 mg DHA daily

Primary structural fatty acid in brain; supports neuronal membrane integrity and reduces neuroinflammation

Not graded yet
PhosphatidylserineAmount listed: 300 mg daily

Membrane phospholipid that supports neurotransmitter function and neuronal signaling

  • Cognitive Decline: improves
Not graded yet

Confirmed studies for Phosphatidylserine (titles as PubMed lists them)

Supporting stackListed as additions to the core
Lion's Mane MushroomAmount listed: 1,000–3,000 mg daily

Contains hericenones and erinacines that stimulate nerve growth factor (NGF) synthesis

Not graded yet

Confirmed studies for Lion's Mane Mushroom (titles as PubMed lists them)

Citicoline (CDP-Choline)Amount listed: 500–1,000 mg daily

Provides choline for acetylcholine synthesis and supports phosphatidylcholine production

Not graded yet
Bacopa MonnieriAmount listed: 300–450 mg daily (standardized to 50% bacosides)

Adaptogenic herb that enhances synaptic communication and has antioxidant effects

Not graded yet
Vitamin E (mixed tocopherols)Amount listed: 400–800 IU daily

Antioxidant that protects brain lipids from oxidation; may slow functional decline

  • Alzheimer's Disease Risk: studied
  • Cognition: improves
Grade D for Alzheimer's Disease Risk3 studies · 820 people

Shop the evidence-backed picks

Support alongside medical care. These supplements are not a treatment for Dementia & Cognitive Decline. If you are being treated for it, talk to your clinician before adding one: supplements can interact with medicines.

Fullscript collectionFocus and memory: evidence-graded picksOpen on Fullscript

Or shop one supplement

Each opens third-party tested products, matched to the dose above where we can.

  • Grade D

We earn from purchases made in our Fullscript store, and links to Fullscript, iHerb or Thorne carry our referral, so we may earn a commission at no extra cost to you. Grades come from the research and never change based on what we earn. Full disclosure

How this protocol works

In plain language

Dementia involves progressive loss of brain cells and connections due to factors like oxidative stress, inflammation, and reduced blood flow. While no supplement can cure dementia, several may support brain health and potentially slow decline.

  • DHA (omega-3) makes up 40% of brain fatty acids. Studies show people with higher DHA levels have slower cognitive decline. It reduces neuroinflammation and supports synaptic function.
  • Phosphatidylserine is a key component of brain cell membranes. It supports neurotransmitter systems and cell-to-cell communication. Multiple studies show modest cognitive benefits.
  • Lion's mane mushroom contains compounds that stimulate nerve growth factor (NGF), which supports neuron survival and growth. A Japanese study showed significant cognitive improvement in mild cognitive impairment.
  • Citicoline provides building blocks for both acetylcholine (memory neurotransmitter) and brain cell membranes. It has decades of research in cognitive support.
  • Bacopa is an Ayurvedic herb that enhances memory and learning, likely through antioxidant effects and enhanced nerve signaling.
  • Vitamin E protects brain fats from oxidation. The TEAM-AD study showed it slowed functional decline in mild-moderate Alzheimer's.

Important: Supplements cannot reverse established dementia. Work with a neurologist for comprehensive care.

Expected timeline: Cognitive supplements typically require 3-6 months for noticeable effects.

Printed from drgrey.ai/protocols/dementia. For education only; not medical advice. Talk to a clinician before starting any supplement.