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Supplements Guide

Deborah Kan

Created on October 13, 2025

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Transcript

The guide to

Brain Health Supplements

What the science says about popular supplements

Understanding the supplement industry

Making informed choices for brain health

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What’s behind the brain health supplement boom?

Memory lapses, brain fog, and worries about cognitive decline push millions of people to look for quick fixes. And they may seek out those supposed fixes in their pharmacy's vitamins and supplements aisle. From fish oil and turmeric to pricey nootropic blends, labels make bold claims about memory, focus, clarity, and even preventing dementia. But how much of that is backed by real science?

Terms to know

Supplements

Nootropics

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A regulatory “Wild West”

The brain health supplement market is booming, worth billions of dollars globally. Unlike prescription drugs, supplements aren’t subject to approval by the FDA. That means supplement makers can make big claims about safety or efficacy — and they don’t need to prove those claims before going to market.
Some ingredients may have genuine benefits. Others may be useless, or even harmful. And because companies aren’t regulated, their products might not contain the exact ingredients or dosages listed on their label.
A note on interpreting labels

“Supplement manufacturers are legally allowed to make misleading claims that may not have the greatest degree of scientific integrity.”

Joanna Hellmuth Neurologist and Alzheimer’s and dementia researcher, UCSF

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Where do supplements fit in a healthy diet?

Nutritionists will tell you to, when possible, get nutrients from food first. Supplements should only fill specific gaps, not replace a healthy diet. Here's why:
Nutrients in whole foods are better absorbed and balanced than in pill form.
Supplements may contain misleading labels, inconsistent doses, or even harmful additives.

Most studies on brain health point to overall dietary patterns, like the Mediterranean or MIND diet, not isolated ingredients.

Think of supplements in a bottle as “maybe” helpers — but food as the foundation.

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A deeper dive into popular supplements for brain health: What are their uses, and what's the science behind them?

Multi-vitamins

Taurine

Turmeric

Omega-3

Creatine

CoQ10

Creatine

Serine

Ginseng

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Turmeric

What it is: A spice used in cooking and Ayurveda for over 4,000 years. Its active compounds are called curcuminoids.

If you want more turmeric in your diet, get it from:

  • Curry powder
  • Turmeric spice
  • Golden milk

Claims & beliefs

Safe in foods, but turmeric supplements aren’t proven to boost brain health.

“While turmeric does indeed act as an anti-inflammatory, many of the health benefits caused by this effect have only been proven in the lab (using cells) or in animals.” –Duane Mellor, Aston Medical School, UK

What the science says

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Creatine

What it is: A compound made in the body and obtained from diet, essential for muscle and energy metabolism.

Creatine

If you want more creatine in your diet, get it from:

  • Red meat
  • Fish

Claims & beliefs

No need for supplements if you eat a protein-rich diet. Brain benefits are unproven.

What the science says

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Serine

What it is: An amino acid found naturally in the body and diet, in two forms: L-serine and D-serine.

If you want more serine in your diet, get it from:

  • Soybeans, peanuts, almonds, walnuts, eggs, chickpeas, lentils, meat, and shellfish

Experts urge caution — serine supplements are not recommended for brain health.

Claims & beliefs

“Anyone looking to recommend or take serine to mitigate Alzheimer’s symptoms should exercise caution.” –Riccardo Calandrelli, University of California, San Diego

What the science says

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Taurine

What it is: An amino acid made in the body; widely known as an ingredient in energy drinks.

If you want more taurine in your diet, get it from:

  • Meat
  • Fish

Claims & beliefs

Taurine from food sources is sufficient. Supplement claims for brain health are not backed by solid human evidence.

What the science says

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Fish oil & omega-3 fatty acids

What it is: Essential polyunsaturated fats, including ALA (plants), EPA (seafood), and DHA (seafood). Critical for brain and cell function.

If you want more omega‑3 in your diet, get it from:

  • Fatty fish (salmon, mackerel, sardines, anchovies), walnuts, flaxseed, chia, eggs

Claims & beliefs

Eating fish and omega-3–rich foods is beneficial. Supplements may not deliver the same effect.

What the science says

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Multivitamins

What it is: Packaged blends of vitamins (e.g. A, B-complex, C, D) and minerals (e.g. calcium, iron, magnesium, zinc).

If you want more multivitamins in your diet, get it from:

  • Balanced diet with fruits, vegetables, grains, proteins, and dairy

Claims & beliefs

What the science says

At best, benefits are small. Not a substitute for a nutrient-rich diet.

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Ginseng

What it is: The root of plants in the Panax genus (most commonly Asian ginseng and American ginseng). It has been used in traditional medicine for centuries. In China and Korea, people believe it supports energy, stamina, and longevity. In North America, it was traditionally used by Indigenous communities for colds, fatigue, and general wellness.

If you want more ginseng in your diet, get it from:

Claims & beliefs

  • Ginseng teas, extracts, or in traditional soups and tonics

What the science says

Ginseng has cultural importance but is not proven to support brain health or prevent dementia.

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Coenzyme Q10 (CoQ10)

What it is: An antioxidant compound made in the body, essential for producing energy and protecting against cellular damage.

If you want more CoQ10 in your diet, get it from:

  • Red meat and fish

Claims & beliefs

No need for supplements because the body usually produces most of what it needs from fatty fish, legumes, nuts and seeds. Brain benefits are unproven.

What the science says

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Talk to your doctor before taking supplements

Always bring supplements (including vitamins, herbs, and “natural remedies”) up at your checkups — even if you bought them over the counter.

Questions to ask your doctor

Why it matters

  • Supplements are not regulated like drugs, so quality and safety can vary, and labels may not reflect what’s actually inside.
  • What’s safe for one person may not be safe for another (age, health conditions, medications all matter).
  • Your healthcare provider can help you weigh risks vs. benefits based on your personal health.

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Lifestyle changes for brain health

Still looking for a brain health boost? The stronger evidence lies with lifestyle.

  • Decades of research show that diet, exercise, sleep, and social connection have the biggest impact on brain health and lowering dementia risk.
  • Large studies consistently link these habits with better cognition and slower decline.
  • Lifestyle approaches are also part of prevention strategies recommended by Alzheimer’s and neurology experts.

Experts say that if you want to invest in your brain health, start with food, movement, sleep, and social engagement. If you’re taking supplements, experts say to think of them as something extra — not as a replacement for science-backed, brain healthy habits.

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Want to keep learning?

Visit

beingpatient.com

for the latest news and information on brain health and Alzheimer's disease

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Nootropics The term "Nootropics" refers to both prescription drugs and over-the-counter supplements that are marketed to boost memory, focus, creativity, and other aspects of cognitive function.

Supplements The term "supplements" refers to non-medical products like vitamins, minerals, herbs, or amino acids in the form of pills, powders, or drinks, and marketed to “support” health. “Brain health supplements” is a category that claims to help with memory, focus, mood, or protection against cognitive decline.

Should I take this supplement?

Is it necessary for me, or am I already getting it from my diet?

Is there credible research, or is it mostly marketing hype?

What’s the evidence?

Can it interact with my medications?

Even “natural” products can have dangerous drug interactions.

Are there safer dietary alternatives?

Can I just get this from food instead?

How do I monitor for side effects?

What symptoms should I watch out for?