By GlobalMHSummit.com Research Team
Short answer: an ad can describe how you feel, say what a product is “for,” and hint at proof, all in a few seconds. Your job is to pull those three things apart. A symptom list in an ad is not a diagnosis. A “research-backed” line is not evidence until you can see what was studied. And some situations call for a person, not a product, no matter what the ad says.
This guide gives you a plain-language worksheet you can run on any mood or cognition supplement ad. It will not tell you whether a product is right for you, and it does not recommend or review any product. It helps you slow down, sort what you are reading, and decide what to do next.
If you are in crisis or thinking about suicide, call or text 988 or start a chat online to connect with a trained crisis counselor. In a life-threatening situation, call 911 or go to the nearest emergency room. (NIMH, Help for Mental Illnesses, checked October 5, 2026.)
Why these ads are easy to misread
Many supplement ads open with a list of feelings: foggy, low, anxious, forgetful, “not like yourself.” Those feelings are real and common, and they can have many causes. An ad cannot tell which cause applies to you. Reading the list and thinking “that's me” can feel like a diagnosis, but it is only recognition. A qualified health professional who knows your history is the right person to evaluate what is going on.
The ad then connects that feeling to a product, usually with words like “supports,” “promotes,” or “boosts.” The worksheet below keeps three questions separate: what is the ad saying about symptoms, what is it saying about evidence, and what care might actually fit?
Step 1: Sort the symptom language
Read the ad once and underline every feeling or experience it names. Then ask:
- Is the ad naming a condition? Words like “depression,” “anxiety disorder,” “ADHD,” “dementia,” or “Alzheimer's” name medical conditions. The FDA states that a product sold as a dietary supplement and represented explicitly or implicitly for treatment, prevention, or cure of a specific disease or class of diseases meets the definition of a drug (FDA, Questions and Answers on Dietary Supplements, checked October 5, 2026). If an ad hints strongly at a disease, treat that as a reason to look more carefully.
- Is the ad using everyday words? “Brain fog,” “low mood,” “stress,” and “focus” are everyday terms, not diagnoses. They describe experiences, and many things can sit behind them, which is exactly why guessing from an ad is risky.
- Is the ad pushing you to decide quickly? Countdown timers, “limited supply” banners, and frightening stories about decline are sales techniques. They are a cue to slow down, not information about your health.
Write down, in your own words, what you are actually experiencing: what it is, how long it has gone on, and how it affects your day. That note is more useful to a clinician than any ad checklist. Our guide on preparing for a mental health conversation walks through how to organize those notes.
Step 2: Sort the evidence language
Next, underline every phrase that sounds like proof: “clinically studied,” “research-backed,” “scientifically formulated,” “doctor recommended,” “thousands of happy customers.” Then work through these questions:
- Was the finished product studied, or only an ingredient? A study on one ingredient, at one dose, is not a study of the product on the shelf. If the ad does not say, you cannot tell.
- Who was studied, and for what? A study in a different group of people, or about a different outcome than the one the ad implies, may not apply to you.
- What was measured? Some studies of mood or well-being rely on questionnaires people fill out themselves. Our article on which measure a well-being study used explains what to check before you trust a headline.
- Can you find the study yourself? A real citation names the authors, journal, and year. “Studies show” with no source is a claim, not evidence.
- Are testimonials doing the work of evidence? One person's story, however sincere, cannot show that a product caused the change.
It also helps to know what regulators do and do not do. The FDA states that it does not have the authority to approve dietary supplements before they are marketed (FDA, Questions and Answers on Dietary Supplements). For structure/function claims, which describe how a nutrient or ingredient is intended to affect the normal structure or function of the body, the FDA says the claims are not pre-approved, but the manufacturer must have substantiation that the claim is truthful and not misleading. When a supplement label carries one, it must also include a disclaimer that the FDA has not evaluated the claim and that the product is not intended to diagnose, treat, cure, or prevent any disease (FDA, Structure/Function Claims, checked October 5, 2026). In plain terms, the small-print disclaimer is telling you the big-print claim has not been evaluated by the FDA. The FDA also has the authority to take action against any adulterated or misbranded dietary supplement product after it reaches the market (FDA, Dietary Supplements, checked October 5, 2026).
For one example of how a single product page's claims can be set against what is documented, see this site's CogniHoney brain health claims-versus-evidence review. It is offered as an illustration of the questions above, not as a reason to buy or avoid anything.
Step 3: Sort the care question
The third question has nothing to do with the product: what kind of help fits what I am experiencing?
Get help right away if
- You are in crisis or thinking about suicide. Call or text 988, or start a chat online, to connect with a trained crisis counselor. In a life-threatening situation, call 911 or go to the nearest emergency room (NIMH).
- You think a supplement has caused a harmful effect or illness. The FDA says the first thing to do is contact or see your health care provider immediately (FDA). You or your provider can then report it to the FDA through its Safety Reporting Portal.
Talk to a professional soon if
- The feelings, or changes in memory or thinking, are lasting, getting worse, or getting in the way of work, school, relationships, or daily life.
- You are taking prescription medicine, or you have a health condition, and you are thinking of adding a supplement. The FDA advises talking to your doctor, pharmacist, or other health care professional before deciding to purchase or use a dietary supplement, and notes that some supplements might interact with medicines or other supplements (FDA).
- You are tempted to stop or change a treatment because of something you read in an ad. Make that decision with the clinician who prescribed it.
NIMH notes that a primary care provider can perform an initial mental health screening and refer you to a mental health professional, and that treatment for mental illnesses usually includes therapy, medication, or a combination of the two (NIMH, Help for Mental Illnesses). NIMH is a research funding agency and says it cannot provide medical advice or provider referrals, so use its page as a map to services, not as a diagnosis.
The claim-check worksheet
Copy this into a note, answer it for any ad that catches your attention, and bring it to your next appointment if you decide to ask a professional.
- What the ad says I feel: list the exact words (for example, “foggy,” “low,” “forgetful”).
- What I actually experience: in my own words, how long, how often, and how it affects my day.
- Does the ad name or hint at a medical condition? Yes or no. If yes, remember that the FDA treats a supplement represented for the treatment, prevention, or cure of a specific disease as a drug.
- What proof does the ad point to? Quote it exactly (“clinically studied,” “research-backed,” a testimonial).
- Was the finished product studied, or only an ingredient? If the ad does not say, write “not stated.”
- Can I find the study myself? Authors, journal, year. If I cannot, write “no source.”
- Is there pressure to act fast? Timers, “limited supply,” or fear-based language.
- What small print is there? Look for the FDA disclaimer, and note which claim it sits next to.
- Which care level fits what I wrote in item 2? Right now (988, 911, emergency room), soon (primary care provider or other health professional), or ongoing self-monitoring while I keep notes.
- My question for a professional: write the one question I most want answered, including what I am already taking.
What this guide cannot do
This worksheet cannot tell you whether you have a condition, whether a particular supplement is safe or useful for you, or whether it will interact with something you take. It does not evaluate any product's formula, price, or refund policy. Even well-run studies describe groups of people, not you. If the worksheet leaves you worried, that is a good reason to talk with a qualified professional, not a reason to keep searching ads.
Sources checked
- National Institute of Mental Health, Help for Mental Illnesses (988 and 911 guidance, primary care screening and referral, treatment types, NIMH not providing medical advice). Checked October 5, 2026.
- U.S. Food and Drug Administration, Dietary Supplements (FDA authority to act against adulterated or misbranded products after they reach the market). Checked October 5, 2026.
- U.S. Food and Drug Administration, Structure/Function Claims (claims not pre-approved, substantiation requirement, disclaimer wording). Checked October 5, 2026.
- U.S. Food and Drug Administration, Questions and Answers on Dietary Supplements (no premarket approval authority, disease-claim drug definition, talking to a health care professional, adverse event reporting). Checked October 5, 2026.
This article is for general educational purposes and is not medical advice. It does not diagnose, treat, or recommend any product. See our Medical Disclaimer and Editorial Standards.