Ask a Food Lawyer: Why are some foods containing partially hydrogenated oils labeled “zero grams trans fat”?

Nutrition Facts for Land O Lakes “Fresh Buttery Taste” Spread

Serving Size: 1 tbsp (14g)

Amount Per Serving

Calories 70
Calories from Fat 70

Total Fat 8 g 12%

Saturated Fat 2 g 10%

Trans Fat 0 g

Ingredients: Liquid Soybean Oil, Water, Partially Hydrogenated Soybean Oil, Buttermilk*, Hydrogenated Soybean Oil, Contains Less Than 2% of Salt, Hydrogenated Cottonseed Oil, Cream*, Distilled Monoglycerides, Soy Lecithin, Potassium Sorbate (Preservative), Lactic Acid, Natural and Artificial Flavor, Vitamin A Palmitate, Beta Carotene (Color).

Short Answer: Because FDA says it’s OK to lie to you.

Labeling is one of the more complex areas of food law, full of statutes, regulations, exemptions, and exceptions. In 1990, Congress updated food labeling law with the Nutrition Labeling and Education Act, which gave the Food and Drug Administration authority to require specific types of nutrition labels on most food products. The handy Nutrition Facts panel you see on foods today displaying calorie, carbohydrate, fat, protein, and other nutrient amounts is the result of FDA implementing this law.

Originally, trans fats were not on the list of nutrients required to be labeled. In 2003, prompted by health concerns over the increased risk of coronary heart disease linked to lab-created partially hydrogenated oils, FDA issued a rule adding trans fats to the list of items required on food labels. (The rule was finalized in 2006.)

But, here’s where thing get a little tricky. FDA regulations also contain an exception for what the agency calls “insignificant amounts” that are “dietetically trivial and physiologically inconsequential.” This allows manufacturers to fudge the numbers. That’s why food manufacturers will often display “0 grams” when the food contains an “insignificant amount” of that ingredient. Exactly what FDA deems “insignificant” varies. (Here’s a chart in an FDA guidance document that breaks it down.)

Specifically, for all fats (trans, saturated, and unsaturated), the threshold is 0.5 grams per serving. So, if a food contains less than half a gram of trans fat per serving, the nutrition label will almost always say “0 grams” next to trans fat. This is how we get inconsistent food label that lists “0 grams” trans fat on the Nutrition Facts panel (or even worse, call-outs on the front of the package like on this fake butter from Land O Lakes) when the product is actually made with partially hydrogenated oils, which contain trans fat.

I asked registered dietitian Andy Bellatti if this is really such a big deal. Yes, he says, because it’s easy to “rack up one or two grams of trans fat in a day in a few servings. It may not sound like much, but research shows that tiny amounts inflict severe cardiovascular damage.” Yikes. Thanks a lot, FDA.

So don’t fall for the “0 grams trans fat” trick. Just skip the front-of-the-box hype and check the nutrition label plus the ingredient list on the back to see what’s really lurking inside. And always try to minimize your intake of processed food.

Thanks to Neil Thapar for research and drafting assistance for Ask a Food Lawyer. Got a question? Email me: (Sorry, but I can’t answer all questions.)

5 Responses to “Ask a Food Lawyer: Why are some foods containing partially hydrogenated oils labeled “zero grams trans fat”?”

  1. patti b says:

    Thanks, Michele. Not surprising, but so darn frustrating and misleading! The FDA seems to seldom have our best interests in mind.

  2. Laurel says:

    The answer is to stop giving regulatory bureaucrats the power to do this kind of stuff.

  3. I wish the FDA would really tighten up their policies and regulate the industry a bit more aggressively.

    Too many companies are ‘playing on numbers’ to make the consumers think their product is better… when it’s not.

  4. LisaMD says:

    Excellent article with vital info for public to understand. Will the recent ruling to eliminate trans-fats from our foods actually do that? When?

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