Scientists Claim Probiotic Yoghurts Increase Sexual Prowess In Mice

The Huffington Post UK  |  By Posted: 08/05/2012 12:24 Updated: 08/05/2012 12:24

Yoghurt Libido

When scientists from Massachusetts Institute of Technology began their research into the link between probiotics and obesity they also discovered another ‘perk’ of yoghurt and health – it makes mice slimmer and more sexual.

Researchers discovered that male lab mice had “more swagger" after being fed mouse-sized vanilla probiotic yoghurt, compared to those who ate a normal mouse diet.

Along with a super shiny coat of fur, scientists noticed a difference in the way the mouse carried itself, prompting them to investigate further.

“We knew there was something different in the males, but we weren’t sure what it was at first,” researcher Susan Erdman told ABC News. “You know when someone’s at the top of their game, how they carry themselves differently? Well, imagine that in a mouse.”

Alongside changes in mice's attitude and sexual prowess, scientists also discovered that mice on the probiotic diet had larger testicles – 5% bigger than mice on a non-yoghurt diet – which was probably the reason behind their new-found confidence.

“Almost everything about the fertility of those males is enhanced,” Erdman said, explaining how yogurt-eating males mated faster and produced more babies. “There were legitimate physiological differences in males fed probiotics, not just the extra sexiness.”


Researchers believe the probiotics in the yoghurt triggered the change in sexual attitude in mice and noticed a physical change in female mice too as they grew even shinier-looking fur than the males.

This study follows a separate study, which discovered that men and women who drink a daily glass of pomegranate juice experience a surge of testosterone, which increases their sexual desire and libido.

Researchers from the Queen Margaret University in Edinburgh found that pomegranates 'significantly increased’ the sex drive in both genders after testing 58 volunteers aged between 21 and 64.

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