Ancient Nutra Wellness Team · 8 October 2026 · 5 min read

What evidence-based means here: how the team grades a claim

By the Ancient Nutra Editorial Team

"Evidence-based" is one of the most overused phrases in wellness. It can mean a large trial, a single mouse study, or a hopeful reading of a product label. This article sets out what the phrase is meant to mean on this blog: the written rules the team follows when it decides how strongly a sentence is allowed to speak. You can hold any post here against them.

Start with the rungs of the ladder

Evidence comes in layers, and each layer answers a different question. Here is the ladder, from weakest to strongest, with the wording each rung is allowed.

• Traditional use. A herb has been used in Ayurveda or in a family kitchen for generations. That tells you how people have used it. It does not tell you that it works. The wording stays at "traditionally used for", and heritage is treated as a matter of voice, never as a source of fact.
• Lab and animal studies. These show that something happens in a dish or in an animal. The house rule is to say exactly that: it was shown in animals, not demonstrated in people. It is never written up as a health claim.
• A human trial. Now people are involved, but a small trial can mislead. When one is cited, the sentence names what the trial actually measured, how long it ran and who took part.
• A randomised controlled trial. People are split by chance into a treatment group and a comparison group, which makes the result harder to explain away. It is stronger, but still one study.
• A systematic review. According to Cochrane, a systematic review tries to identify, appraise and synthesise all the empirical evidence that meets set eligibility criteria for a specific question. It sits at the top because it asks whether the studies agree.

A higher rung does not make a claim big. A systematic review can conclude that the evidence is too weak to say anything, and when it does, that is the sentence that gets written.

Check that the study is about the same plant

This is the most common way a supplement claim goes wrong. Many herbs share a common name or a family resemblance, and a study on one plant gets quietly attached to another. The rule here is simple: every study, trial or compound cited must be about the same plant the article is about, using one canonical botanical name.

If a trial was run on a different species, it does not get relabelled, and it does not get cited. It gets removed. Relabelling would turn a borrowed result into an invented one, and a reader would have no way to see the join. The same logic means an herb with no human trials is never described as if it had them.

For a worked example of the style, see Ceylon cinnamon and blood sugar: what the trials actually show, and for what happens when the evidence runs out, What focus herbs can honestly claim, and where the evidence stops.

Match the time period to the trial

Duration advice is held to the same standard as the claim. If the trials behind a sentence ran for eight weeks, the most the sentence may say is eight weeks, followed by a pause and a reassessment. A house-default period, applied the same way to every ingredient, is retired. It was never based on any one herb's trials, and for some ingredients it ran far longer than any trial behind it.

The same goes for onset. A phrase such as "most people notice a change by the second month" is only allowed when a human trial of that exact herb and that exact length supports it.

Let the safety record change the words

A claim is not only about benefit. For herbs that go into a daily routine, the team checks the ingredient against an authoritative safety source before writing about it, and the first stop for liver questions is the NIH's LiverTox database. It scores each substance from A (well established as a cause of liver injury) down to E (unlikely), and the score changes what can be written.

• Where the record shows a serious signal, no new benefit claim is made, the sentence carries a plain warning, and duration stays bounded.
• Where the record shows a rare documented signal, the herb can still be written about, but the post carries a short plain safety note and never open-ended daily use.
• Where a safety caution has been fixed in wording, that wording is copied word for word rather than paraphrased, so a post and a product page cannot drift apart.

Two phrases are retired for every ingredient, whatever its score: "safe for long-term daily use" and "no side effects". Neither can be proved for a living plant that people take in different amounts, with different medicines, for different lengths of time.

Choose verbs that fit the rung

Wording does much of the grading. The house list steers away from verbs such as cures, treats, prevents, fixes and reverses, and towards "supports", "helps with" and "may improve". The reason is practical. A supplement is not a medicine, and the FDA notes that it is not authorised to approve dietary supplements for safety or effectiveness before they are marketed. That leaves the standard to the people writing the label and the blog.

A small illustration of the same fact written at three strengths:

• Tradition: "This root has long been used in home remedies for the stomach."
• Animal study: "In rats, an extract changed a marker of digestion. This has not been shown in people."
• Human trial: "In a small trial of adults over a set number of weeks, a specific measure moved a small amount. The trial was too small to settle the question."

Each sentence can be true. Only one of them can be mistaken for a promise, and the rules exist to keep the other two from being read as one.

Be clear about who is speaking

Three more rules are about trust rather than science. Posts are written by the team and are never signed with a reviewer title: no "medically reviewed" line is added, because no practitioner has reviewed them and implying one would be a fabricated credential. Customer stories and team anecdotes are not invented, and a claim about where an ingredient is grown or batch tested is only made when a real record exists for it. For the wider story, see A letter about the word natural, and what it cannot promise.

Corrections follow the same discipline. When a claim is fixed, the fix has to reach every place the claim lives: the title, the search description, the summary shown when a link is shared, and the structured data, not only the body. September on the Ancient Nutra blog lists what was corrected and why.

The bottom line

For the team, evidence-based means three habits: say which rung the evidence is on, keep every study attached to its own plant, dose and duration, and let the safety record soften the words when it should. It is a slower way to write, and it gives up some sentences that would sound better. That trade is deliberate. The aim is a post you can check, not one you are asked to trust.

Sources and further reading

• About Cochrane Reviews, Cochrane Library.
• LiverTox: clinical and research information on drug-induced liver injury, National Institutes of Health.
• Information for consumers on using dietary supplements, U.S. Food and Drug Administration.

Written by the Ancient Nutra Wellness Team. The team researches, sources, and tests every ingredient before it earns a place in an Ancient Nutra blend. Questions? Email info@ancientnutra.com or message Ancient Nutra on Instagram.

Medical disclaimer: This article is for educational purposes only and is not medical advice. Statements have not been evaluated by the FDA. Ancient Nutra products are not intended to diagnose, treat, cure, or prevent any disease. Speak with a qualified healthcare provider before starting any new supplement, especially if you take prescription medication or have a medical condition.