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Plum jam is a sweet, spreadable preserve made by cooking down ripe plums with sugar and often a touch of lemon juice until thick and glossy. It's a classic way to enjoy the fruit's vibrant flavor year-round, popular in many European, Asian, and North American households.
Plum jam is high in carbohydrates, primarily from natural fruit sugars and added sugar, with negligible fat or protein. A typical tablespoon serving provides around 50 calories and small amounts of vitamin C and potassium from the plums.
Historically, jam-making was a crucial method for preserving seasonal fruit before refrigeration, and plum jam's deep purple color comes from anthocyanins, powerful antioxidants also found in blueberries and red cabbage.