Low Vitamin D Is Associated With Low Testosterone Levels

vitamin d and low testosteroneGo and serve yourself a tall glass of milk!

A new study shows that low vitamin D levels are associated with low testosterone in men over 50… and what affects middle-aged men, as far as testosterone goes, most likely affects younger men, to a lesser extent. So listen up youngsters!

Blood samples in 824 men over 50 were drawn, and analyzed for vitamin D and testosterone levels. 68% of the sample group had low vitamin D levels… and only 11% of this group were taking supplements to make up for it.

On average, men with normal vitamin D levels had higher testosterone levels than men with lower vitamin D levels…

…and an another interesting finding… men with lower vitamin D levels on average had a wider waist and more body fat (and more body fat and a bigger gut lead to lower T levels as well… man, talk about a compounding effect!)

Previous studies have shown that mice with issues in their vitamin D receptors had lower testosterone levels as well… showing that Vitamin D plays a strong role in testosterone production.

Good News, Taking Your Vitamins Should Help

In a study of 54 overweight men, Vitamin D supplementation(3,000 IU daily) for 12 months was shown to increase testosterone levels.  While not a large sample group, these findings are hard to refute, and are supported by the other findings that Vitamin D supports T production.

Natural Ways To Increase Vitamin D Levels

Absorbing sunrays and drinking milk are two methods of taking in Vitamin D. Just make sure to wear some sunscreen if you’re going to be out in the sun a while… reduces skin damage/wrinkling, and risk for skin cancer.

So there you have it, yet another way to keep your testosterone production healthy!

Have a good one!!

-David Carreras aka Mr. Manpower
Mr. Manpower’s Guide to
Overall Manhood Enhancement
the ultimate sex guide for men… “male potency without drugs”

Similar Posts:

Posted in Uncategorized | Tagged , , , , | Leave a comment

Erythropoietin Returns Erectile Function After Prostate Cancer Surgery

Erythropoietin (EPO) improves erectile function following a prostatectomy.

My father had prostate cancer.

If you’re father or brother had prostate cancer, there’s double the chance you’ll get it, so it’s something I think about from time to time.

Knowing that most prostate cancers are slow-growing and can be dealt with well when treated early or just monitored (if very slow), and that most men who have prostate cancer die with it and not from it (meaning they die from another cause, and they just so happen to have the prostate cancer when they die), it doesn’t scare me all that much…


Being “Mr. Manpower”, the all-natural-solution-to-sexual-problems-super-stud-with-infallible-rock-hard-erections… the idea of losing my erectile function from a prostatectomy (removal of prostate to cut out the cancer – erectile dysfunction can occur from it), does indeed scare me.

So… every once in awhile in my research I come across some good news in the world of erectile-function recovery in men who had prostate cancer surgery, which brings me happiness.

This was so interesting, I felt the need to share….

Erythropoietin (aka EPO, hematopoietin, or hemopoietin), Greatly Improves Erectile Function Recovery in Men Who Had A Prostatectomy 

Erythropoietin improves erections after prostate cancer surgery

Today I came across a page on clinicaltrials.gov where they are recruiting men for a study on erythopoietin‘s positive effects on erectile function recovery following a prostatectomy. Erythropoietin (EPO) is a naturally occurring hormone in humans that controls blood cell production.

I figured there must be some studies already published on this, and luckily there are…

I found this study, where 15 patients were given 40,000 IU of EPO via subcutaneous injection the day before their nerve-sparing prostate removal surgery, and 21 were given normal preoperative procedures without the hormone… the idea being that the blood cell stimulating hormone offers protection to the nerves and blood cells in the area.

All men had perfectly functioning erections before the study, and erectile function was measured using the International Index of Erectile Function 5 questionnaire.

A year following surgery, 87% of EPO-treated men were having sex compared to 68% of men not treated with EPO, “although the erythropoietin-treated patients had a significantly greater ability to perform sexual intercourse with minimal or no difficulty”.

In another study, male rats with cavernous nerve injuries (the same nerves surgeons try to spare during prostatectomy; a mini prostatectomy was carried out on the poor rats) were treated with human EPO, either the day before the “injury”, or for 14 days following the injury.

Daily treatment of EPO effectively recovered erections compared to saline treatment, and daily treatment following the injury to the nerve was just as effective as getting the treatment the day before the injury.

Lot of promising findings in this area. Can’t wait to see the results of the latest study on humans.

How To Naturally Increase EPO Production and Other Ways To Improve Erectile Function

I did some brief research on natural ways to improve EPO production, and came across the following tips:

  • Perform hypoxic exercise (practice of limiting oxygen availability while training)
  • Increase iron intake
  • Increase protein intake
  • Stay hydrated

Nothing groundbreaking, but all things to keep in mind. Your best bet will be going the medical route if needing EPO treatment, though. Also, not a big fan of limiting my oxygen either when exercising…

Exercise in general is great for erectile function. Cardio on it’s own has been shown to greatly improve erectile function. No need to limit your oxygen-intake either while doing so.


Have a good one!

-David Carreras aka Mr. Manpower
Mr. Manpower’s Guide to
Overall Manhood Enhancement
The Ultimate Sex Guide for Men… “male potency without drugs”

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Big Differences Between A Man and Woman’s Sexual Needs

Men and women have different sexual needs

A recent survey on masturbation habits, carried out by We-Vibe, a sex toy company, has some interesting findings as to the differences between boys and girls…

While some findings are pretty much cut-and-dried, others provide insights into the sexual / mental makeup of both men and women.

Men are More Turned On By Newer, Fresher Visual/Mental Stimulation… Women Concentrate More On the Type Of Physical Stimulation…

91% percent of males believe watching new porn content is the best way to spice up their routine; while only 67% of women agree.

1-in-3 men fantasize about celebrities while masturbating, only 1-in-5 women do.

While this does show that women like some novelty, or “newness” in their visual stimulation, this is much more of a “guy” thing.

The need for a new video, new porn actress, new act… this is what we like as guys.

On the other hand, women were more concerned with the type, or level, of physical stimulation… 53% of women believe SEX TOYS are the best way to spice up their routine, while only 5% of men use sex toys…

As men, the visual aspect is what gets us off… as to physical stimulation, we stick with what we are used to… as long as our mind is set on fire, we are good with our hands (literally).

With women, it’s more about what they feel, than what they see.

This should come as comforting news for us men… as long as we are trying new things in the bedroom, our girl should be happy (at least in this area). Bring some toys into play, try some new positions or penetration techniques… this should be good enough to keep things exciting for her.

Meanwhile… women should be worried about us… we want something new, fresh and stimulating (a man’s downfall many times… and the reason for sexless relationships after being together for a long time…).

More Interesting Bits Of Information from the Masturbation Survey

There were some more interesting findings in this survey.

These were the favorite celebrity women that guys liked to masturbate to:

  • Jennifer Lopez
  • Carrie Underwood
  • Jennifer Lawrence
  • Jessica Alba
  • Emma Watson
  • Kim Kardashian
  • Megan Fox
  • Selena Gomez
  • Taylor Swift
  • Beyonce
  • Kate Upton

While sexiness obviously played a role in many of these… it seemed like popularity was factored into many guy’s choice of “leading lady”.

20% of men have jerked off in the car, 19% of women have masturbated in their vehicle… 35% of people in the midwest have masturbated in their cars… not sure of the reason for the higher amount of “vehicular masturbation” in that part of the country…

People masturbate more in the winter than in the summer… in the case of the men, at least, I can say this is most likely due to the colder weather leading to increased sperm count, hence need for more release… it’s crazy how the physical can create the mental need…

Now Take These Insights, and Improve Your Sex Life and Relationship

So if you’re girl says “we need to spice things up” in the bedroom, don’t take it as a sign that she’s going to start looking for greener pastures…


Get her some lingerie… go with her to that secluded sex store… take her to a hotel and treat her dirty (some women like that…check first!)… eat her out for a while with some hot, tingly lubricant with flavor, try those fire and ice condoms by Trojan (I love those… she does too)…

Just switch it up!

It’s important you also provide some strong physical stimulation… it appears women like toys, but it might just be something to keep them happy between times she has sex… or she might really like toys!

If she does, get a vibrator, get a dildo… don’t feel replaced or challenged… just add it to your repertoire.

Have a good one!

-David Carreras aka Mr. Manpower
Mr. Manpower’s Guide to
Overall Manhood Enhancement

Posted in Uncategorized | Tagged , , , , , | Leave a comment

Cut Calories To Naturally Improve Your Sexual Performance

how to improve sexual performance naturallyWant to improve your sexual performance without the need for Viagra and testosterone replacement therapy?

Than gain some discipline in the kitchen!

A recent study found that people who reduced their calorie intake by 25% experienced a better performance in the bedroom, along with overall improved mood, health, sleep, physical appearance and other perks.

Not only did they have more sex, and improved sexual performance, but they experienced better relationships as well.

Nice, huh?

Details of the Weight Loss = Better Sex Study

220 non-obese men and women participated in the study. One group practiced the calorie control (CR), which meant a reduction of 25% in calories, while the others continued to eat without restriction.

Data was collected at baseline, after 12 months, and at 24 months.

Self-reported questionnaires examined the subjects’:

  • Mental Health with the Beck Depression Inventory (BDI).
  • Mood with the Profile of Mood States (POMS)
  • Quality of Life with the Rand 36-Item Short Form (36-ISF)
  • Stress with the Perceived Stress Scale (PSS)
  • Sleep with the Pittsburg Sleep Quality Index (PSQI)
  • Sexual Function with the Derogatis Interview for Sexual Functioning – Self Reporting (DISF-SR)

At 24 months, the subjects in the calorie control group had lost an average of 16 pounds, and experienced a significant improvement in mood, reduced tension, increased vigor, as well as improved general health, sex, better relationships, and quality of sleep, compared to those in the “eat whatever” group…

No negative effects were found along with the calorie restriction.

If ever there was a reason to cut out that late night Denny’s run!

Why Does Eating Less Naturally Improve Sexual Performance and Quality of Life?

How dieting improves sexual performanceCalorie restriction has been associated with a longer, healthier life in several species.

In the case of improved sexual function and mental well-being in humans, at least in the case of males, I believe hormones play a strong role.

Excess stomach fat is associated with lower testosterone levels, and higher estrogen levels. This can create a toxic effect on a man’s mental, physical and sexual well-being.

When you’re hormones are out of whack, you will feel more depressed, less confident, experience even MORE weight gain in the gut (which exacerbates the problem), sleep less, which all lead to a poorer sexual function… and it can become a vicious cycle.

Luckily, as this study shows, weight loss has been shown to have the opposite effect. Other studies provide encouraging results as well…

For instance, gentlemen who had a sleeve gastrectomy (a surgery where the size of the stomach is reduced, leading to feeling full quicker) experienced higher testosterone levels after having lost weight following their surgeries.

So How To Cut Calories? A Simple Man’s Rules For Quick and Easy Weight Loss

Good news to start you off… In the above mentioned study, the subjects in the calorie restricted (CR) group said that after getting passed the initial hump, they experienced a reduction in hunger, and were able to easily maintain their lower calorie count once their bodies’ grew accustomed to the new diet.

So keep that in mind if you are setting out to shrink the gut.

Also, there’s a snowball effect… once you lose some gut, and hunger is reduced, you will look better, feel better, and have a more positive mental state, allowing you to “keep up the good work”.

I’m not into keeping a daily calorie journal, or sticking to chicken caesar salads for every meal, but can provide you with some easy-to-follow guidelines to keep the calories down, and burn off the extras:

  • Only drink water – cut out juices and sodas
  • Limit alcohol intake – very high in carbs
  • Start your day with a cereal meant for weight loss (with plenty of fiber and protein). Eat it with milk.
  • Don’t cut out all carbs, but just serve yourself less rice, potatoes, or pasta. Make up for it with a bit more protein
  • Start off with some veggies or fruits before a meal. Will fill you up faster. Drink water before and during meal; same effect
  • Eat mixed nuts and grains
  • Do some cardio on a regular basis – if there is a sport you like, play it, as it won’t feel as much like exercise, and you’ll enjoy yourself (at least compared to running on a treadmill… boring)
  • Sleep well… when you don’t sleep well, the hormones ghrelin and leptin will cause you to 1) crave fatty and sugary foods and 2) keep you from feeling full
  • Cut out, or severely limit starchy, bread-y, and sugary foods
  • Treat yourself to a cheat meal once in awhile… but don’t over do it, and don’t RELAPSE

Stay strong, and keep your eyes on the prize = a stronger, happier mind, body and sexual performance!! And if you can’t cut a whole 25% of your daily calorie intake, I’m sure any significant reduction will make a big difference.

Other Natural Ways To Become A Better Man, and Stronger Lover

While considered a natural part of aging for many men, a testosterone loss is not an absolute law as you age.

It’s a hard battle, but many men experience no, or very minimal, loss of testosterone, as they get older, as long as they stay in good shape.

Have a good one!!

-David Carreras aka Mr. Manpower
Mr. Manpower’s Guide to
Overall Manhood Enhancement
The Ultimate Sex Guide for Men… “male potency without drugs”

Posted in Uncategorized | Tagged , , , , | Leave a comment