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4 Things to Know About Trans Fatty Acids4 Things to Know About Trans Fatty Acids

Source: MyFoodDiary.com

things to know about trans fatty acids

Artificial trans fatty acids are formed when oils are exposed to high heat and high pressure in the presence of hydrogen gas, a process called hydrogenation. This makes an unsaturated fat more solid at room temperature, which extends its shelf life and improves texture in processed foods.

Are trans fatty acids unhealthy?

Researchers once thought trans fats were better than saturated fats because they were unsaturated. However, we now know that trans fats increase LDL cholesterol (bad cholesterol) and they decrease HDL cholesterol (good cholesterol), a dangerous combination that increases the risk of heart disease.

What foods contain trans fatty acids?

Trans fat can be identified in foods as partially hydrogenated oils. Any product that lists partially hydrogenated oil on the ingredients list will contain trans fatty acids. The good news is that due to increased awareness and nutrition labeling laws, fewer foods contain trans fat, and intake has decreased in recent years.

Common foods that contain trans fatty acids are:

  • Commercial baked goods (cakes, cookies, doughnuts)
  • Fried foods (French fries, fish sticks, fried chicken)
  • Margarine and vegetable shortenings
  • Chips and crackers
The U.S. Food and Drug Administration (FDA) announced in June of 2015 that all restaurants and grocery stores would be required to eliminate partially hydrogenated oils (the main source of trans fats) from their products within three years. While the ban officially took effect on June 18, 2018, the FDA provided a one-year extension to several manufacturers. The FDA also extended the deadline for removing these products from grocery store shelves to January 1, 2021. For these reasons, you should continue checking food labels for trans fats and partially hydrogenated oils.

How much trans fat can I eat?

You should eliminate artificial trans fats from your diet. However, naturally-occurring trans fats found in meat and dairy products have not been found to possess the harmful qualities associated artificial trans fats.

Should I rely on food labels for trans fat information?

Since 2006, the Food and Drug Administration (FDA) has required food manufacturers to list trans fat on the Nutrition Facts label. Unfortunately, if the food contains fewer than 0.5 grams per serving, the FDA allows manufacturers to say that the item contains 0 grams of trans fat. These small amounts that slip through the cracks add up. The only way to play it safe is to read the ingredients and exclude foods that contain hydrogenated oils. Better yet, choose minimally processed foods for the bulk of your diet, such as fresh fruits and vegetables, whole grains and cereals, beans and legumes, low-fat or fat-free dairy products, and nuts and seeds.

Lori Rice, M.S., is a nutritional scientist and author with a passion for healthy cooking, exercise physiology, and food photography.
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