Food labels are one of the most powerful tools available to consumers, yet most people spend only a few seconds reading them. Learning to decode the information on a label can dramatically improve your eating habits and help you make smarter choices at the grocery store.
Start with the Serving Size
Everything on a nutrition facts panel is based on the serving size listed at the top. A bag of chips might look like a single serving, but if the label says it contains 3.5 servings and you eat the whole bag, you need to multiply every number by 3.5. Always check the serving size before anything else.
Calories and Macronutrients
Calories tell you how much energy the food provides. The three macronutrients — carbohydrates, protein, and fat — each contribute to that total. Fat has 9 calories per gram, while carbohydrates and protein each provide 4. Look at the balance of these macros relative to your dietary goals.
Reading the Ingredient List
Ingredients are listed in descending order by weight. If sugar, refined flour, or a vegetable oil appears in the first three ingredients, that food is likely heavily processed. The shorter the ingredient list, and the more whole-food ingredients you recognize, the better.
Daily Value Percentages
The % Daily Value (%DV) shows how much a nutrient in one serving contributes to a 2,000-calorie daily diet. A %DV of 5% or less is considered low; 20% or more is considered high. Use this to limit nutrients like sodium and saturated fat, and to ensure you're getting enough fiber, calcium, and iron.
Hidden Sugars and Sodium
Sugar can appear under many aliases: sucrose, dextrose, maltose, corn syrup, agave nectar, and more. Similarly, sodium hides in foods you wouldn't expect — bread, sauces, and breakfast cereals can all be surprisingly salty. Getting comfortable with these patterns takes practice but pays off in lasting health benefits.