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/.