Labels for canned corn can differ because the FDA permits reported nutrition values to be within 20% of actual measurements, creating legal flexibility. Natural agricultural variation—soil, weather, harvest timing—and differences in kernel size, moisture, sweetness, and starch content change carbohydrate, sugar, and fiber amounts. Canning processes such as cooking time and amount of brine alter moisture and sodium levels, and manufacturers may update labels after new testing or analyses. Those combined factors lead to measurable shifts in calories, carbohydrates, and sodium across cans, which can complicate consumer tracking of nutrient intake.
If you're in the grocery store grabbing a couple cans of corn - whether they're creamed corn, kernel, sweet corn, or white or yellow corn - you could be in for a surprise when you look at the nutrition labels. You may find that the amount of calories, carbohydrates, and even sodium in each is different. So how is it possible for what seems like the same product to have such wildly different nutrition facts?
In the United States, the FDA allows food manufacturers some flexibility in nutrition labeling. As long as the numbers reported on the label fall within 20% of the actual value, the label is considered compliant. That means that two batches of canned corn from the same producer could be slightly different in moisture content, kernel number or size (which can differ on the cob), or sweetness -
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