How to Heal Your Mind, Body & Soul at the Speed of Light (Sunlight, That Is…)

Isa Herrera Vitamin D Leading Information

What if I told you that you could beat your winter blues, feel on top of your game and all you have to do is take a vitamin? You might be thinking this is too good to be true, but read on…

For the last couple of months, I’ve been feeling shitty and out of sorts. Getting out of bed at 6 am was becoming more difficult and on most days, I felt like I was on an emotional roller coaster. I was a wreck and a ball of knot’s and nerves. I could feel myself getting anxious and I had this constant feeling of being overwhelmed. This feeling was not proportional to what was happening in my life. So it didn’t make sense to me.

Being the hypochondriac that I am, I thought I was dying from some deadly illness. So I went to my natural doctor and said what the hell is going on with me. I’m losing my mind and I can’t remember things and I can’t concentrate on my work. My doctor ran a battery of blood tests and here’s what we found. I had a severe Vitamin D deficiency that was creating havoc in my life, emotions and on my immune system. A deficiency in Vitamin D is serious business and everyone should check themselves. So I decided to go deep into all things Vitamin D for my tribe and this blog is worth the read 🙂

Vitamin D Can Regulate Our Genes

75-90% of all Americans are suffering from Vitamin D deficiency. That’s almost the whole country! Vitamin D is not like other vitamin, it has a very unique influence on our genes. Vitamin D has an epigenetic influence on the body, regulating up to 2,000 human genes or roughly 10 % of our genetic code. So if you want to control your gene expression take your Vitamin D and keep it at optimal levels.

A Reason To Lose Body Fat

Vitamin D is a fat-soluble vitamin stored in the liver and fatty tissues. Because Vitamin D stores itself in fatty tissues, a person with a high body fat percentage has less available Vitamin D to use. So to have better Vitamin D levels pay attention to your body fat composition and keep your body fat at an ideal level for your age and height.

Let The Sun In

Unlike other vitamins, our bodies can make Vitamin D on its own rather than relying on food source. Of course, the best source of Vitamin D is via safe sun exposure of your skin. If you live in tropics where the sun shines all the time chances are you have optimal levels of Vitamin D.

But what can northerners do? How can we get this vitamin when 4 to 6 months out of the year we cannot baste ourselves in safe sun exposure? The answer is you must supplement during the winter months. Most doctors agree that Vitamin D supplementation during the winter months is necessary for most Americans.

Vitamin D is the new panacea and regarded as the silver bullet to a healthier and younger you. But what type of Vitamin D and how much Vitamin D? Read more and you will find your answers.

Sunlight Is The Best Source of Vitamin D

You know that great feeling that you get when you are in the sun or laying on the beach. There’s a reason for that euphoria and its called Vitamin D. When it comes to producing vitamin D skin tone matters. If you are fair to medium skin tone most experts recommend getting about 10-15 minutes of direct sunlight without sunscreen. If you have dark skin you will need even more time in the sun up to 30-40 minutes. I cannot remember the last time I was in the sun for that long. So I got into trouble with my vitamin D levels.

Why Is Vitamin D So Good For Us

Vitamin D helps to rejuvenate aging eyes, helps prevent type two diabetes and reduces the risk of Alzheimer’s disease. For women, Vitamin D helps reduce the risk for a caesarian birth, enhances vulvar/vaginal health and improves fertility.

Vitamin D also protects against cancer, helps fight heart disease, and boosts our immune system. Vitamin D also helps with memory, concentration and hormonal regulation. You can see how very important this vitamin is.

Test Your Vitamin D Levels Before You Supplement

Before supplementing with Vitamin D it’s important to measure your Vitamin D levels. The only way to measure this is to measure your blood serum Vitamin D levels. It is also important to check your Vitamin D levels from time to time to make sure you’re maintaining the optimal therapeutic level year-round. Have your doctor perform the test as it usually and see if it’s covered by your medical insurance. 


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Don’t Be Fooled — Order the Correct Blood Test

There are two vitamin D tests — 1,25(OH)D and 25(OH)D. The correct test is 25(OH)D, also called 25-hydroxyvitamin D. This is the better marker of overall D status and is most strongly associated with overall health. It is important to note that you do don’t want to have an average level Vitamin D. You want to have Optimal Levels.

How to Interpret Your Own Vitamin D Blood Results. To get accurate information about your Vitamin D Levels get the 5-hydroxoyvitamin D test done, sometimes also called the 25(OH) D test.

What Your Vitamin D Levels (25 Hydroxy D) Are Telling You

< 50 ng/ML

50-70 ng/ML

Treat Cancer and Heart Disease
70 – 100 ng/ML


Ok, So How Much Vitamin D Should I Supplement With?

The recommended guidelines for Vitamin D have been a topic of debate for many years. Many holistic practitioners believe that the recommended American dosages for Vitamin D are way too low and recommendations should be increased.

The European Food Safety Authority has raised the recommended daily allowance for Vitamin D supplementations to levels far higher than the American guidelines. The European recommendations are listed below as well as the American recommendations so you can see the difference. For my personal health, I follow the European guidelines. You should check with your caregiver to see what works for you and of course test your blood for Vitamin D levels and supplement until you hit an optimal level.

Vitamin D Supplementation-European Guidelines

Adults 18 years or older = 4,000 IU/day
Children 11-17 years of age = 4,000 IU/day
Children 1-10 years of age = 2,000 IU/day
Infants less than 1year of age = 1,000 IU/day

Vitamin D Supplementation-American Guidelines

1 – 3 years: 600 IU
4 – 8 years: 600 IU
9 – 70 years: 600 IU

Adults over 70 years: 800 IU

Pregnancy and breastfeeding: 600 IU

What Kind of Vitamin D?

There are two types of supplemental vitamin D. Vitamin D2 and vitamin D3. The body prefers vitamin D3 because it is more absorbable and beneficial. A food-based vitamin D supplementation is ideal. Also, make sure your Vitamin D is organic and choose a reputable company. Pay attention to the food source that your vitamin D is coming from. It all matters when it comes to choosing a good vitamin D so consult an expert or your doctor.

So the next time you think you are suffering from the winter blues or feel out of sorts look no further than your Vitamin D levels for your answers. This vitamin is the solution for a good life.


Vitamin D Supplementation for Prevention of Mortality in Adult, The Cochrane Database Of Systematic Reviews, July 6, 201:(7); CD007470, G. Bjelakov

Endocrinol Metab Clin North Am. 2010 Jun;39(2):419-46, table of contents. doi: 10.1016/j.ecl.2010.02.013. Vitamin D and diabetes.Takiishi T1, Gysemans C, Bouillon R, Mathieu C.

J Clin Endocrinol Metab. 2010 Feb;95(2):471-8. doi: 10.1210/jc.2009-1773. Update in vitamin D. Adams JS1, Hewison M.

Vitamin D levels and deficiency with different occupations: a systematic review. Daniel Sowah,#1 Xiangning Fan,#1 Liz Dennett,2 Reidar Hagtvedt,3 and Sebastian Straube

Pharmacotherapy. 2012 Apr;32(4):354-82. doi: 10.1002/phar.1037. Vitamin D supplementation: what’s known, what to do, and what’s needed. Haines ST1, Park SK.

Am J Geriatr Psychiatry. 2006 Dec;14(12):1032-40. Vitamin D deficiency is associated with low mood and worse cognitive performance in older adults. Wilkins CH1, Sheline YI, Roe CM, Birge SJ, Morris JC.

Br J Psychiatry. 2013 Feb;202:100-7. doi: 10.1192/bjp.bp.111.106666. Vitamin D deficiency and depression in adults: systematic review and meta-analysis. Anglin RE1, Samaan Z, Walter SD, McDonald SD.

Am J Clin Nutr. 2008 Apr;87(4):1080S-6S. Vitamin D deficiency: a worldwide problem with health consequences. Holick MF1, Chen TC.

About the Author


Isa Herrera, MSPT, CSCS is a New York City-based holistic women’s pelvic floor specialist, author of 5 books on pelvic health, including the 2017 international best seller Female Pelvic Alchemy and the ground-breaking self-help book, Ending Female Pain, A Woman's Manual. She has dedicated her career to advancing awareness of pelvic floor conditions so that more people can find relief from this silent epidemic that affects over 30 million people in the US alone. Ms. Herrera holds a BA in Psychology and Biology from Fordham University and also a Masters in Physical Therapy from Hunter College. Click here for a complete bio.