Skip to comments.Mice That Eat Yogurt Have Larger Testicles (Probiotics may endow rodents with a "mouse swagger")
Posted on 04/27/2012 1:42:49 AM PDT by rawhide
Last summer a team of researchers from the Massachusetts Institute of Technology set out to better understand the effects of yogurt on obesity. They were following up on the results of a long-term study from the Harvard School of Public Health that had suggested yogurt, more than any other food, helped to prevent age-related weight gain. The M.I.T. team, led by cancer biologist Susan Erdman and evolutionary geneticist Eric Alm, wanted to replicate the work in mice. The researchers took a group of 40 males and 40 females and either fed the animals a high-fat, low-fiber, low-nutrient diet meant to mimic junk food or fed them standard mouse meals. They then supplemented half of each diet group with vanilla-flavored yogurt.
Their goal was to understand how a probiotic diet affects rates of obesity and its related complications, including cancer. But the most entertaining aspects of all this were things we didnt anticipate, Erdman says.
First, the scientists noticed that the yogurt-eating mice were incredibly shiny. Using both traditional histology techniques and cosmetic rating scales, the researchers showed that these animals had 10 times the active follicle density of other mice, resulting in luxuriantly silky fur.
Then the researchers spotted something particular about the males: they projected their testes outward, which endowed them with a certain mouse swagger, Erdman says. On measuring the males, they found that the testicles of the yogurt consumers were about 5 percent heavier than those of mice fed typical diets alone and around 15 percent heavier than those of junk-eating males.
More important, that masculinity pays off. In mating experiments, yogurt-eating males inseminated their partners faster and produced more offspring than control mice. Conversely, females that ate the yogurt diets gave birth to larger litters and weaned those pups with greater success. Reflecting on their unpublished results, Erdman and Alm think that the probiotic microbes in the yogurt help to make the animals leaner and healthier, which indirectly improves sexual machismo.
The findings could have implications for human fertility. In ongoing work, a team led by Harvard nutritional epidemiologist Jorge Chavarro has looked at the association between yogurt intake and semen quality in men. So far our preliminary findings are consistent with what they see in the mice, Chavarro says.
Hmm, I really like yoghurt, so maybe I’ll run my own clinical trial. I don’t have much hair, so I’ll have to look at other parameters to judge the efficacy.
It's the vanilla not the yogurt! LOL
This study is useless. They should have used plain yogurt.
I feel sorry for the mice. Even they can't escape TSA. Mice and men.
They fed them banana yogurt, really.
WTF realy nice.
This is bad news considering the gov'ment wants to give out free contraceptives.
Yogurt should be banned. Should be a controlled substance. It'll save the taxpayers lotsa money.
Slow down FRiend. Please.
LOL! This story confirms something I heard when I lived in Kreuzberg, Berlin.
There’s tons of Turks in Kreuzberg and Neukölln districts, and if you’re there for any length of time, you will inevitably see them drinking Ayran, a Turkish yogurt drink.
One time, after I’d gotten to know some of my neighbors, I asked them why they’re always guzzling the stuff, and the answer I got, “Don’t you know? Yogurt makes you a sex machine; your girlfriend or wife will think you’re a pornstar if you drink it!”
I thought he was just joking, or possibly drunk. Guess he was right; I learn something new every day, and usually from the unlikeliest of sources.
So eating yogurt will give you testicles the size of mice?
Goodness, Graceness, Great mouse balls of fire.....
Anyone have that pic of the chipmunk w/ “big nuts”?
EAT MORE YOGURT!!!
I think we should send a few cases to the GOP...just sayin’
Who paid for this study?
“I think we should send a few cases to the GOP...just sayin”
You beat me to the post.
They should have used plain yogurt.
That’s what I was thinking. And I am assuming that, in addition to the vanilla, the yogurt had sugar added to it.
I would think that a group of professional scientists would know better than to introduce more than one variable.
How do you weigh testicles?
Look out behind you in the refrigerator aisle.