All Posts tagged supplements

Why is Vitamin D so Important?

Vitamin D.  

Technically, it’s not really a vitamin.  It’s in a class by itself.  The active metabolic product of Vit D is 1,25 dihydroxy vitamin D, Vit Da secosteroid hormone.  Every cell in the body has a receptor for it and it affects over 1000 genes.

Vitamin D deficiency is a big problem.  It’s found in all ages and is especially prevalent in African Americans.  36-57% of Americans are Vitamin D deficient [1]

Vitamin D is critical for good health and protection from disease.  Healthy serum levels are in the 30-105 ng/ml range.  It’s a myth that you can get adequate amounts with 15 minutes in the sun every day.  You cannot.

Here’s why Vitamin D is so important.  It reduces your risk of:

  1. Cardiovascular disease and heart attack[2]
  2. Cancer, including colon, breast, ovarian and renal [3][4][5][6][7]
  3. Falls in women (neuromuscular control)
  4. All fractures[8]
  5. Multiple sclerosis[9]
  6. Non-Hodgkin’s lymphoma[10]
  7. Type 1 diabetes
  8. Contraction of influenza[11][12]
  9. Alzheimer’s disease, dementia[13]

How to supplement with Vitamin D:

First, choose a pharmaceutical grade brand such as Metagenics or Xymogen.  Note that each 100 IU of Vit D3 intake increases serum 1,25(OH)D by 1 ng/ml[1] over the course of several months.

d3 5000

I take 5000IU of D3 daily for maintenance of healthy serum levels.

Go to Metagenics Store to find medAge-approved Vitamin D supplements.

Contact us at medAge for more information on Vitamin D and other nutritional supplements and healthy lifestyle coaching.   828-684-1212

To Your Optimal Health!  Dr. Laura

[1] Barger-Lux et al. Osteoporosis Intl 1998;8: 222-30
[1] Holick, MF. High prevalence of Vit D in adequacy and implications for health. Mayo Clinic Proc. 2006;81(3):353-373
[2] Giovannucci E al. 25-hydroxyvitamin D and risk of myocardial infarction in men: a prospective atudy. Arch Intern Med. 2008 Jun 9;168(11):1174-80
[3] Lappe JM, et al. Am J Clin Nutr. 2007;85:1586-91.
[4] Garland CF et al. Breast cancer risk according to serum 25-hydrooxyvitamin D: Meta-analysis of dose-response. Amer Assoc for Cancer Res Ann Meeting. 2008.
[5] Gorham ED, et al. Am J Prev Med. 2007;55:234-9.
[6] Tworoger SS, et al. Cancer Epidemiol Biomarkers Prev. 2007;16:783-8
[7] Mohr SB, et al. Int J Cancer. 2006;119:2705-9.
[8] Bischoff-Ferrari HA, et al. JAMA.2005;293:2257-64
[9] Munger KL, et al. JAMA. 2006;296:2832-8.
[10] Purdue MP, et al. Cancer causes control. 2007;18:989-99.
[11] Cannell JJ,  et al. On the epidemiology of influenza. Virol J. 2008 Feb 25;5:29.
[12] Grant WB, et al. Ther role of Vit D3 in preventing infections. Age Ageing. 2008 Jan;37(1):121-2
[13] Buell, J et al. 25 hydroxyvitamin D, dementia and cerebrovascular pathology. Neurology 2010;74:18-26

The most important skin care products–it may surprise you!

In my line of work it’s no surprise that I am asked this question nearly every day, “What products should I use to take care of my skin?”

I’m a doctor, so I look at it scientifically, and guess what?  The answer is, “A good moisturizer and sun protection.”

Here’s why, then I’ll tell you which products I prefer.  As demonstrated by many studies in the medical literature, through a series of complex molecular processes the skin has remarkable ability to repair itself–even without the help of chemical peels, laser treatments or cosmeceuticals.  But, in order to do so, it must remain hydrated.  

The top layer of skin, called the stratum corneum, functions to limit the loss of water (moisture) from the skin and the invasion of exogenous materials, such as chemicals and bacteria.  Stratum corneum cells originate in the deep layers of the epidermis and migrate toward the surface, shedding in 4-6 weeks.  There is continual production and replacement of these cells.

Daily damage from cleansers, low humidity, wind and UV light break down the barrier of the stratum corneum and over time leads to lowering of the water content in the skin.  If fact, dry skin is not simply skin that lacks water, but is dysfunctional on a cellular level.  A certain about of moisture is necessary for the proper function of enzymes that naturally break the bonds between skin cells, allowing normal shedding of cells one at a time.  Dry skin sheds in clumps of cells appearing as rough skin which looks dull because light is scattered by the uneven surface.  It looks pale because the pink glow from the microcirculation is obscured.  It may show visible scaling and is susceptible to irritation and cracking.   You must restore and maintain the integrity of the stratum corneum to prevent water loss.

An effective moisturizer is the answer.  It contains a good humectant, such as glycerol, to hold water in and lipid emollients that seal in moisture and prevent washout of the humectant when the skin is next in contact with water. 


1.  use and non-soap cleanser which won’t strip the natural fats from the surface of your skin

2.  protect from UV damage with a physical sun screen (zinc and titanium) and sun protective clothing

3.  and use a good moisturizer!

My top daytime moisturizer choices:

1.  $ Aveeno Ultra-Calming Daily Moisture SPF 15

2.  $ Cetaphil Daily Facial Moisturizer SPF 15

3.  $ Purpose Dual Treatment Moisture Lotion SPF 15

4.  $$ SkinCeuticals Daily Sun Defense SPF 20

5.  $$$ Nia24 Sun Damage Prevention 100% Mineral Sunscreen

My top evening moisturizer choices:

1.  $ Aveeno Ultra-Calming Moisturizing Cream

2.  $$ Burt’s Bees Evening Primrose Overnight Cream

3.  $$ Elizabeth Arden Good Night’s Sleep Restoring Cream

4.  $$ La Roche-Posay Toleriane Soothing Protective Facial Cream

5.  $$$ Bobbi Brown Intensive Skin Supplement

And remember, good skin starts with optimal health.  Eat well-no processed foods and eliminate simple carbs.  Consume lots of fresh vegetables and a moderate amount of healthy proteins and fats.  Balance your hormones by having them measured and if needed, replaced properly with bio-identical hormones.  Exercise wisely and manage your stress.

Be Well!  Dr. Laura