Reading the Label Correctly: Ingredients & Amounts

You turn the tub over in your hand, reading "high-dose", "100% NRV", "magnesium citrate" – and wonder which of it actually matters. The label of a food supplement is not an advertising space but a legally regulated mandatory declaration. Anyone who understands the language behind it can tell within thirty seconds whether a product delivers on what the front promises.

In short: read the label in four steps – the ingredient list (what is inside, in descending order by amount), the nutrient table per daily dose, the specific compound behind each nutrient (citrate rather than oxide, for example) and the % NRV value as a rough guide. The biggest number is never automatically the best product.

The most important points at a glance

• Ingredients are listed in descending order by weight – whatever comes first is present in the largest amount.
• The nutrient table states the amount per daily dose, not per capsule – an important distinction.
• % NRV is a reference value for an average adult, not an individual requirement.
• What matters is the compound of a substance (e.g. bisglycinate vs. oxide), not just its name.
• Also mandatory are the recommended intake, warnings and the note that it is not a substitute for a varied diet.

Step 1: Reading the ingredient list

Every ingredient must be listed, in descending order by weight. This order is revealing: if a filler or carrier such as microcrystalline cellulose sits right at the front and the actual active ingredient further back, the capsule consists mostly of accessory matter. Alongside the main substance you will find flow agents, coating agents and details of the capsule shell (such as hydroxypropyl methylcellulose in vegan capsules). Some of these names sound technical but serve a harmless function during manufacturing. Which additives are necessary and which are rather dispensable is explained in Recognising additives and fillers. Rule of thumb: a short, clear list is usually a good sign.

Step 2: Decoding the nutrient table

The heart of it is the table of nutrient amounts. The decisive reference point is per daily dose – and that can be one capsule or three. A product with "500 mg per daily dose" across three capsules delivers less per capsule than one with "300 mg per capsule". Anyone who overlooks this is comparing apples with oranges.

What "% NRV" really tells you

NRV stands for "Nutrient Reference Value" (formerly referred to as RDA). "100% NRV" means the daily dose covers the reference value of an average adult. That is a rough anchor, not a requirement tailored to you personally – your actual need depends on age, sex, diet, exercise and life stage. Some products deliberately go above 100%, for instance with vitamin C or D; whether that makes sense depends on the individual case and is discussed in Can you take too many vitamins?. For some substances – many plant extracts or amino acids, for example – there is no NRV value at all; the percentage is then simply missing, without the product being any worse for it.

Step 3: Pay attention to the compound – the most important trick

"Magnesium" is not always the same as "magnesium". The label states the specific chemical compound, and that co-determines absorption. Magnesium oxide does contain a lot of magnesium per gram on paper, but it is absorbed less well than magnesium citrate or bisglycinate. Likewise, iron bisglycinate differs from iron sulfate, and vitamin B12 as methylcobalamin from cyanocobalamin. This form specification is perhaps the most valuable piece of quality information on the entire label – and the one most readily left out on the advertising front.

You can go deeper in Bioavailability simply explained, specifically for magnesium in Magnesium bisglycinate or citrate? and for B12 in Vitamin B12: forms and methylcobalamin.

Step 4: Mandatory information and warnings

Every reputable label contains further prescribed details: net quantity, best-before date, storage instructions, the name of the manufacturer or distributor, and the note not to exceed the recommended daily dose. Also mandatory is the statement that food supplements are not a substitute for a balanced, varied diet and a healthy lifestyle. Often you will also find "keep out of the reach of small children". This is not superfluous small print but genuine safety information – and its absence a warning sign.

Putting health claims in perspective

Statements such as "contributes to the normal function of the immune system" are strictly regulated in the EU and permitted only for certain nutrients in fixed wording (Regulation 432/2012). For vitamin C it may be claimed that it contributes to a normal energy metabolism, and for vitamin D that it contributes to the maintenance of normal bones. Such authorised statements are a good sign of seriousness. Grandiose disease or miracle promises, by contrast, are not permitted – anyone advertising with them should be treated with caution.

Checking a label in thirty seconds

With a little practice you can read a label in passing. This sequence has proven itself: first look at the recommended intake – how many capsules per day? Then relate the nutrient table to precisely this daily dose. Next check the compound behind each main nutrient (citrate, bisglycinate, methylcobalamin – or the cheaper oxide and cyanocobalamin). After that, glance at the ingredient list: is the active ingredient at the front, or are several fillers hiding in front of it? Finally the % NRV values as a rough guide. Anyone who makes these five glances routine can expose overpriced or weakly dosed products in seconds.

Common pitfalls when reading

A few traps keep coming up. "High-dose" is not a protected term and says little on its own. A % NRV value of several hundred percent sounds impressive, but with water-soluble vitamins it is not automatically more useful – why is explained in High-dose vitamin C: how much?. Equally confusing: the units. 1000 µg sounds like more than 1 mg, but it is the same thing. And finally the classic – the amount refers to three capsules, but you read it as one. Anyone aware of these pitfalls reads labels with far more confidence.

Ingredient, extract, standardisation – what the words mean

With plant-based products in particular, a close look at the wording pays off. "Turmeric powder" is something different from "turmeric extract", and an extract can be standardised – to a certain proportion of the marker compound curcumin, for instance. This detail co-determines how concentrated the actually interesting ingredient is. The ratio of an extract, often given as "10:1", is also important information: it describes how much starting material one part of extract was obtained from. Anyone who reads such details quickly understands whether a product delivers a genuinely meaningful amount of the active ingredient or is predominantly plant powder. Examples of how to interpret this can be found in Recognising turmeric quality and Recognising ashwagandha quality.

What regulation achieves – and what it does not

The labelling requirements ensure that you can trace amount, form and composition. What the label does not guarantee is that the contents correspond exactly to what is stated – that requires independent laboratory analysis. What this term means is explained in Lab-tested – what does that mean?. And whether expensive equals good is clarified in Buying supplements cost-consciously. A well-readable label together with documented testing makes for a complete picture.

An honest assessment

The label is more honest than the advertising front – you just have to be able to read it. It tells you reliably what and how much is inside, and in what form. What it does not tell you: whether the substance makes sense for you and whether the amount actually contained corresponds exactly to the declaration. You answer the first via your own needs, the second via documented laboratory testing. With these three building blocks – reading the label, knowing your needs, demanding testing – you make well-founded purchasing decisions instead of being led by marketing.

Matching products from Scheunengut

For all our products you will find transparent details on ingredients, amount, compound and recommended intake. Browse our vitamins and minerals, or get an overview of everything via all products. As a German manufacturer we have our products lab-tested – so you can trace the nutrient information on the label.

Frequently asked questions (FAQ)

What does '% NRV' mean on the label?

NRV stands for Nutrient Reference Value (formerly RDA). A value of 100% NRV means the daily dose covers the reference value of an average adult. It is a rough guide value and not an individually tailored requirement, which depends on age, sex and diet.

Why is there no percentage figure for some nutrients?

For some substances such as many plant extracts, amino acids or creatine there is no legally established NRV value. In that case no percentage can or may be given – this is normal and not a quality shortcoming.

What should I pay particular attention to in the ingredient list?

The ingredients are listed in descending order by weight. If the actual active ingredient is well to the back and fillers are at the front, the product consists predominantly of accessory matter. Also pay attention to the specific compound behind each nutrient, such as magnesium citrate rather than just 'magnesium'.

Is a higher number automatically better?

No. A high mg or % NRV value means neither better absorption nor greater benefit. What matters is the right amount for your needs and a well-usable compound. A very high value may even be unnecessary or undesirable.