Why "Healthy" Packaged Foods Are Often Less Healthy Than They Look

How Front-of-Pack Claims Mislead Shoppers

Food manufacturers invest heavily in front-of-package marketing — and for good reason. Research consistently shows that label claims like "natural," "wholesome," and "made with real fruit" influence purchasing decisions, often more than the Nutrition Facts panel on the back. The problem is that many of these terms carry little or no legal weight. The FDA does not have a formal definition for the word "natural," meaning virtually any product can use it regardless of its ingredient list.

This gap between perception and reality is known as the "health halo" effect — a well-documented cognitive bias in which one positive attribute (a health claim on the label) causes consumers to judge a product as healthier overall. Studies have shown that people tend to underestimate the calorie content of foods bearing health-oriented labels, and may eat larger portions as a result.

Understanding how to cut through this marketing language is one of the most practical nutrition skills you can develop. Our guide to reading a Nutrition Facts label walks through exactly what the numbers on the back panel mean — and which ones deserve the most attention.

What the Evidence Says About Common Label Terms

Several widely used label claims deserve particular scrutiny:

• "Multigrain" means a product contains more than one type of grain — but those grains may all be refined, stripping out fiber and nutrients. Look for "100% whole grain" or "whole wheat" as the first ingredient instead.
• "Light" can refer to reduced fat, reduced calories, or even just lighter color or texture. The term requires context: light in what, compared to what?
• "Low sodium" has a legal threshold (140 mg or less per serving), but serving sizes are often unrealistically small, so actual sodium intake can be much higher per realistic portion.
• "No added sugar" does not mean low in sugar — products may still contain high amounts of naturally occurring sugars, concentrated fruit juice, or sugar alcohols.

Added sugars in particular are worth watching closely. The distinction between added and naturally occurring sugars has meaningful implications for health — a topic explored in depth in our article on added vs. natural sugars in the American diet.

Building a Smarter Label-Reading Habit

The most reliable way to evaluate any packaged food is to flip the package over and read both the Nutrition Facts panel and the ingredient list together. A few practical principles help:

1. Check the serving size first. All the numbers on the panel — calories, sodium, sugar — are based on that serving. If you typically eat twice the listed serving, double every value.
2. Scan the ingredient list. Ingredients are listed in descending order by weight. If a refined grain, added sugar (in any of its many names: cane syrup, dextrose, maltose), or sodium-heavy ingredient appears in the first three slots, the product's nutritional profile is shaped by that ingredient.
3. Don't stop at the calorie count. Two products with identical calories can differ substantially in fiber, protein, saturated fat, and micronutrient content — factors that influence satiety and long-term health.

The same skepticism that helps with food labels applies broadly to product descriptions across categories. Our piece on reading product descriptions without getting misled covers how vague marketing language operates in other consumer categories as well.

This article is for general informational and educational purposes only and is not a substitute for personalized nutrition advice from a qualified healthcare or registered dietetics professional.