Informational label guides
How to compare whey protein labels
A documentary guide to comparing whey formulations, allergens and nutritional reporting bases, without recommendations on consumption.
SportLoop — Contenido editorial
- Documentation checked
- Editorial review
- Publication
- Drafted languages
- Español, English, Français, Deutsch, Italiano, Português
Documented facts and editorial criteria
Identify the food and the exact variant
Start with the legal food name, flavour and exact pack format. Whey refers to milk whey, but the commercial front panel does not describe the whole formulation. Read the complete ingredient list and do not transfer figures from another flavour in the same range.
Check whether the pack presents an ordinary food or a food supplement. Not every sports powder belongs to the latter category. Classification affects the specific information required; this guide does not determine the legal classification of a product that has not been documented.
Section documentation: Regulation 1169/2011: food information · Royal Decree 1487/2009: food supplements
Editorial guidance
Read the formulation before comparing names
Look for concentrate, isolate, hydrolysate or a blend in the ingredients. Preserve those terms and any published proportions, without calculating missing percentages. The word hydrolysed alone does not establish the degree of hydrolysis or describe every component of the finished product.
Treat these names as formulation information, rather than a health ranking. They do not establish individual tolerance, sporting results or general superiority. If the label and manufacturer information differ, record the discrepancy and pause that comparison until the correct version has been identified.
Section documentation: Regulation 1169/2011: food information
Editorial guidance
Compare on a common basis
First note what each nutrition column describes: values per 100 g of powder, per declared serving or a prepared drink. These quantities are not interchangeable. Where preparation includes other ingredients, the resulting figures do not describe the powder alone; retain the instructions explaining the reporting basis.
Use the same available basis for both labels and display the original unit. Do not fill missing values or turn a scoop into grams without documentary support. Here, the manufacturer's serving helps explain the pack; it is not a recommendation on quantity, frequency or timing.
Swipe the table to see all columns. With a keyboard, focus the table and use the arrow keys.
| Feature | What to record | What not to infer |
|---|---|---|
| Identity | Food name, flavour and pack format | Equivalence between variants |
| Formulation | Published ingredients and proportions | Superiority from a name |
| Nutrition basis | Powder, serving or prepared drink; units | Unreported values |
| Allergens | Ingredients and warnings separately | Individual suitability |
| Claims | Wording and verifiable conditions | Guaranteed benefits |
Documentation checked: . Editorial guidance.
Section documentation: Regulation 1169/2011: food information · Royal Decree 1487/2009: food supplements · AESAN: nutrition and health claims
Documented facts and editorial criteria
Distinguish allergens, traces and lactose
Whey comes from milk. Check how that allergen is identified and which other allergenic ingredients appear. Distinguish declared ingredients from precautionary warnings about possible presence: they describe different circumstances and must not be combined into a single composition list.
Do not infer that an isolate is lactose-free, or that a lactose statement establishes suitability for someone with a milk allergy. Reproduce only the information for the variant examined. A personal allergy or intolerance question cannot be resolved through this comparison table.
Section documentation: Regulation 1169/2011: food information · AESAN: general food labelling
Documented facts and editorial criteria
Separate information from commercial claims
Declared nutrient quantities and promotional statements about their advantages serve different purposes. Nutrition and health claims are voluntary, but their use has conditions. A statement on a retailer's page or packaging does not automatically establish that SportLoop may reproduce it.
This guide attributes no benefits, efficacy or results to any product. Checking a particular claim would require the authorised wording, composition, conditions of use and translation to be verified. SportLoop remains a sports application; these documentary resources are a complementary section.
Section documentation: Regulation 1924/2006: commercial claims · AESAN: nutrition and health claims
Methodology
Prepared with Codex assistance. Automated checks do not replace the owner’s editorial approval or any required specialist review.
- This guide organizes documents without physical testing, laboratory analysis or clinical assessment. The table contains editorial criteria, not product results or an efficacy-based selection. Identifying commercial candidates is not a recommendation to consume them.
- Sources and translations reviewed documentarily on 16 October 2026 with artificial intelligence assistance. Each product entry requires the label for its exact reference and market; the access date is not a manufacturing or reformulation date.
Limitations
- SportLoop’s documentary policy is approved; this text still awaits explicit editorial approval. Product entries and links require separate authorization once their identity, label and applicable requirements are documented. Unresolved legal or professional questions are excluded individually. This draft review is assisted by artificial intelligence and does not constitute an accredited professional review.
- It provides no dosage, protocols, combinations or suitability advice for children, pregnancy, illness or medication. Individual needs are outside this guide's scope.
- Packaging and formulations can change. A legal source establishes the general framework, not product certification. This guide does not confirm compliance, individual safety, notification or commercial availability.