Reading a Nutrition Label Without a Science Degree

The very first line under "Nutrition Facts" shows the serving size — for example, 2/3 cup (55g) — followed by the number of servings per container. Every single number that follows is based on that serving size, not the whole package.

If the package contains 3 servings and you eat the whole thing, multiply every number by 3. This is the step most people skip, and it leads to the biggest misreads.

Just below serving size, you'll see Calories in large type. This is the total energy in one serving from all sources — fat, carbohydrates, and protein combined. Calories are a useful reference but not the only thing worth considering. A food can be calorie-dense and nutritious, or calorie-light and nutritionally empty.

Total fat covers all fat types. Underneath it, you'll see breakdowns for saturated fat and trans fat, which are the two the FDA requires because they have the clearest links to cardiovascular health in the research literature. Aim to keep saturated fat moderate and trans fat as close to zero as possible. Unsaturated fats (found in nuts, fish, and oils) are not broken out prominently but are generally considered beneficial.

Sodium is listed in milligrams. Many packaged and processed foods are high in sodium, and it can add up quickly across a day's meals. The % Daily Value column (covered in the next step) is especially handy here — 20% DV or more per serving is considered high.

The right-hand column shows % Daily Value for most nutrients. This tells you how much of a nutrient one serving contributes toward a general daily target, based on a 2,000-calorie diet. A quick rule of thumb: 5% DV or less is low; 20% DV or more is high. Use %DV to compare products at a glance or to check whether a single food is heavily weighted toward one nutrient.

Total carbohydrates include three sub-categories: dietary fiber, total sugars, and — critically — added sugars. Dietary fiber is generally something to look for more of. Total sugars includes both naturally occurring sugars (like those in fruit or dairy) and sugars added during processing. Added sugars is its own indented line and is the more actionable number — it tells you how much sugar was put in, not how much was there naturally. For more on that distinction, see the difference between natural and added sugars.

Protein appears below sugars. Unlike most other nutrients, protein doesn't have a %DV listed — the gram amount is what to reference. Below protein, you'll find required micronutrients: Vitamin D, Calcium, Iron, and Potassium. These are listed because many Americans don't get enough of them. Higher %DV here is generally a good sign.