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Soyoung Lim, a researcher from Kansas State University, developed the variety of sweet potato with a purple skin and flesh to boost its cancer-fighting properties.
Lim said the colouring contained the chemical anthocyanin, which lowers the risk of cancer and could even slow down some types of the disease. Scientists have found anthocyanin slows down the growth of cancerous cells in colon cancer.
Source: The Times Of India