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Why do we need to check the labels of the food before buying it?

5 min read

According to a study published in the American Journal of Preventive Medicine, effective food labeling has been shown to reduce consumer intake of unhealthy nutrients and increase consumption of healthy options. This highlights exactly why do we need to check the labels of the food before buying it, as this simple habit is a powerful tool for making informed dietary decisions and improving your overall health.

Quick Summary

Food labels provide vital information on ingredients, nutritional value, and allergens, which is crucial for safety and making healthier choices. They reveal hidden sugars and unhealthy fats, allow comparison between products, aid in managing dietary restrictions, and help with portion control for better health outcomes.

Key Points

  • Verify marketing claims: Many front-of-package claims like 'natural' or 'fat-free' can be misleading; checking the labels reveals the true nutritional content.

  • Protect against allergens: For individuals with allergies, reading ingredient lists is crucial for preventing severe allergic reactions, as manufacturers can change ingredients without notice.

  • Prioritize whole foods: Ingredients are listed by weight, so checking if whole foods are listed first helps avoid highly processed products high in sugar or unhealthy fats.

  • Control portions: Labels specify serving sizes, helping you accurately track calorie and nutrient intake and prevent unintentional overeating.

  • Use the % Daily Value: The 5/20 rule offers a quick guide: aim for 5% DV or less for saturated fat, sodium, and added sugars, and 20% DV or more for beneficial nutrients like fiber.

  • Ensure food safety: Checking 'use-by' or 'best before' dates ensures you are consuming fresh, safe products and avoiding the risks of foodborne illnesses.

  • Compare products effectively: Use the 'per 100g' column to compare the nutritional value of similar products accurately, as serving sizes can vary between brands.

In This Article

For anyone aiming to manage their diet effectively, checking food labels is a non-negotiable step. The small text on the side or back of packaging contains a wealth of information, empowering you to move from simply trusting marketing claims to making genuinely informed and healthy choices for yourself and your family. Ignoring this habit leaves you vulnerable to misleading promotions and potential health risks. Here's a comprehensive breakdown of the critical reasons why this practice is so important.

Unmasking Misleading Marketing Claims

Front-of-package marketing can be highly deceptive, designed to make a product appear healthier than it is. Terms like 'natural,' 'multigrain,' or 'fat-free' often give a misleading impression, creating a 'health halo' that influences purchasing decisions. For instance, a 'fat-free' yogurt might compensate for the lack of flavor with an abundance of added sugars. An item claiming to be 'made with whole grains' might contain only a small amount, with refined grains being the primary ingredient. By consistently turning the package over and reading the nutrition information, you can verify these claims and see the complete, unbiased picture of the product's contents.

Protecting Against Allergens and Intolerances

For individuals with food allergies or sensitivities, checking food labels is a life-saving habit. Allergens can hide in unexpected places and manufacturing processes can sometimes lead to cross-contamination. Always reading the ingredients list, even for a product previously deemed 'safe,' is essential because manufacturers can change ingredients at any time without notice. Common allergens like peanuts, dairy, wheat, soy, and eggs must be clearly declared, but vigilant reading is still required to spot them, as they might appear under different names. Furthermore, precautionary statements like 'may contain' or 'processed in a facility that also processes...' should not be ignored, as they indicate a risk of cross-contamination.

Decoding the Ingredients List

The ingredients list is a transparency tool, revealing exactly what is in your food. Ingredients are listed in descending order by weight, meaning the first few items listed make up the largest portion of the product. This is a quick way to gauge a product's composition. For example, if sugar or hydrogenated oils are among the first three ingredients, you know that the product is likely high in less desirable components. Look for products with whole foods and recognizable ingredients listed at the top. A very long ingredient list can also signal a highly processed item with numerous additives and preservatives.

Mastering Portion Control and Calorie Awareness

The Nutrition Facts panel helps with weight management by providing crucial information on serving size and calories. It is important to note that the serving size listed is a standardized amount, not necessarily the amount a person typically eats. If you consume multiple servings in one sitting, you need to multiply the calorie and nutrient values accordingly. Being mindful of realistic portion sizes and comparing the calories of different brands of similar products allows you to make choices that align with your dietary goals. This practice is particularly useful for controlling intake of high-calorie, low-nutrient foods often referred to as discretionary items.

Using the Percent Daily Value (%DV)

The Percent Daily Value (%DV) is a metric on the Nutrition Facts panel that indicates how much one serving of a food contributes to a 2,000-calorie daily diet. This tool helps you quickly identify whether a food is high or low in a particular nutrient. The '5/20 rule' is a handy shortcut for using the %DV:

  • 5% DV or less indicates a food is a low source of a nutrient. Aim for foods with 5% DV or less of nutrients to limit, such as saturated fat, sodium, and added sugars.
  • 20% DV or more indicates a food is a high source of a nutrient. Aim for foods with 20% DV or more of beneficial nutrients like fiber, Vitamin D, calcium, and iron.

Comparing Products Effectively

When comparing similar products, such as two different brands of pasta sauce, the 'per 100g' or 'per 100ml' column on the Nutrition Facts panel is the most reliable metric. Using the 'per serving' column can be misleading because serving sizes can differ between brands. By comparing the nutritional content per 100g, you get a true like-for-like comparison, enabling you to choose the option with less saturated fat, sodium, and added sugars. Some labels also feature a Health Star Rating (HSR) or traffic light system on the front, providing a quick visual comparison. However, these should still be cross-referenced with the full panel for detailed information.

Food Label Comparison Table

Feature Benefit of Checking Consequences of Not Checking
Serving Size Allows for accurate calculation of calorie and nutrient intake, enabling better portion control. Risk of unintentional overconsumption of calories and nutrients by misinterpreting what constitutes a single serving.
Ingredients List Identifies allergens, additives, and the true composition of a product, helping avoid highly processed items. Exposure to potential allergens and a higher intake of artificial ingredients, additives, and hidden sugars.
% Daily Value Helps quickly determine if a food is a high or low source of specific nutrients like fat, sodium, and fiber. May lead to an unbalanced diet by consuming excessive amounts of less desirable nutrients or insufficient amounts of beneficial ones.
Date Markings Ensures food safety by verifying 'use-by' or 'best before' dates, preventing consumption of spoiled or unsafe products. Increases the risk of foodborne illness from consuming food that has expired or gone bad.
Nutrient Content Claims Enables verification of marketing claims like 'low fat' or 'high fiber' by checking the Nutrition Facts panel. Can be misled by front-of-package claims, leading to purchasing items that are less healthy than they appear.

Conclusion: Empowering Your Choices

Understanding and utilizing food labels is a fundamental skill for maintaining a healthy and conscious diet. It moves you from a passive consumer to an active participant in your own nutritional health. By dedicating a few extra moments at the grocery store to examine serving sizes, ingredients, and nutrient content, you can protect against allergens, manage your weight, and avoid falling for marketing ploys. This practice is about empowerment and making deliberate choices that directly contribute to your long-term health and well-being. It is the clearest path to aligning what you think you're eating with what you're actually consuming. For more information on understanding labels, you can refer to authoritative sources like the FDA's guide on reading nutrition labels.

Frequently Asked Questions

A 'use-by' date is about food safety, and you should not consume the product after this date, even if it looks and smells fine. A 'best before' date is about food quality, and the food may still be safe to eat after this date, but might not be at its best.

Sugars are often listed under many different names. Look for ingredients like corn syrup, high-fructose corn syrup, dextrose, sucrose, maltose, molasses, fruit juice concentrate, and evaporated cane juice.

No, the term 'natural' is not well-regulated and does not guarantee that a product is healthy. It simply means the product does not contain artificial ingredients or additives. A 'natural' product could still be high in sugar or fat.

To compare products accurately, you should use the 'per 100g' or 'per 100ml' column on the Nutrition Information Panel, as serving sizes can differ between manufacturers.

Ingredients are listed in descending order by weight. The first three ingredients are the most abundant, so if you see sugar or unhealthy fats near the beginning, the product is likely less nutritious.

Food labels help with weight loss by providing information on calories, serving sizes, and the amounts of fat and sugar. They allow you to make informed decisions to limit high-calorie, low-nutrient foods and prioritize healthier options.

In some regions, such as Canada, these precautionary statements are voluntary and not officially regulated, although they are still legally required to be truthful. In other areas, regulations may vary. It is safest for those with allergies to strictly avoid products with these warnings.

References

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Medical Disclaimer

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