Vitamin D and infertility

We previously discussed the relationship of fertility to vitamin D, but a new report adds credence to the idea that infertility may be due in great part to vitamin D deficiency. Dr. Anne Clark, who works at the Fertility First clinic in Sydney, Australia, assessed the blood levels of vitamin D among about 800 men who were unable to produce a pregnancy in their wives. About a third had low levels of vitamin D. Interestingly, after a regimen of lifestyle changes (stopped smoking, coffee drinking and alcohol consumption) and vitamin D supplementation, 40% of the men were able to impregnate their wives, probably due to improvement in the quality of sperm.
Dr Clark stated that "Vitamin D and folate deficiency are known to be associated with infertility in women, but the outcomes of the screening among men in our study group came as a complete surprise."

Though it may have surprised Dr. Clark, the results of her findings should not be surprising to those who read my previous blog on vitamin D and infertility. In that blog, I mentioned that female rats mated to vitamin D-deficient males produced 73% fewer pregnancies. Nearly all tissues of the body contain vitamin D receptors (VDR). For the testes to function properly, those receptors must be stimulated by vitamin D. For couples who are having difficulties in producing a pregnancy, this information is critically important.

Source: drsorenson.blogspot.com/

How to Get Your Vitamin D in the Winter

(NaturalNews) Over the last year, the evidence has been mounting that getting enough vitamin D is absolutely essential for our health and wellbeing. Without question, the best source of vitamin D comes from sunshine, the source of all life. This is contrary to the advice that has been given in the past, and is still given, by many doctors and other health practitioners which say the sun is dangerous and we need to avoid it as much as possible. But what do we do if we live in a place where there is not enough sunshine for us to have our essential dose of this vitamin? Unless people live in a warm and sunny place that is not too far away from the equator, getting enough sunlight in the winter is extremely difficult.

Among other complaints, vitamin D deficiency can result in:

•Osteoporosis

•Cancer, especially bone, breast and prostate

•Adrenal Insufficiency

•Alzheimer's disease

•PMS

•Depression (especially in the winter)

•Parkinson's

For those who live in a place where there is not a lot of strong sunshine during the winter months, it is essential to find ways of getting this important vitamin. Here are 6 things that we can do to guarantee we get enough vitamin D this winter:

1.Spend as much time outdoors as possible to take advantage of what little sun there is, especially if you live in a place such as the southern part of the England which is often grey, but is still fairly mild and has bouts of sun most weeks. If it is a sunny day, eat your lunch outside and go for a walk, even if your face and hands are the only part of you that isn't covered up. It may not be your entire dose of vitamin D, but it is a start and breathing in fresh air will be beneficial on many levels.

2.Don't wear sunscreen. It is amazing how many skin creams, especially the expensive ones, come with sunscreen in them. This of course is due to the misguided view that we should never be out in the sun without sunscreen on. We must maximize the little amount of sunshine that we have access to, which means avoiding sunscreen. Further, creams with sunscreen in them are often highly toxic for our bodies.

3.Sun showers are vertical tanning units which are often available at health clubs and beauty salons. They increase the amount of vitamin D in the body. Three minutes is all that is needed to bring a little piece of summer into your life. People claim that sun showers completely transform their winters.

4.While pasteurizing milk destroys the vitamin D, unpasteurized milk still has this precious vitamin, as well as many other health enhancing nutrients in tact. It is also worth noting that a lot of pasteurized milks claim to be fortified with vitamin D; however it is much more difficult for the body to use fortified nutrients than the real thing.

5.Mackerel, salmon, and egg yolks are the foods with the highest amount of vitamin D, so if you are not a vegetarian, eat more of these foods in the winter. In saying that, make sure that you are getting fish that is from clean waters so that you don't pollute your body with toxins that are found in the sea. Alaskan wild salmon is one of the cleanest fish you can eat because the waters there are still relatively unspoiled. And non organic eggs are packed with chemicals, hormones and antibiotics that you don't want to go near.

6.Vitamin D can be found in cod liver oil. Again, make absolute sure that the brand you are using is of the absolute highest quality. Really research which brand is most pure.

Source: Natural News

Vitamin D: The Real Facts,Truths, and Sources of The Sun Vitamin

When you research, read, and watch the news as much as I do, you can see the new nutrient and supplement trends coming a mile away. Sometimes they’re valid, other times they aren’t. I can say for certain to buckle up and hop on the D-train because it’s here to stay. In fact, this isn’t a newly found miracle baby; this is an age old savior that we’ve been neglecting.

What is Vitamin D?

Vitamin D is a fat soluble steroid hormone (and if we weren’t playing fast and loose with the terminology, it technically isn’t a vitamin at all). The main job of vitamin D is to maintain normal blood levels of calcium and phosphorus. Note that’s the main job. It’s said that over 200 genes are affected by vitamin D. It doesn’t matter where you turn, its uses are everywhere. Bone, heart, insulin, depression, pain, happiness, cancer, fibromyalgia, thyroid… you name it, vitamin D plays a role.

Michael F. Holick, a leading researcher on the importance of vitamin D, has said that “Vitamin D deficiency is the disease of neglect.”

And he couldn’t be more right.

The cure for rickets — a widespread epidemic in the children of the softening of the bones — was found by sticking children on the roof of a building. Can you sit there and take that in for a moment? An illness that was making the limbs of children turn into mush was cured by the sun.

You may wonder what this has to do with you, but bones should be your pride and joy. Not to mention the fact that recent studies show an alarming rate of newborns and mothers are becoming more and more deficient. Are past problems coming back to bite us in our vitamin-deficient rears?

Beyond just bones, being too low in vitamin D can lead to a decrease in thyroid function. Although not directly involved in synthesis or secretion, a deficiency can produce increases in the levels of parathyroid hormone.

On the wellbeing side, an increased occurrence of depression and a decrease in mental focus have been found time and time again. There are also links that have shown women who supplement with vitamin D may lose fat easier than those who don’t.

Currently, the desired levels are 30 to 75 ng/mL-nmol/L, and anything less is seen as deficient, though higher doesn’t necessary mean you’re at a toxic level. The concern is for consistent levels above the 200 range.

The bottom-out number should really be 30; however, we’re seeing study after study show that levels are constantly hitting below this all around the world, and the aftereffect is becoming an epidemic.

ng/mL	nmol/L	Status
<>	<>	These levels suggest severe illness, usually seen in rickets or sick infants.
<>	<>	While not directly or instantly crippling, these levels overtime may contribute to illness both acute and chronic.
≥ 30	≥ 75	Seen by some to be the desired range and achieving of optimal health.
Consistently > 200	Consistently > 500	Could be toxic and lead to hypercalcemia and hyperphosphatemia.

Serum 25-hydroxyvitamin D [25(OH)D] concentrations and health

How Do You Get It?

Vitamin D is the “sun vitamin,” meaning that you should receive 80 to 100% of your intake from the sun. When ultraviolet (UV) rays hit the skin, they’re absorbed and converted, setting into motion your body’s process of creating vitamin D. In truth, this should be the end all for receiving your daily intake.

However, things just aren’t that simple.

What About Food Intake?

Vitamin D can be found in small amounts in certain fishes, fortified milks, and egg yolks.

The problem is that the intake would have to consist of very high levels and multiple times daily to give you the effects you need. It also would depend on the quality of your food. With fish, for instance, it’s been shown that farmed salmon (fish raised in tiny boxes eating crappy fish food) held at least 25% less vitamin D than wild-caught salmon.(1)

Take-home point being, if you think that the Wal-Mart fish nutrients are doing something for you, think again. What they eat is what you eat. As well, the fortified milk and cereal claims of vitamin D can be off by as much as 80% of what the label says.

Here’s a chart that gives you a general rundown of food sources for vitamin D:

Food	IU per serving	Percent DV
Cod liver oil, 1 tablespoon	1,360	340
Salmon, cooked, 3.5 ounces	360	90
Mackerel, cooked, 3.5 ounces	345	90
Tuna fish, canned in oil, 3 ounces	200	50
Sardines, canned in oil, drained, 1.75 ounces	250	70
Milk, nonfat, reduced fat, and whole, vitamin D-fortified, 1 cup	98	25
Margarine, fortified, 1 tablespoon	60	15
Ready-to-eat cereal, fortified with 10% of the DV for vitamin D, 0.75-1 cup (more heavily fortified cereals might provide more of the DV)	40	10
Egg, 1 whole (vitamin D is found in yolk)	20	6
Liver, beef, cooked, 3.5 ounces	15	4
Cheese, Swiss, 1 ounce	12	4

Selected food sources of vitamin D (2,3)

Differences in Vitamin D

Vitamin D comes in two main forms: vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). There’s a D1, D3, and D5, but in short, their importance and our control of them isn’t the main topic here.

Vitamin D2 is made by the UV irradiation of ergosterol in yeast, and vitamin D3 is made by the irradiation of 7-dehydrocholesterol from lanolin and the chemical conversion of cholesterol.

It’s suggested that D3 is far superior to D2 at raising levels in the body and holding them higher for extended periods of time.(4,5) Because of this, if you’re going the supplement route for your intake of vitamin D, D3 is the winner of the group.

The overall goal of vitamin D is to raise serum levels in the body and do so as best as possible. To date, both D2 and D3 supplements at prescription-grade levels have shown to do this. D2, however, has been shown to be toxic at higher levels. (It should be noted that you can’t achieve toxic levels of D in the body with just the sun.)

How Long is Too Long in the Sun?

This is the tricky part and most often misunderstood. Obviously, there’s plenty of data to back up that being in the sun too long without protection can lead to skin cancers. The flipside is that being in the sun too little might lead to cancer as well.

You may think that applying some sunscreen will get you the best of both worlds, but sadly sunscreen has been shown to block upwards to 95% of vitamin D uptake from the sun.(6)

What are you to do?

A good solution is to spend fifteen minutes in the sun and then apply your sunscreen. It’s suggested that fifteen minutes a day can be enough. However, for a lot, that isn’t the case. And unless you’re living below 42 degrees North latitude (a line approximately between the northern border of California and Boston), in the wintertime you aren’t going to get it at all.(7)

Studies also show that if you’re African America or Hispanic then you need near double what Caucasians need.(8,9)

The Do’s and Don’ts of Vitamin D

If you find yourself stuck inside, above the magic line, or of darker skin, then you might need to look at better options of getting vitamin D.

1. Don’t be obese: Obesity blocks vitamin D intake by as much as 55%.

2. Don’t be scared of the sun: We’re a culture of extremes and look at where it’s got us. You need some sun, so don’t be afraid of it. Just call it quits before you burn like a lobster.

3. Do eat cod liver oil: Cod liver oil in supplement form is a really simple and easy way to get in lots of D3 during those months when you may not be able to.

4. Don’t be scared of the tanning bed: If you’ve ever known a friend with an iguana or turtle, then you know that in order to survive they need those ultraviolet exposures. Well, so do you!

Exposure to tanning beds resulted in a 100% increase in blood concentrations of vitamin D.(10) The problem is, just as with the sun, people take things too far. It’s a great way to get what you need in the winter months, but the same “don’t overdo it” rules apply.

5. Do get tested: In general, you should be getting a full vitamin and mineral testing every six months. Is it time for a checkup?

6. Do hit the numbers: While 400 IU is the recommend dosage, there’s nothing wrong with getting 1,000 IU, especially from D3, and namely during the “off season.”

7. Do take this seriously: I’m not usually one for dramatics, but there are so many low level health problems that can lead to higher level problems, and issues from a vitamin D deficiency can be really simple to solve.

Take it seriously; get in your sun, get in your oils, and take advantage of the problems you can fix every chance you get.

—

References

1. An evaluation of the vitamin D3 content in fish: Is the vitamin D content adequate to satisfy the dietary requirement for vitamin D?

2. Nutrition Coordinating Center. Nutrition Data System for Research (NDS-R). Version 4.06/34. Minneapolis: University of Minnesota, 2003.

3. U.S. Department of Agriculture, Agricultural Research Service. USDA Nutrient Database for Standard Reference, Release 16. Nutrient Data Laboratory Home Page, 2003.

4. Houghton LA, Vieth R. The case against ergocalciferol (vitamin D2) as a vitamin supplement. Am J Clin Nutr 2006;84:694-7.

5. Nesby-O’Dell S, Scanlon KS, Cogswell ME, Gillespie C, Hollis BW, Looker AC, et al. Hypovitaminosis D prevalence and determinants among African-American and white women of reproductive age: third National Health and Nutrition Examination Survey, 1988-1994. Am J Clin Nutr 2002;76:187-92.

6. http://www.ajcn.org/cgi/reprint/80/6/1678S.pdf

7. Cranney C, Horsely T, O’Donnell S, Weiler H, Ooi D, Atkinson S, et al. Effectiveness and safety of vitamin D. Evidence Report/Technology Assessment No. 158 prepared by the University of Ottawa Evidence-based Practice Center under Contract No. 290-02.0021. AHRQ Publication No. 07-E013. Rockville, MD: Agency for Healthcare Research and Quality, 2007.

8. Nesby-O’Dell S, Scanlon KS, Cogswell ME, Gillespie C, Hollis BW, Looker AC, et al. Hypovitaminosis D prevalence and determinants among African-American and white women of reproductive age: third National Health and Nutrition Examination Survey, 1988-1994. Am J Clin Nutr 2002;76:187-92.

9. Yetley EA. Assessing vitamin D status of the U.S. population. Am J Clin Nutr. In press.

10. Holick, M. F. (2004). Vitamin D: importance in the prevention of cancers, type 1 diabetes, heart disease, and osteoporosis. American Journal of Clinical Nutrition, 79, 362-371.

Source: http://avidityfitness.net/2008/10/13/vitamin-d-the-real-factstruths-and-sources-of-the-sun-vitamin/

Top 10 Ways to Stay Energized

Even if you're a hyper-organized, task-oriented worker with an expansive mind and endless ambition, you won't get a lot done if your mind and body are demanding you curl up and doze off. Luckily, you can overcome a late night of net surfing, a rough morning, or just the post-lunch stupor without becoming an over-wired mess. We've put together 10 of the best ways to jumpstart your brain and get back into a productive groove, and all of them are tricks you can put to work this Monday. Photo by neps.

10. Make your own energy products.

If you're going to resort to a brick of grains and protein to give you short-term "power" or "energy," you may as well have it be cheap—and tastier than those foil-wrapped roofing tiles. Same goes for re-hydrating drinks, which can be easily mixed at home. Foodie extraordinaire Alton Brown has recipes for three different home-baked bars, as does About.com's Sports Medicine section. Of course, there's always the free stuff flowing from the tap for true replenishment.

9. Listen to brain-stretching music.

Among other tips offered up by software programmer Brad Isaac for beating "brain drain," the exhaustion that comes from sustained concentration, is working a little Mozart or Bach into your playlist. There's no overly hook-y melody to pull your mind away, and the harmony of so many instruments together relaxes your mind. Strings and brass not your thing? Try the non-intrusive, up-tempo ambient of Groove Salad.

8. Deal with job burnout.

Even if you're generally happy with your job, the people you work with, and the work you're doing, small annoyances and responsibilities can build up over time, until a dark, angry cloud hangs over you seven and a half hours per day. Seriously—feeling overwhelmed by your tasks was the second most frequent response in our poll on energy zappers. The Simple Dollar blog recommends scheduling an immediate vacation to take care of piling-up home stuff and set your mind free. Web Worker Daily suggests finding a new project. However you handle burnout, keeping an even head about your job gives you a lot more energy to spend on stuff that's a lot more fun.

7. Schedule around your energy peaks.

Writer and speaker Michelle Dunn describes herself as "very organized," but there are times of the day she just can't be productive. So when she's about to hit a lull—like right after lunch—she schedules errands and tackles non-thinking tasks, and otherwise schedules around her energy. Of course, not everybody can just run off to Target whenever they're feeling blah, so 43 Folders honcho Merlin Mann explains subtle ways to work inside your schedule.

6. Get outside—even if it's cloudy.

Even if you live in one of those areas with perma-gray skies for two-thirds of the year, getting outside every day can give you a vitamin D boost and the resulting mood and energy improvements. The National Institutes of Health recommends getting 10 to 15 minutes of sun each day, and a layer of sunscreen if you're getting more. Even better, you get away from the screens, voicemails, and low-level humming of the office.

5. Crank out some morning exercises.

You know those mornings where you have to get right up and do something with a deadline? The groans about coffee and sleep fall away, and you usually get it done. Give yourself a now-now-now pushup cycle right after your breakfast, and you might just shake off your sluggish self-doubt and get moving. If you're looking to get more out of your morning time, personal trainer Dan Boyle offers a two and a half minute core routine that'll definitely leave you aware that you're awake. Photo by whyld.

4. Eat the right nutrition mix.

Sugar and bread give you a quick jolt of energy, but ultimately result in an insulin-powered crash later in the day. Too much meat doesn't give you enough of the quick-firing stuff. Balancing out your lunch, instead of just eating leftover pasta, can have a big impact on your day, according to the Harvard School of Public Health Nutrition Source. As Lifehacker guest editor (and current io9 editor) Annalee Newitz puts it:

Remember, carbs come in fruits and veggies as well as grains. And you can get protein from meat, dairy, fish, eggs and beans (like soy or pinto). The perfect lunch might be veggies with fish (mmm, nicoise salad, anyone?), and the best snack an apple with a little cheese.

It's also not a bad idea to keep the heavy meals for morning to ensure better sleeping patterns.

3. Put your senses to work.

If you're stuck at work after a rough night, chances are you'll be staring at a hypnotizing screen or look-alike paperwork and finding it hard to stay awake. WikiHow suggests a multi-sensory assault on your tired self. Try scenting yourself awake with some essential oils of (or just strong scent of) peppermint or rosemary, or target the alertness-sparking stress points like your earlobes and the skin between your thumb and forefinger. Keep yourself a little chilly, and try to move around a bit—it's your best shot at not having the boss notice you haven't said a word since 9AM. Photo by cote.

2. Switch from venti to smaller caffeine doses.

Slamming half a carafe of coffee to get alert and productive is kind of like pounding a six-pack to get social and funny—you're going to miss your mark, in often painful ways. Research suggests that small, frequent doses of caffeine—like tea breaks, caffeinated mints, and even chocolate—do a better job of keeping your brain from feeling fatigued than jitter-inducing java. Of course, if you've got the willpower and patience, you could also just drink half-cups of coffee more frequently. Photo by ToOb.

1. Master the power nap.

Taking a nap isn't calling it quits on getting energized—it's just running a quick defrag on your neural drive and rebooting. We've covered the ins and outs of napping pretty thoroughly here, but if you need a quick take-away, try the Boston Globe's comprehensive cheat sheet. If shut-eye alone can't bring you back, try a coffee-charged caffeine nap.

Source: LifeHacker