Well that’s an unfortunate headline

Study shows bananas make baby boys

LONDON, England (CNN) -- Women can influence the gender of their child with what they eat before they conceive, according to new research that lends scientific support to age-old superstitions about pregnancy.

The discovery shows higher calorie intake prior to conception can significantly increase the chances of having a son while women on restricted diets are more likely to produce daughters.

If that were true, wouldn’t the ratio of men to women have grown gradually over the decades as calorie intakes have grown?