One of the main attractions in "The Edible Monument" exhibition at the Getty Center in Los Angeles is a nine-foot long sugar palace showing the Greek sorceress Circe meeting Odysseus' men. Abbie Fentress Swanson for NPR hide caption

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Ah, sugar — we love the sweetness, but not the calories. For more than a century, food technologists have been on a quest for the perfect, guilt-free substitute. The latest candidate, allulose, is not available to consumers in a crystal form: It is a syrup only available to manufacturers. Ryan Kellman/NPR hide caption

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In The Search For The Perfect Sugar Substitute, Another Candidate Emerges
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Joseph Severn's portrait of Percy Bysshe Shelley. The radical 19th century poet practiced the politics of the plate. For Shelley and other liberals of his day, keeping sugar out of tea was a political statement against slavery. Joseph Severn/Wikimedia hide caption

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The average American consumes the equivalent of 19.5 teaspoons a day in added sugars, but there are no federal guidelines recommending a limit. iStockphoto hide caption

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The majority of voters in San Francisco and Berkeley, Calif., voted in favor of a soda tax, but the measure didn't gain the required two-thirds majority required in San Francisco. Justin Sullivan/Getty Images hide caption

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A mock-up of a warning label for sodas and sugary drinks proposed in California by public health advocates. California Center for Public Health Advocacy hide caption

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Even seemingly healthful foods can contain unexpected spoonfuls of sugar. Meg Vogel/NPR hide caption

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Sweet Tooth Gone Bad: Why 22 Teaspoons Of Sugar Per Day Is Risky
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Tractors sit on a sugarcane plantation on the land of a Guarani-kaiowá indigenous community in Brazil. Tatiana Cardeal/Courtesy Oxfam hide caption

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A performer drinks a soda in Ahmedabad, India in 2010. A study found that rising diabetes prevalence in countries like India is strongly tied to sugar consumption. Sam Panthaky/AFP/Getty Images hide caption

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Adults who upped their intake of sugary foods or drank sugar-sweetened drinks gained about a pound a year, a study found. Umberto Salvagnin/Flickr hide caption

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If you look very closely, you'll see "evaporated cane juice" in the ingredients list on this yogurt. A California woman is suing the Chobani yogurt company over its use of the term. Karen Castillo Farfán/NPR hide caption

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