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DIET's Role in Gender Swaying
Understanding how diet influences the chance of conceiving a boy or girl has captivated scientists for decades, leading to a wealth of research that supports the theory of diet-based gender swaying.

The Foundation: Curt Herbst's Discovery

In the 1930s, scientist Curt Herbst observed a remarkable phenomenon in marine worms: altering potassium levels in their environment could sway the gender ratio of their offspring. This groundbreaking observation hinted at the potential influence of dietary minerals on gender outcomes.

Expanding Knowledge Through

Animal Research

Building upon Herbst's work, subsequent animal studies reinforced this connection. Research across species like rats and sheep consistently showed that diets rich in sodium and potassium tended to yield more male offspring, while those abundant in calcium and magnesium favored females.


A study concluded, "A diet with a relative excess of sodium and potassium ions favors the birth of males, while a relative excess of calcium and magnesium ions in the diet favors the birth of females." These findings provided compelling evidence for the role of dietary minerals in determining gender.

Human Research Supporting the Connection

Transitioning to human studies, researchers like François Papa in the 1980s observed similar trends. Papa's investigations, involving dietary adjustments before conception, demonstrated significant success in gender swaying. High sodium and potassium diets were associated with more male births, while high calcium and magnesium diets leaned towards females, boasting an above 80% success rate, which is supported by recent studies.

In-Depth Findings and Global Confirmation

Research worldwide, including studies from esteemed institutions like Oxford University, affirmed the link between preconception mineral intake and gender outcome. These studies confirmed that diets higher in sodium and potassium preconception were more likely to result in boys, whereas increased calcium and magnesium levels were associated with girls. A recent 2022 study also found a success rate of over 80%, underscoring the likely link between maternal pre-conception diet and gender outcome.

A study from 2016 concludes: 

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"This study concluded that the diet method (relative excess of sodium and potassium ions) would favour the birth of males, while relative excess of Ca and Mg ions in the diet would favour the birth of females.

So by altering diet to include and exclude certain food,

the condition in the reproductive tract will be directly affected;

increasing the number of a particular sex."

For more information on studies - on animals and humans -  or for a deeper dive into the science behind diet-based gender swaying, please sign up to the Swaying Masterclass or get in touch.

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