Skip to content

How much fat per 100g is considered low fat?

4 min read

According to the UK's National Health Service (NHS), a solid food is officially classified as 'low fat' if it contains 3g of fat or less per 100g. This standard helps consumers quickly assess the nutritional content of products and make informed choices when shopping for healthier options.

Quick Summary

This guide explains the specific regulations and definitions for what constitutes a low-fat food, focusing on the commonly used 'per 100g' metric. It details the criteria for solid and liquid products and contrasts it with 'fat-free' and 'reduced-fat' claims.

Key Points

  • Low-Fat Standard: A solid food must contain 3g or less of total fat per 100g to be officially labelled 'low fat'.

  • Liquids differ: For liquids, the threshold is 1.5g of fat or less per 100ml, with a slightly higher allowance for semi-skimmed milk.

  • Fat-Free vs. Low-Fat: 'Fat-free' products must contain 0.5g of fat or less per 100g, making them distinct from low-fat items.

  • Reduced-Fat is not always Low-Fat: A 'reduced-fat' claim only means the product has at least 30% less fat than its original version, which may still be high in fat.

  • Compare per 100g: For accurate comparisons between products, always use the 'per 100g' column on the nutritional information panel.

  • Check Saturated Fat: Pay attention to the saturated fat content; a low-fat claim doesn't automatically mean low saturated fat.

  • Look for green lights: In traffic light labelling systems, green indicates a low level of a nutrient, including fat.

In This Article

The Official 'Low Fat' Threshold

For a solid food to be legally labelled as 'low fat' in the UK and EU, it must contain no more than 3g of total fat per 100g. This is a clear, standardized rule that allows consumers to compare different products accurately. For liquids, the threshold is different: it must contain 1.5g of fat or less per 100ml. An exception applies to semi-skimmed milk, which has a slightly higher limit of 1.8g of fat per 100ml. By focusing on the 'per 100g' value on nutrition labels, you can cut through marketing jargon and understand a product's true fat content.

Comparing Different Fat Claims

It is important to understand the distinctions between 'low fat,' 'fat-free,' and 'reduced fat' claims, as they all indicate different fat levels. A 'fat-free' product, for example, is not devoid of fat but contains a negligible amount, typically 0.5g or less per 100g or 100ml. 'Reduced fat' is another common claim, but it can be misleading. A product labelled as 'reduced fat' must contain at least 30% less fat than a standard, comparable product. However, if the original product is extremely high in fat, a 'reduced-fat' version could still be a high-fat food, so checking the nutrition panel is crucial.

To make healthy comparisons, always check the nutritional information per 100g. Comparing different yogurts, for example, involves reading the per 100g column to see which has the lowest fat content, regardless of the marketing on the front of the pack. Similarly, when choosing breakfast cereals, comparing the fat per 100g provides an accurate, comparable metric.

The Importance of Saturated Fat

While total fat is an important metric, it is also essential to consider the saturated fat content. High levels of saturated fat can raise cholesterol and increase the risk of heart disease. The low-fat thresholds also apply to saturated fat, with different values. A food is considered low in saturated fat if it contains 1.5g or less per 100g. It is possible for a food to be 'low fat' overall but still relatively high in saturated fat, so a comprehensive look at the label is always best.

Lists and Examples for Different Food Types

Low-Fat Dairy Alternatives

  • Skimmed milk or 1% milk
  • Low-fat cottage cheese
  • Fat-free or low-fat yogurt
  • Neufchâtel cheese, a lower-fat spreadable option

Low-Fat Protein Sources

  • Chicken and turkey breast (skinless)
  • Fish, particularly white fish
  • Beans, peas, and lentils
  • Lean cuts of red meat

Low-Fat Cooking Methods

  • Grilling, baking, or poaching instead of frying
  • Steaming vegetables to avoid adding oil
  • Using a spray oil or measuring with a teaspoon to control portions

What the Labels Mean: A Comparison Table

Label Claim Total Fat per 100g (Solids) Total Fat per 100ml (Liquids) Saturated Fat per 100g (Solids)
Fat-Free 0.5g or less 0.5g or less 0.1g or less
Low-Fat 3g or less 1.5g or less 1.5g or less
High-Fat More than 17.5g More than 8.75g More than 5g
Reduced-Fat At least 30% less than a comparable product At least 30% less than a comparable product N/A

How to Use Labelling for Healthier Choices

Understanding food labels is a critical skill for managing your diet and health. By looking at the 'per 100g' column, you can make an accurate, like-for-like comparison between similar products, such as different brands of yoghurt or cereal. Beyond fat, the labels also provide information on sugar and salt, which is crucial since low-fat products sometimes compensate with higher sugar content. A product with predominantly 'green' traffic light labels for fat, saturates, sugar, and salt is generally considered a healthier option.

In addition to reading the numerical values, consider the ingredient list. Ingredients are listed in descending order by weight, so if fat, saturated fat, or sugar appears among the first few ingredients, it is a key component of the product. Ultimately, a balanced diet is about moderation, but informed choices begin with understanding what you are consuming. The simple knowledge of how much fat per 100g is considered low fat empowers you to select foods that align with your health goals.

Conclusion

To conclude, a food is officially low in fat if it contains 3g or less per 100g, or 1.5g or less per 100ml for liquids. This standard provides a reliable metric for consumers to evaluate products. By using the 'per 100g' nutritional information, understanding the differences between low-fat, fat-free, and reduced-fat claims, and considering both total fat and saturated fat content, you can effectively manage your dietary fat intake. Always remember to check the overall nutrition label, as lower fat can sometimes mean higher sugar or salt, and a balanced diet is key for long-term health. For more information on understanding food labels, visit the NHS website at https://www.nhs.uk/live-well/eat-well/food-guidelines-and-food-labels/how-to-read-food-labels/.

Frequently Asked Questions

In the UK, a solid food is defined as low fat if it contains no more than 3g of total fat per 100g. For liquids, the threshold is 1.5g of fat or less per 100ml.

The EU and UK share the same standard for a low-fat claim on food labels. A solid food must have less than 3g of fat per 100g, while a liquid must have less than 1.5g per 100ml.

No, 'fat-free' is not the same as 'low fat.' A product labelled 'fat-free' must contain a negligible amount, specifically 0.5g of fat or less per 100g or 100ml.

A 'reduced fat' claim means the product contains at least 30% less fat than a similar, standard product. However, this doesn't guarantee it's a low-fat food, as the original product might have been very high in fat.

The 'per 100g' value is the most reliable metric for comparing the nutritional content of different food products. It eliminates discrepancies caused by varying serving sizes and provides a standard basis for comparison.

Not necessarily. Sometimes, fat is replaced with sugar to maintain flavour, which can result in a similar calorie content to the full-fat version. Always check the full nutrition panel for sugar and calorie information.

Some food labels use a traffic light system, where a green light for fat indicates a low-fat product (3g or less per 100g), amber means medium (3g to 17.5g), and red means high (more than 17.5g).

Yes, for a food to be considered low in saturated fat, it must contain 1.5g or less per 100g. It is important to check both total fat and saturated fat when evaluating a product.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.