U.S. plant geneticists and crop scientists have developed new and cheaper techniques to produce vitamin A-rich corn. The techniques also led them to discover a mutant gene responsible for making corn plants rich in vitamin A or retinol.

The innovation and discovery made by scientists from four different universities, Boyce Thompson Institute, DuPont Crop Genetics Research, the International Maize and Wheat Improvement Center and the U.S. Department of Agriculture can solve the problem of vitamin A deficiency of corn-eating populations in sub-Saharan Africa and America. Nutrition lacking in retinol is a major cause of blindness

A new study finds that taking dietary supplements does not fight the growth of cancer, or alter the course of precancerous conditions.

According to work published in the Journal of the National Cancer Institute, supplements such as vitamins, antioxidants, retinol or garlic were proven to have no effect on the disease