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California has become the first state to ban artery-clogging trans fats from restaurants. Registered Dietician Keri Glassman shows Russ Mitchell how to avoid trans-fat at the grocery store.

Other Sources: MSNBC.comThe New York Times * The Huffington Post



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From curbside snack carts to four-star restaurants, New York City chefs have until next summer to rid their kitchens of trans fat. It’s a bold move, but a necessary one, according to city health officials.

“When you look at the evidence, there’s no question artificial trans fat increases the risk for coronary heart disease,” says Sonia Angell, M.D., director of cardiovascular disease prevention and control at New York City’s Department of Health.

“The most conservative estimates show that the replacement of these fats with heart-healthy alternatives can decrease coronary artery disease risk by 6 percent, and it is likely even higher.”

In fact, a recent Harvard University study showed that women with low blood levels of trans fat are three times less likely to develop heart disease…read more

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There are suggestions that the negative consequences of trans fat consumption go beyond the cardiovascular risk. In general, there is much less scientific consensus that eating trans fat specifically increases the risk of other chronic health problems:

  • Cancer: There is no scientific consensus that consumption of trans fats significantly increases cancer risks across the board.[36] The American Cancer Society states that a relationship between trans fats and cancer “has not been determined.”[44] However, one recent study has found connections between trans fat and prostate cancer.[45] An increased intake of trans-fatty acids may raise the risk of breast cancer by 75 per cent, suggest the results from the French part of the European Prospective Investigation into Cancer and Nutrition.[46][47]
  • Diabetes: There is a growing concern that the risk of type 2 diabetes increases with trans fat consumption.[36] However, consensus has not been reached.[4] For example, one study found that risk is higher for those in the highest quartile of trans fat consumption.[48] Another study has found no diabetes risk once other factors such as total fat intake and BMI were accounted for.[49]
  • Obesity: Research indicates that trans fat may increase weight gain and abdominal fat, despite a similar caloric intake.[50] A 6-year experiment revealed that monkeys fed a trans-fat diet gained 7.2% of their body weight, as compared to 1.8% for monkeys on a mono-unsaturated fat diet.[51] Although obesity is frequently linked to trans fat in the popular media,[52] this is generally in the context of eating too many calories; there is no scientific consensus connecting trans fat and obesity.
  • Infertility: One 2007 study found, “Each 2% increase in the intake of energy from trans unsaturated fats, as opposed to that from carbohydrates, was associated with a 73% greater risk of ovulatory infertility…”.[54]

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