It's easy to assume nutrition labels have always been on food, but for most of the 20th century, packages told you far less than they do now. Here's what came before the modern label.
The early rules: honesty, not nutrition
The 1906 Pure Food and Drug Act and the 1938 Food, Drug, and Cosmetic Act focused on preventing adulteration and misbranding — making sure products weren't contaminated or dishonestly described. They required truthful labeling and, over time, ingredient lists, but they did not require telling consumers how many calories or how much fat a food contained.
Voluntary nutrition labeling
Starting in the 1970s, the FDA introduced nutrition labeling, but mostly on a voluntary basis — required only if a product was fortified or made a nutritional claim. The result was a patchwork: some products listed nutrients, many didn't, and the formats varied, making comparison between products difficult or impossible.
Health claims run wild
By the 1980s, food packages increasingly advertised health benefits — 'low fat,' 'high fiber,' 'helps your heart' — with little standardization or oversight. Terms weren't defined, so 'light' or 'healthy' could mean almost anything. Consumers and regulators alike recognized the system had become misleading.
The pressure for reform
As research increasingly tied diet to heart disease, cancer, and other conditions, public-health advocates argued that consistent, mandatory nutrition information was essential. That pressure produced the Nutrition Labeling and Education Act of 1990, which standardized the label, defined claim terms, and made nutrition disclosure mandatory — ending the era of optional, inconsistent labeling.
The through-line
The pre-1990 story shows how recent the idea of guaranteed nutrition transparency really is. Each step — ingredients, then voluntary nutrition, then mandatory labels, then added sugars — expanded what consumers can know. Made-to-order drinks, which still carry no label, are arguably the next frontier.