The country's most popular coffeehouse chain is the latest restaurant to drop Trans fats from its baked goods.
Starbucks is dropping the high-cholesterol fats.
The company will no longer have Trans fats in doughnuts, muffins and other snacks in half of its U.S. stores.
The Trans fat ban begins Wednesday in 10 cities, including Chicago, Seattle, San Francisco and Los Angeles.
It will take some time before other locations follow suit.
Starbucks has about 5600 stores across the United States.