Nutrition Labels: How to Read Them Correctly

Nutrition label on food package

Food labels are designed to inform, but they're also designed to sell. Learning to read them critically is one of the most valuable nutrition skills you can develop. After 15 years of coaching, I've seen how a few minutes understanding labels can transform someone's food choices.

Start With the Serving Size

The serving size is the foundation of the entire label—everything else is based on it. But here's what most people miss: the serving size is not a recommendation. It's often smaller than what people actually eat. A bottle of "healthy" granola might list 1/3 cup as a serving, but who eats only 1/3 cup? If you eat 2/3 cup, you're getting double everything on the label.

Always ask: "Am I going to actually eat this amount?" If not, adjust the numbers accordingly.

Calories: Context Matters

Calories tell you how much energy is in one serving. But 100 calories of almonds behaves very differently in your body than 100 calories of candy. Calories are a measurement tool, not a judgment. A 150-pound sedentary woman might need 1800-2000 calories; an endurance athlete might need 3000+.

Nutrients to Limit

The FDA has highlighted certain nutrients that Americans typically eat too much of:

Nutrients to Get More Of

The bottom section lists vitamins and minerals. Fiber, vitamin D, calcium, iron, and potassium are nutrients many Americans are lacking. When a product says it's "high in fiber" or "a good source of," it must contain 20%+ of the daily value per serving.

The Ingredient List: Order Matters

Ingredients are listed by weight, descending from most to least. If sugar (or any form of sugar—cane juice, high-fructose corn syrup, dextrose, maltose, etc.) is in the top 3 ingredients, that product is fundamentally a candy in disguise, regardless of health claims on the front.

Watch for ingredient splitting: a product might list "whole wheat," "enriched flour," and "wheat flour" separately—they're all wheat flour, just separated to make wheat appear lower on the combined list.

Front-of-Package Claims: Take With a Grain of Salt

"Made with whole grains," "natural," "zero trans fats," "fat-free"—these claims are marketing, not nutrition advice. A "fat-free" product is often high in sugar to compensate for the removed fat. "Made with whole grains" might mean the product contains a token amount of whole grain while being mostly refined flour.

Always flip to the back and read the actual nutrition facts and ingredients.

Daily Value Percentages

The % Daily Value (\%DV) tells you how much one serving contributes to a daily diet based on a 2000-calorie diet. 5\%DV is considered low; 20\%DV is high. Use this to quickly assess if a food is high or low in a nutrient.

Jane Quist

About Jane Quist

Jane Quist is a certified nutrition coach with 15 years of experience.