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A bill that bans trans fats in the Canadian food supply has passed the House of Commons.
Trans fats were created as a healthier replacement for saturated fats.
The evidence against their use is based on epidemiology, statistical correlations of data that do not demonstrate cause and effect.
Metabolic studies of trans fats are ambiguous and epidemiological calculations of relative risk can mislead.
In the rush to publish, researchers are liable to present confidence intervals in the worst possible light and exaggerate their import.
The relative risk numbers for trans fats from a number of studies are too low to cause alarm.
Extrapolations of already wobbly risk factors into human body counts are completely unjustifiable.
The ban will make food more expensive and open Canada to trade retaliation. A better recourse is to encourage a healthy lifestyle and a balanced diet.
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