How to compare two supplement labels

A guide to keep beside the pack

Put two packs on the table. Start with who they are for and the recommended daily portion. Then compare the details on the same basis.

For adults comparing food supplements sold in the EU. Use this with any brand, whether you are buying for yourself or someone else.

Six things to check

  1. Who is it for?

    Find the intended age range and any restrictions. An adult product and a children's product are not interchangeable simply because they list similar nutrients.

  2. What is one day’s portion?

    Read the directions: one capsule, two gummies or a measured scoop? Use the recommended daily portion for every comparison. If the nutrient table already gives amounts per daily portion, do not multiply them again.

  3. How much of each nutrient?

    Compare the same nutrient in the same unit: mg with mg, or µg with µg. There are 1,000 µg in 1 mg. Read the nutrient amount itself, not just the weight of a blend or ingredient compound. A larger number alone does not tell you which product suits you.

  4. What does % NRV mean?

    NRV means nutrient reference value. On EU vitamin and mineral labels, it provides a standard adult reference for comparison. It is not a personal prescription, a child's requirement or a safety limit. Keep the actual amount beside the percentage.

  5. What else is in it?

    Read the full ingredients list, including highlighted allergens, flavourings and sweeteners. A ‘no added sugars’ claim does not mean ‘sugar-free’. If information you need is missing, ask the brand before deciding.

  6. What does the routine cost?

    Divide the pack price by the number of recommended daily portions. Check delivery charges and whether the price depends on a subscription. Read storage directions, warnings and the best-before date too.

Compare a day with a day

A made-up example using vitamin C. These numbers explain label arithmetic; they are not a recommended dose or a comparison of our products.

Two fictional packs, compared at their stated daily portions
Check Pack A Pack B
Daily portion 2 capsules 1 scoop
Amount shown 40 mg per capsule 80 mg per scoop
Vitamin C per day 40 × 2 = 80 mg 80 × 1 = 80 mg
Pack contents 60 capsules 30 scoops
Days per pack 60 ÷ 2 = 30 30 ÷ 1 = 30
Example price €18 €24
Price per day €18 ÷ 30 = €0.60 €24 ÷ 30 = €0.80

Both supply the same declared daily amount of vitamin C. That fact does not establish equal suitability, absorption or overall quality. The rest of the label still matters.

Your two-pack comparison sheet

Print this page and fill in the spaces, or copy the rows into your notes. Use your browser’s Print menu to save a copy. No account or email is needed.

Copy the information from each pack before deciding
Check Pack A Pack B
Product name and date checked
Intended age and restrictions
Recommended daily portion
Nutrient compared: amount and unit per day
% NRV, if given
Ingredient forms, allergens and sweeteners
Days per pack
Price per day, delivery and purchase terms
Warnings, storage and best-before date
Questions still to ask

Leave room for a question

If you take medicines, are pregnant or breastfeeding, are choosing for a child, or plan to combine supplements, discuss suitability with a pharmacist or an appropriately qualified healthcare professional. Bring the labels and details of what you already take. This sheet cannot decide whether you need a supplement.