What Does Vitamin D Do?

20 September 2019

In today’s article, we are going to cover an important nutrient called Vitamin D. We will look at subjects like; food sources, Vitamin D supplements, and how it helps the immune system. This will be the start of a regular series of articles about why the right levels of vitamins, minerals and other essential nutrients are one of the keys to a healthy life.

There is no question as to vitamin d’s importantance. But, the controversial arguments are;

  1. What are the right amounts of Vitamin D?
  2. Are the research results about the benefits of Vitamin D real?

The Sunshine Vitamin

Vitamin D is a fat-soluble nutrient. In fact, it is really a group of secosteroids. It is responsible for helping us absorb Calcium and Magnesium. It also plays a role in multiple biological events, like hormones.

Vitamin D3 (cholecalciferol) and D2 (ergocalciferol) are the compounds most important to humans. Known as the ‘sunshine vitamin’ and is naturally produced as your body’s response to sun exposure. We also consume Vitamin D from food and via supplementation.

Recent studies have found that a large percentage of the global population have a Vitamin D deficiency. Long term deficiency will increase the risk factor for major diseases. A test of Vitamin D blood levels is essential and costs about £30. (see link).

Global Vitamin D Deficiency Epidemic

1 billion people suffer from Vitamin D deficiency around the world. Isn’t it strange how this is totally ignored by all health organisations, charities, or governmental bodies? This should be a health emergency. But, why are institutions, charities and governing bodies failing to warn the public.

Insufficient levels of Vitamin D can cause serious health issues.

Sunshine helps our bodies manufacture required amounts of Vitamin D. But, due to fears of developing skin cancer most people avoid the sun like the plague. We are advised to put sunscreen on before we even enter sunlight. This then stops the sun reaching us.

Melanin concentrations slow down the production of Vitamin D as does natural ageing. The use of sunblock, window glass, in homes or cars, clothing, obesity and even dark skin, all effectively block sunlight thus making us susceptible to Vitamin D deficiency.


How much daily Vitamin D?

Vitamin D is key to about 200 hormonal functions. So, being of darker skin myself I definitely feel the benefits of sunshine. But how much Vit D do we really need.

As part of my personal Lyme disease treatment, I just feel better in the sun. I also take 10,000iu (international units) per day in supplement form D3 (cholecalciferol). I also take Vitamin K2 to help the absorption of Calcium and Vitamins.

NHS advice is that an adult should not take more than 100iu.


Symptoms of Vitamin D Deficiency.

  • Low Vitamin D levels are linked to Advanced Cancers. More than 75% of people with advanced cancer have a deficiency of Vitamin D. It also has antitumour properties.
  • Canadian researchers studied over 30,000 people and found a link from deficiency to depression.
  • Scientific research has shown that Vit D deficiency has a role in Asthma.

According to the Vitamin D Council, the following health issues can be helped with Vitamin D:

Acne, Alzheimer’s Disease, Anaphylaxis, Anemia, Autism, COPD, Cognitive Issues, Heart Failure, Heart Disease, Dental Caries, Diabetes (1&2), Eczema, Fibromyalgia, HIV, Hypertension, IBS, Influenza, Leukaemia, Lupus, Melanoma, MS, Osteoporosis, Parkinson’s, Respiratory Infections, Ricketts, Sepsis and Septicaemia, Tuberculosis.

acne filled skin

I can also add in our case Lyme Disease to this list.

Foods that contain Vitamin D

  • Fish or Fatty Fish – Tuna, Mackerel and Salmon, also fish oils
  • Dairy Products – Cheese, Milk and Cream
  • Meat – Beef Liver
  • Eggs
  • Funnily enough, I don’t see Domino’s Pizza or KFC listed

Health Bunker 

The list of health issues caused by Vitamin D deficency, reads like a who’s who of modern health conditions. But Vitamin D will not just work by itself, it isn’t a magic pill. Diet, cutting toxins out and detox are also key components. But the guidelines set out by the medical experts seem to me to be a little out of whack with the evidence. 

In 2010 when I started taking higher amounts of Vitamin D, I read the advice from the NHS. I also read books on the subject. I can’t say I was not concerned about taking more than the NHS advised. 

So I started low and gradually increased my dosage. I take between 5000iu in the summer and 10,000iu per day in winter. I am not advising anyone to take Vitamin D supplements, please do your own research but for the record this is what I do. But, I have not had any adverse reactions from Vitamin D only benefits.

Over the years I have come to realise that the advice handed out from the NHS is not always correct. For instance, some things that bring benefit, are always advised on the low side. But, the amounts of bad things we can take are on the high side. Like sugar. 

Sunscreen is also unhealthy and has toxic ingredients. E.g Oxybenzone, it is one of many ingredients in sun creams that we use. The madness of this chemical is. It is added to apparently stop us getting skin cancer. But it has been shown to cause SKIN CANCER!

Nivea Sun does not contain Oxybenzone. But it does contain Octocrylene. This chemical can cause the same skin mutations. But they are advertising on their bottles that Cancer Research are advising us to use Nivea Sun? I wonder how much Nivea are paying for this?

Does this seem like reasonable behaviour to you? Think about it when you’re rubbing on factor 50.


Eat Well. Be Well.

Dom and Nic
Health Bunker
It’s Your Life. Own it!

*Disclaimer – Please note, we are not Doctors or trained medical professionals. We are not giving medical advice. Check with your Doctor or health practitioner before trying anything.



Vitamin D Council
Medical New today
Vitamin D Test
Natural News
Psychology Today
Mayo Clinic

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