The study authors found a natural way for women to increase at least slightly chances of having a boy or a girl by consuming large amounts of food such as bananas and cereals, or by some restriction to their diet. Scientists at the University of Oxford and Exeter have interviewed 740 women who became pregnant for the first time on the diet for a year before conception. They then divided the women into three groups – high, medium and low calorie.They found that 56% of women in the group with a high caloric intake gave birth to boys, compared with 45% in patients with low caloric intake. None of the women suffered from obesity and was not aware of the field of their unborn child during pregnancy.
“The first time we have demonstrated a clear link between a diet of mother and sex of the baby,” – said Fiona Mathews, a specialist in mammalian biology at the University of Eksetora, who led the research.”It seems that a mother can affect the survival of the sperm or the fertilized egg in the very early stages, possibly even before reaching the uterus.”
More detailed study of the diet of mothers, the researchers concluded that certain nutrients were key to this effect, she said.
“We can confirm the rumors that eating bananas, then there is a large amount of potassium is associated with the birth of boys, and high sodium intake. But the belief that consumption of large quantities of milk promotes the birth of girls, was not confirmed. In fact, increased intake of calcium means that a woman will give birth to a boy soon. “”It seems not so important if you receive the energy in the form of carbohydrates or fats, it is important how many calories you consume,” – she added.
The study, published in Proceedings of the Royal Society, showed that 59% of women who ate cereal for breakfast, gave birth to boys, compared with 43% of women who rarely ate cereal or never ate. Data on consumption of nutrients collected in three periods: usual intake before conception, the consumption for 16 weeks of pregnancy (early pregnancy) and consumption between 16 and 28 weeks of gestation (late pregnancy). A woman can increase the effect of significantly changing their diet, although researchers cautioned that a high intake of salt, or a sharp change in the level of other nutrients could be harmful.
“If you want a boy, it will be useful to have porridge for breakfast every morning, and within reasonable limits, to consume in reasonable amounts of sodium, potassium and calcium, plus the required amount of protein. If you want a girl – all the way around, and also within reasonable limits.”
In a study of the evolutionary sense: it reflects the similar effects in animals. Females are born more frequently with scant food, since they are more likely to subsequently produce light at least not numerous offspring. With males it’s like a lottery: some produce many offspring into the world, others – not one.”In good times, it makes sense to invest in boys because you can produce a powerful warrior, who will make the light much more grandchildren than a daughter” – said Matthews.
Professor Stuart West of Edinburgh University, warned that women should be very cautious about using diet to influence the sex of offspring. He added that similar studies in animals have shown a variety of effects, and warned that changing diet could have implications for the health of mother and child.