Sweet potato

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The Independent Online
Lollipops made from potatoes that are sweeter than conventional lollies but have no more calories than a baked potato could be on the way.

According to Philip John, from the University of Reading, German scientists have already made 'sweet potatoes' by altering the DNA of the plant so that the potato contains sugar instead of starch. Other vegetables have been made sweeter by adding a gene to make the plant produce monellin, a protein 100,000 times sweeter than sugar.