In the article, “Understanding the Complexity of Trans Fatty Acid Reduction in the American Diet: American Heart Association Trans Fat Conference 2006: Report of the Trans Fat Conference Planning Group,” by Eckel et al, which appeared in the April 24, 2007, issue of the journal (Circulation. 2007;115:2231–2246), an error appeared on page 2237. In the section “Considerations for Evaluating and Choosing Trans Fatty Acid Alternatives,” the second item in the second bulleted list, which appears in the second column, should be changed to the following:
In the development of new varieties of oil seeds, long lead time is required. The decision about which specific seeds to grow is made several years in advance of oil delivery; thus, contract planting is necessary. The normal 4-year cycle begins with seed decisions in September of year 1 in anticipation of demand by the food industry in year 4. Seed production contracts are finalized in March of year 2. Farmers are contracted by January of year 3, with the delivery of oils in year 4. However, for seed companies that have ramped up production to address the rapidly growing market demand, the cycle could be shorter, from around 1 year to 20 months.
This error has been corrected in the current online version.