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Understanding Supplements: Read Labels, Reference Servings and Evidence Correctly

by Natur Total Team on Aug 31, 2026
Nahrungsergänzungen verstehen: Bedarf und Qualität – sachliche Einordnung und Sicherheit

A supplement cannot be assessed solely by the largest number on its package. An understandable comparison requires at least the exact ingredient, its amount and the corresponding serving. Only then comes the question of whether supplementation is useful for your concern at all.

First find the reference amount

Is the figure per capsule, per two capsules or per recommended daily serving? Comparisons using different reference amounts can mislead. The weight of a raw-material mixture is not automatically the amount of each component either.

Read a supplement label in four steps
StepWhat to checkTypical confusion
1. IdentityComplete ingredient identification and product formEquating a raw-material name with exact active-component content
2. ServingThe reference amount for every figureComparing one capsule with a daily serving
3. Total intakeOther products containing the same ingredientsConsidering each bottle in isolation
4. ReasonWhat specific goal or recommendation is involved?Inferring a personal deficiency from the label

A calculation example without a dosing recommendation

A hypothetical product declares 50 milligrams of a component per capsule. Two capsules supply 100 milligrams. Another already declares 100 milligrams per daily serving of two capsules. In this example, the apparently different package figures describe the same daily amount.

The example assesses neither the safety of that amount nor a particular commercial product. Without identifying the ingredient and personal context, it could not do so. Calculation and medical assessment are different steps.

Reference values are not a personal prescription

EFSA explains that scientific dietary reference values provide a basis for professionals and should not be understood directly as individual targets. It also distinguishes requirements-oriented guidance from tolerable upper limits. [1] A percentage of a reference value therefore does not independently determine how much you need additionally or tolerate long term.

Different circumstances may apply with illness. A medically justified treatment is neither replaced by a general reference label nor changed independently.

Separate notification, quality testing and efficacy

According to Germany's BVL, notification of a dietary supplement is not authorization or approval. An acknowledgment of receipt does not provide official confirmation of marketability. [2] Do not confuse an administrative notification with clinical product testing.

A laboratory report on composition also does not automatically answer the question of health benefit. NCCIH notes that commercially available products may differ from preparations used in studies. [3] The investigated use should match the advertised claim.

Make the next question specific

A useful question is: How much of this ingredient does my actual serving supply, and which evidence fits my reason for taking it? When medicines are involved, bring the complete product list to the pharmacy or practice. Not all combinations are useful or unproblematic. [3]

Frequently asked questions

Is the largest milligram figure automatically the best choice?

No. Ingredient, serving and specific reason must be considered together.

Are reference values personal intake plans?

No. They do not replace individual assessment.

Is BVL notification evidence of efficacy?

No. Notification and authorization or clinical testing are different things.

Why should several products be checked together?

Ingredients can overlap and interact with medicines.

Further reading

Quality evidence and batch references and choosing supplements according to need.

Sources

  1. EFSA: Dietary reference values
  2. BVL: Rules for online shops
  3. NCCIH: Using Dietary Supplements Wisely

Editorially updated: September 28, 2026. Hypothetical calculation, not individual dosing or a legal product assessment. Natur Total is itself a seller.

Tags: Evidenz, Gesundheit, Natur Total, Ratgeber, Sicherheit
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