Medical disclaimer

If something is wrong right now

If you have severe symptoms — chest pain, trouble breathing, fainting, an irregular heartbeat, severe abdominal pain, yellowing of the skin or eyes, a spreading rash, confusion, or a seizure — call 911 or go to an emergency department. For a suspected poisoning or overdose anywhere in the United States, call Poison Help on 1-800-222-1222, which is staffed around the clock and free.

Do not use this website, its contact form or its community reviews to get help in an emergency. Nothing here is monitored in real time, and no one reading a submission is in a position to treat you.

Educational information only

Everything on SharpAndLean is general educational and editorial information about products and the research behind them. It is not medical advice, a diagnosis, a treatment plan, or an instruction to start, stop or change any medicine or supplement. Reading the site, subscribing to the newsletter, submitting a community review or writing to us does not create a clinician–patient relationship and does not make anyone here responsible for your care.

Decisions about your body belong to you and the professionals who can actually examine you. Use what you read here to ask better questions, not to replace the conversation.

What a review can and cannot tell you

A review examines a product: what the label discloses, whether the dose matches the research, whether the claims hold up, and where the evidence runs out. That is a question about the product. Whether the product is appropriate for you is a different question, and it depends on your diagnoses, medicines, allergies, kidney and liver function, laboratory results, pregnancy status, age and the rest of your diet — none of which a published page can know.

A score is an editorial conclusion about formulation and evidence quality. It is not a recommendation to take something, and a high score on a well-made product says nothing about whether it is safe or useful in your particular situation. A low score is not a claim that a product is dangerous, only that the evidence or disclosure did not support the claims made for it.

Sumita’s role

Sumita Bhatti’s background as a clinical nutritionist informs the review method and the interpretation of nutrition research. That expertise shapes how evidence is weighed on this site. It does not extend to you personally: her editorial involvement does not turn a public page into an individual consultation, and no clinician–patient relationship arises from reading her work here.

Talk to a professional before you start

Speak with a doctor, pharmacist or appropriately qualified nutrition professional before using a supplement if any of the following apply to you:

• You take any prescription or over-the-counter medicine.
• You have a diagnosed condition, particularly involving the heart, blood pressure, liver, kidneys, thyroid, or mental health.
• You are pregnant, trying to conceive, or breastfeeding.
• You have surgery or a procedure scheduled — many supplements affect bleeding, blood sugar or sedation, and are commonly stopped one to two weeks beforehand.
• You are choosing a product for a child or an older adult taking several medicines.
• You have a history of eating disorders, or the product is marketed for weight loss.

A pharmacist is often the most accessible person on this list, and checking an interaction with one costs nothing.

Interactions are not printed on the front of the box

The most consequential risks in this category are usually invisible at the point of sale. Stimulants stack: the caffeine in a fat burner adds to coffee, tea, pre-workout products and some decongestants, and the total is what your body responds to. Botanical extracts can change how fast the liver clears a drug, which can quietly weaken a prescription rather than cause an obvious reaction. Ingredients that affect clotting matter a great deal if you take an anticoagulant.

None of this appears on a front label, and a Supplement Facts panel lists contents, not consequences. Bring the actual bottle, or a photograph of the full panel, to whoever advises you.

What FDA oversight actually means

Dietary supplements are regulated under the Dietary Supplement Health and Education Act of 1994, which treats them differently from drugs. The FDA does not approve dietary supplements for safety or effectiveness before they go on sale in the way it approves a new drug. Manufacturers are responsible for the safety, manufacturing and labelling of what they sell, and the FDA acts after the fact against products found to be unsafe, adulterated or misbranded. See the FDA’s questions and answers on dietary supplements.

This is why supplement labels carry the sentence: “This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.” That wording is required precisely because the claim above it has not been assessed by a regulator. Read it as the disclaimer it is.

Marketing language borrows regulatory authority it does not have. A phrase such as “FDA-registered facility” means a facility submitted a registration. It is not FDA approval of the product, the formula or the claims. No review on this site guarantees that any product is safe, effective, accurately labelled or free from contamination.

Adulteration and contamination are real risks

Because supplements are not pre-approved, some products reaching consumers contain undeclared pharmaceutical drugs or ingredients not listed on the label. Weight-loss and performance categories have a particularly poor record here. The FDA maintains a searchable Health Fraud Product Database of products cited in its enforcement actions — it is worth searching a product name before buying.

Independent third-party testing improves the odds but does not eliminate the risk, and a certificate is only meaningful when it is recent, batch-specific and traceable to a named laboratory.

Supplements and liver injury

Herbal and dietary supplements are a recognised cause of drug-induced liver injury in the United States, and concentrated botanical extracts — including green tea extract — and bodybuilding products appear disproportionately in reported cases. The NIH’s LiverTox database catalogues what is known about specific agents.

Stop taking a supplement and seek medical attention if you develop yellowing of the skin or eyes, dark urine, pale stools, persistent nausea, unusual fatigue or pain in the upper right abdomen. These can be signs of liver injury and are not something to wait out.

Reader reviews are not clinical evidence

Community reviews on this site are personal accounts from individual readers. They are moderated for abuse and obvious fakery, not verified for accuracy, and no one checks whether the person’s experience was caused by the product at all. An individual account — good or bad — is an anecdote, not evidence of what a product will do for you, and it should carry no weight against a clinical trial or your own clinician’s advice.

Reporting a bad reaction

If you experience a serious reaction to a supplement, tell your healthcare provider first. You can also report it to the FDA through the Safety Reporting Portal. These reports are how regulators detect patterns that no single consumer could see, and a few minutes spent filing one can matter to someone else.

Telling us as well is useful — write through the contact page — because a credible safety report will prompt us to re-examine a review. But a message to this site is not a substitute for medical care or a regulatory report, and it will not be seen quickly.

Your responsibility

You use the information on SharpAndLean at your own discretion. It is offered in good faith, sourced as carefully as we can manage, and corrected when it is shown to be wrong — see the terms of use for the full position. It remains general information about products, written without knowledge of you, and it cannot carry the weight of a decision that belongs with you and a professional who can examine you.