
The researchers have discovered that a low fat diet with periods of long fasts favors girls.
Dr. Cheryl Rosenfeld, of the University of Missouri, and colleagues stated, "High calorie diets generally favour birth of males over females, whereas low calorie diets tend to favour females over males.
"In humans and mice, food restriction and a suboptimal diet during the period around conception and early pregnancy also lead to a surfeit of daughters, most probably due to selective loss of male foetuses, the most vulnerable sex in the womb," Dr. Rosenfeld added.
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