Archive for the ‘Vitamin D’ Category

Determining the correct 25-hydroxy Vitamin D level is still a work in progress.  In the 8 years I have been attending meetings, we have made considerable progress.  NOF 2007 was the first time any society proposed an intake above 400 IU daily and a 25-hydroxy Vit D level of more than 20 ng/ml.

At the 2015 U. Wisconsin “Bare Bones Symposium” the latest recommendations were discussed.  I have summarized them here.

Take Vitamin D3.  D3 is Cholecalciferol (what we make in sunshine).  Vitamin D2 is Ergocalciferol (what plants make and use).  D3 works much better in people than D2 becuse it is the right stuff.   It lasts 5 times longer and the assay is more accurate.

Test for 25-hydroxy Vitamin D level and aim for between 40 and 80 ng/ml.  At 40 ng/ml over 98% of people can absorb and utilize Calcium fully.  You want to have some margin of safety since lab test results vary by at least 20%.  If you are seriously deficient, we give 50,000 IU of D3 every M, W, F based on your level and size, to correct the level quickly.

If you do not want to test your level, and you are the “average person” of 154# or 70 kg, you should take 3800 IU daily.  This should achieve the 40 ng/ml level – eventually.  If you are very deficient, this could take a year or more.  If you are larger than the old average, or you have digestive issues, you will need more.

Finally, some cancer researchers believe that 70 ng/ml is better for preventing and treating cancers.  If they are right, you should go for the higher level.  If they are wrong, you have done no harm by going for the higher level.

Take Control of your Bone Health.  Take enough D3.

Jay Ginther, MD

Vitamin D From The Sun

December 21, 2014 @ 3:17 pm
posted by Dr Ginther

Today we are just over 100 days away from the next Natural Vitamin D3 from the sun in Iowa.

Today, Sunday the 21st of December is the Winter Solstace of 2014 in North America.  The sun is the lowest on the horizon.  That means sunlight today has to travel through the greatest amount of earth’s atmosphere to get to us.

Today, the earth’s atmosphere completely protects us from Sunburn and Skin Cancer by blocking the sun’s UV rays.  This is good.

Today, the earth’s atmosphere completely protects us from Vitamin D3 by blocking the sun’s UV rays.  This is not so good.

Our next Natural Vitamin D opportunity will come at mid-day (a little after 1 PM in Waterloo, Iowa) in early April.  Until then you need to get your Vitamin D from foods or supplements.  Vitamin D3 tablets, capsules, gel caps or drops all can work.  So can tablespoons of Cod Liver Oil or several pounds of Mushrooms daily.

Test for your 25-hydroxy Vitamin D level to determine if you are getting enough.  Almost everyone is too low at 20 ng/ml and almost everyone has enough above 40 ng/ml.  I aim for between 40 and 80 for optimal bone health for myself and for my patients.

It is Winter.  Do you know where your Vitamin D is coming from?

Take Control of your health by finding out.

Jay Ginther, MD

Brie for Breakfast

October 24, 2014 @ 7:50 pm
posted by Dr Ginther

Welcome to the European Breakfast Buffet.  Calcium rich foods are featured in cheeses and yogurts.  At least 3 choices of cheeses on a rotation from day to day.  Yogurt comes plain, with dollops of fruit compote, and prepackaged Yoplait and competitors.  Milk is skim, whole, almond, walnut.

Cheeses are featured again at the luncheon buffet.  Capri salad of sliced Mozzarella, tomato, and garnish is a popular alternative to other salads with Feta or Goat Cheese.  Further north Gouda, Emmentaller, Cheddar, Jarlesberg step forward.

After dinner, after dessert, the cheese plate, often with port or a dry red wine, finishes the meal.  Many Europeans consume 1000, 1200 or even 1500 mg calcium daily in foods.  This they have done for centuries.

Smoked Salmon is a constant at breakfast.  The best source of Vitamin D3 other than Cod Liver Oil.  Cod is the dominant fish in the Portuguese diet, along with Sardines, eaten whole, often bones and all, high in Calcium and D3.

Cured meats, sausages, and eggs are good sources of protein at every breakfast buffet.  Hearty whole grain breads are available, but are losing ground to chocolate filled puff pastries.

Traditional diets have persisted because they work.  They fulfill the nutritional needs of the peoples who have eaten them for generations.

Make sure your diet meets your nutritional needs for good bone health.  Calcium, Vitamin D3, Protein, and Vitamins & Minerals.  Take Control Naturally with proper nutrition.

Jay Ginther, MD

Goodbye to “Totally Natural” Vitamin D

September 14, 2014 @ 8:18 pm
posted by Dr Ginther

I was out at high noon (about 1:12 CDT) today, and may have made some Vitamin D in my exposed skin.  We had beautifully clear skies with cool, dry air and lots of sunshine.  I did not use sun-block for the few minutes of skin cancer risk.  Unfortunately, it was also only a few minutes of Vitamin D opportunity. 

Ultraviolet light is attenuated and eventually blocked by the atmosphere.  The lower the sun is on the horizon, the less UV light gets through.  In Waterloo, IA we are entering the 7 months of the year when the sun is too low on the horizon.  We do not get enough UV to produce any Vitamin D.

Less than half of Iowans, who do not take substantial Vitamin D3 supplements, have sufficient Vitamin D levels in September.  By early April, that is less than 15%.