Pick up almost any packaged food and the front of the pack will be covered with claims: “high protein”, “low fat”, “no added sugar”, “natural”, “source of fibre”, “made with whole grains”, “heart healthy”, “immunity booster”. Some of these are tightly regulated and meaningful; others are marketing language with no legal definition. Learning to tell the difference lets you make better choices and avoid paying a premium for products that are not what they seem.
Three Types of Claims
- Nutrient content claims: describe the level of a nutrient (“low in fat”, “high in fibre”, “source of calcium”, “no added sugar”).
- Health claims: link a food or nutrient to a health outcome (“calcium helps maintain strong bones”, “soluble fibre from oats helps lower cholesterol”).
- Other marketing claims and descriptors: “natural”, “wholesome”, “farm fresh”, “superfood”, “clean”, “detox”, “artisanal”, or images of fruit and pastoral scenes. These typically lack legal definitions or standards.
Understanding which category a claim falls into tells you how much weight it deserves.
How Nutrient Content Claims Are Regulated
Most countries define specific criteria for nutrient content claims in their food laws, often following Codex Alimentarius guidance (CAC/GL 23-1997). In India, the FSSAI’s Food Safety and Standards (Advertising and Claims) Regulations, 2018, define claim categories and conditions. The following are typical thresholds, although exact values differ by jurisdiction and food type, so use them as guides rather than legal definitions.
| Claim | Typical meaning (approximate, based on Codex and FSSAI) |
|---|---|
| Low fat | No more than 3 g fat per 100 g (solids) or 1.5 g per 100 ml (liquids) |
| Fat-free | No more than 0.15 g per 100 g or 100 ml (FSSAI); 0.5 g per serving in the US |
| Low saturated fat | No more than 1.5 g per 100 g (solids), 0.75 g per 100 ml (liquids), and saturated fat plus trans fat not exceeding 10 percent of energy |
| Low sugar | No more than 5 g sugars per 100 g or 2.5 g per 100 ml |
| Sugar-free | No more than 0.5 g sugars per 100 g or 100 ml |
| No added sugar | No sugars added, including sugar-containing ingredients such as juice concentrate (under strict definitions); the product may still contain natural sugars |
| Low sodium | No more than 120 mg per 100 g |
| Very low sodium | No more than 40 mg per 100 g |
| Source of protein | At least 10 percent of NRV (nutrient reference value) per 100 g, or 5 percent per 100 ml, or per serving |
| High in protein | At least 20 percent of NRV per 100 g, or 10 percent per 100 ml |
| Source of fibre | At least 3 g per 100 g (or 1.5 g per 100 kcal) |
| High in fibre | At least 6 g per 100 g (or 3 g per 100 kcal) |
| Source of vitamins or minerals | At least 15 percent of NRV per 100 g, or 7.5 percent per 100 ml, or per serving |
| High in vitamins or minerals | At least twice the “source” level |
| Light or lite | At least 30 percent reduction in the nutrient or energy compared with a reference product, and must specify which |
| Reduced | At least 25 to 30 percent less of the specified nutrient than the regular version |
Check the exact rules of your country on the regulator’s website (FSSAI in India, the FDA in the US, EFSA and national authorities in Europe, FSANZ in Australia and New Zealand). Terms like “high protein” may have different thresholds than the above.
Health Claims and Their Levels of Evidence
Health claims typically fall into groups:
- Nutrient function claims: describe a well-established role (“Calcium is needed for normal growth and development of bones and teeth”). They are generally accepted when the food is a source of that nutrient.
- Disease risk reduction claims: state that a nutrient or food may reduce the risk of a disease (“Diets rich in potassium may reduce the risk of high blood pressure”). They require stronger evidence and are tightly regulated.
- Qualified health claims (US): claims with limited evidence, which must be accompanied by a disclaimer.
- “Structure/function” claims (US): allowed for supplements and foods (“supports immune health”) without pre-approval, but the manufacturer must have substantiation and a disclaimer.
In the EU, health claims must be authorised by EFSA based on scientific evidence, which has led to the rejection of hundreds of claims, such as many for probiotics. In India, FSSAI regulations permit specified nutrition and health claims and prohibit misleading or unsubstantiated claims, and the Consumer Protection Act and ASCI guidelines also govern advertisements. Claims that a food can cure, treat or prevent disease are generally prohibited for ordinary foods.
Marketing Terms With No Standard Meaning
| Term | What to know |
|---|---|
| Natural | Often not defined or loosely defined; a product can be “natural” and high in sugar, salt and fat. FSSAI regulations limit use of “natural” and “fresh” to foods that meet specific conditions, but enforcement and consumer understanding vary. |
| Superfood | Marketing term with no scientific or legal definition; the EU banned the use of the term on labels unless accompanied by an authorised health claim. |
| Detox or cleanse | No evidence that foods or drinks “detoxify” beyond the body’s own organs; avoid. |
| Wholesome, nutritious, healthy | May be unregulated or loosely regulated. The US FDA updated its “healthy” definition in 2024 to require limits for added sugars, sodium and saturated fat, and inclusion of food groups, but many countries have no strict rule. |
| Multigrain | Means more than one grain, not whole grain; may be mostly refined flour. |
| Made with whole grains | Could contain a small proportion of whole grain. Look for “100 percent whole grain” or whole grain as the first ingredient and fibre content. |
| Made with real fruit | Could be a tiny percentage; check the ingredient list. |
| Immunity boosting | Immunity depends on overall health, diet, sleep and vaccination; a single product cannot “boost” it; claims must comply with regulations and substantiation. |
| Lightly sweetened, low calorie, diet | Variable; check numbers and compare. |
| Organic | Refers to production methods under a certification scheme (such as India Organic/NPOP/FSSAI Jaivik Bharat), not nutritional quality. |
| Gluten-free, vegan, non-GMO | Relevant to dietary needs or values but not necessarily to nutritional healthfulness. |
| Zero trans fat | May still contain up to 0.5 g trans fat per serving in some countries; check for partially hydrogenated oils. |
The Health Halo Effect
Research on the “health halo” shows that when a product carries a healthy-sounding claim, such as “organic”, “low-fat” or “gluten-free”, people tend to rate it as lower in calories, give themselves permission to eat more and judge it as healthier overall. A “fat-free” biscuit may be rich in sugar and refined flour, and “protein bars” may be as high in sugar as candy bars. Front-of-pack claims highlight one favourable feature while the rest of the product may be less favourable.
A Step-by-Step Method for Evaluating Packaged Foods
- Ignore the front first; turn the pack over.
- Read the ingredient list. Ingredients are listed by weight. Short lists with recognisable foods at the start are usually better. If sugar, refined flour or oil appears first, the claim on the front may be misleading.
- Check serving size and servings per pack.
- Look at the nutrition panel per 100 g. Check energy, saturated fat, trans fat, total and added sugar, sodium, fibre and protein.
- Compare with a benchmark. For example, as a rule of thumb per 100 g: sugars above 22.5 g, saturated fat above 5 g, and sodium above 600 mg (about 1.5 g salt) are high. Fibre above 6 g and protein above 20 percent of NRV are good.
- Verify the claim: does the numeric value meet the claim threshold? Is “high protein” achieved with 5 g per serving of a high-sugar bar?
- Look for the front-of-pack labels introduced in some countries (Nutri-Score in Europe, traffic lights in the UK, warning labels in Chile and Latin America, Health Star Rating in Australia and New Zealand). India’s FSSAI has been working toward a front-of-pack labelling system; the Supreme Court has directed progress on this.
- Consider the overall role of the food in your diet. Whole, minimally processed foods without labels, like fruit, vegetables, pulses and nuts, often provide the best nutrition.
- Check certification marks like FSSAI licence numbers, the “+F” fortification logo, organic logos and vegetarian (green dot) or non-vegetarian (brown dot) marks.
Red Flags
- Claims on products aimed at children, with cartoons and celebrity endorsements, that are high in sugar or salt.
- Words like “miracle”, “cure”, “guaranteed” or “clinically proven” without detail.
- Claims referencing a single study or an obscure ingredient.
- Very long ingredient lists with many additives, colours and flavours.
- Serving sizes that are unrealistically small.
- Different claims on different parts of the pack that conflict.
Common Misconceptions
- “If it’s on the label, it’s been verified.” Regulators set rules, but enforcement is uneven, and many marketing terms are unregulated.
- “Low fat equals low calorie.” Often sugar replaces fat.
- “Organic means more nutritious.” Differences in nutrient content are small and inconsistent.
- “Fortified means healthy.” Check the rest of the nutrition profile.
- “All ‘natural’ products are safe.” Natural does not guarantee safety or nutrition.
Summary
Packaging claims can be informative when they correspond to regulated definitions, and misleading when they are loose marketing. Turning the pack around, reading the ingredients and nutrition panel, comparing per 100 g, and knowing the thresholds for common claims empower you to see through the hype. When in doubt, choose foods that need no claims at all.
References and Further Reading
- Codex Alimentarius. Guidelines for use of nutrition and health claims (CAC/GL 23-1997).
- FSSAI. Food Safety and Standards (Advertising and Claims) Regulations, 2018; Labelling and Display Regulations, 2020.
- EFSA. Nutrition and health claims.
- US FDA. Nutrient content claims and “healthy” claim final rule (2024).
- Chandon P, Wansink B. The biasing health halos of fast-food restaurant health claims. Journal of Consumer Research, 2012.
Regulations change; check your national regulator for current thresholds. This article is educational and not personalised advice.