A new Dutch study reports that diet could be a contributing factor in determining a baby’s sex. The study, conducted by Gender Consult along with Delft and Maastricht Universities, asked 32 women who had given birth to boys to eat a diet high in calcium and magnesium, including foods such as spinach and black beans. Over a five-year period, 26 of the women gave birth to girls while only six had boys. The researchers believe mineral levels in the mother’s blood render the unfertilized egg more receptive to female chromosomes. Annet Norlander, a biologist at the center, said the results are significant for those wishing to influence the sex of their child.