Vitamin D3: Powerful natural high blood pressure remedy and vital nutrient

Vitamin D3 is fat-soluble vitamin which is actually a hormone. Our body can synthesize it, when the skin is exposed to sunlight. All other vitamins A, B, C, E and K as well as minerals, we can get from food.

Although some foods contain vitamin D, the amount is very small, when compared to daily requirements. Many people these days can trace some of their problems, health wise, to vitamin D deficiency.

Deficiency can be caused by adverse weather conditions, lifestyle choices or skin type. Some people live in a area with too few sunny days, while others just don't get out that much.

On the other hand, people with darker skin synthesize less vitamin D3, due to higher melanin levels. The darker your skin, the more melanin it has.


Foods sources are:

  • Fatty fish
  • Milk
  • Egg yolks
  • Beef liver
  • Cod liver oil
  • Mushrooms
  • Cheese
  • Only cod liver oil with 1,360 IU per serving (1 tablespoon) and fatty fish ranging from 250-560 IU per serving (50-100 grams or around 3 ounces) are meaningful food sources. All other foods contain less then 100 IU, per serving.


    Sunlight is the best natural source of this precious nutrient. Short 15-20 minute exposure of your arms, legs, face and neck may provide anywhere from 2000 up to 10 000 IU, depending on a person.

    People with lighter skin can produce significant amounts of vitamin D in very short period of time. It is stored, by the body for further use.

    Scientist speculate that daily requirement ranges from 400 IU up to 1000 IU per day. High vitamin D levels are one of the reasons why so many teenagers expirience growth spurt summer.

    Stored levels of vitamin D are depleted during winter which is one of the reasons why so many people get sick. This also makes winter the best time to take vitamin D supplements.

    I have tried taking 400 IU which didn't make no difference. However, when I tried taking 5000 IU per day, I started noticing some great effects, healthwise.


    Besides regular exercise, healthy diet and weight loss, vitamin D3 is one of the best natural remedies for lowering high blood pressure. It is also much safer than ACE inhibitors.

    It affects renin-angiotensin-aldosterone system, by slowing down the formation of renin. Renin breaks down angiotensinogen, into angiotensinogen I which is  converted into angiotensin II, by ACE enzyme.

    Angiotensin II causes vasoconstriction and stimulates the release of aldosterone. Aldosterone is a hormone produced by the adrenal glands which causes sodium retention.

    Both, angiotensin II and aldosterone are responsible for raising blood pressure, one by vasoconstriction and other by sodium retention. 

    While ACE inhibitors blocks ACE enzyme, vitamin D3 slows down the formation of renin which reduces formation of angiotensin II and aldosterone thereby lowering high blood pressure.

    Also, sodium retention leads to loss of potassium. Potassium helps lower blood pressure. So, it is a triple threat.

    On the other hand, high levels of vitamin D in the blood can lead to atrial fibrillation which causes fast heart beat and arrhythmia.


    Vitamin D can prevent several forms of cancer and improve the function of immune system. It seems to affect dendritic cells, macrophages and especially T cells. If there is not enough vitamin D in the blood, reaction of T-cells won't be complete and T-cells won't do their job.

    This precious nutrient also has anti estrogen properties which help may prevent breast, uterine and prostate cancer, while improving testosterone levels.


    Although I haven't ordered it for this issue, I noticed improvement, regarding my lower back pain. Cartilage in the middle and especially my lower back was very thin. After I started taking vitamin D3, the space between the disks got thicker.

    This was the sign that cartilage is regenerating. I could finally feel the space between the vertebrae, while standing up straight and not like before, when it was almost bone on bone which caused back pain.

    Vitamin D may also be helpful for strengthening the bones, tendons and ligaments, while reducing the risk of arthritis and osteoporosis, later in life.


    Vitamin D has active role in regulating pancreatic beta cells thereby preventing autoimmune destruction of these insulin-producing cells. It may also increase insulin sensitivity and help reduce high blood sugar levels.

    Since diabetes has big impact on the cardiovascular system, lowering high blood sugar levels will also reduce the risk of heart disease.


    Although I bought vitamin D3 to boost immune system function, I  noticed that my mood and brain function both improved. This ain't anything new since there is proven connection between sunny days and better mood. Increased production of vitamin D has to have some part in all of this.

    That being said, winter is a time of year when depression and anxiety are at its highest. Adequate levels of sunshine vitamin can also reduce the risk of neurodegenerative diseases, dementia as well as multiple sclerosis.

    Some people even use it to improve their memory and cognitive function.


    If you overdose on vitamin D3, you can experience the side effects such as nausea, vomiting, frequent urination, headache, weakness, arrhythmia, atherosclerosis, high blood levels of calcium, overactive parathyroid gland, kidney stones as well as kidney or liver failure.

    Vitamin D toxicity is very rare since it can be caused only by taking too much supplements. The body regulates how much vitamin D is produced from sun exposure, while most foods don't contain significant amounts of this powerful nutrient.

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