Understanding Food Labels — How to Read Nutrition Facts

Food labels are your best tool for making informed nutrition choices. But they can be confusing — and sometimes intentionally misleading. Here's how to read them like a pro.

The Nutrition Facts Panel

Every packaged food in the US must display a Nutrition Facts label. Here's what to focus on:

1. Serving Size

This is the most important thing to check first. All the numbers on the label are per serving — not per package. A bag of chips might say 150 calories, but if the bag contains 3 servings, you're eating 450 calories.

⚠️ Watch out: Many packages contain 2-3 servings that look like single servings. Always check "Servings Per Container."

2. Calories

The calorie count tells you how much energy you get per serving. If you're tracking calories with our TDEE Calculator, this is the number you'll log.

3. Macronutrients

Total Fat: Check the breakdown — saturated and trans fats are the ones to limit.
Total Carbohydrates: Look at dietary fiber and added sugars. Fiber is good; added sugars should be minimized.
Protein: Important for satiety and muscle maintenance. Higher is generally better.

4. Percent Daily Values (%DV)

These percentages are based on a 2,000-calorie diet. A quick rule: 5% DV or less is "low," 20% DV or more is "high."

Reading Ingredient Lists

Ingredients are listed in order by weight — the first ingredient makes up the largest portion of the food. Here are red flags to watch for:

Sugar (or its aliases: high fructose corn syrup, dextrose, maltose, sucrose) in the first 3 ingredients
"Partially hydrogenated" oils (trans fats)
Long lists of unrecognizable chemicals

💡 Pro Tip: If the ingredient list has more than 5 items you can't pronounce, consider a simpler alternative.

Marketing Claims to Ignore

"Natural" — Has no FDA-regulated meaning. It's essentially meaningless.
"Low fat" — Often means high sugar to compensate for flavor.
"Sugar-free" — May contain artificial sweeteners or sugar alcohols.
"Multigrain" — Just means multiple grains are used. Doesn't mean whole grain.

Put It Into Practice

A food scale and nutrition journal help you connect labels with real portion sizes.

Amazon Basics Kitchen Scale
Verify serving sizes instead of guessing. The label says 28g — but what does 28g look like?
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Nutrition Tracker Journal
Log what you eat daily. Knowledge + tracking = results.
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