Normal, Natural And Optimal Vitamin D Level
Normal, Natural And Optimal Vitamin D Levels

The laboratory values ​​of healthy ones are considered normal. But health is a question of definition. If mood disorders and vegetative complaints such as muscle twitching, muscle pain, high need for sleep, headaches and circulatory problems are excluded, many vitamin D deficiency patients are counted as healthy and low average values ​​are declared as normal, although this is incorrect.

Degenerative diseases can also develop unnoticed over the years. During this time, those affected are mistakenly counted among the healthy.

So we must not ask what is normal in a sick population. Instead, we have to exhaust the values ​​that are necessary to maintain health and performance even in old age. Not the average and thus statically normal vitamin D level should be considered as the target value, but the optimal one.

Vitamin D Level

In the USA, an annual average vitamin D level of 16 ng​​/ml is recorded. In winter the average value is around 8 to 12 ng/ml and in summer around 24 ng/ml.

Values ​​below 20 ng/ml are usually accompanied by vegetative complaints such as tiredness, lack of energy, restless sleep, leg pain and muscle twitching.

The vitamin D level is not necessarily optimal in a natural lifestyle. Even if you could use every opportunity to sunbathe at lunchtime, you only reach an adequate vitamin D level of over 40 ng/ml in spring after 15 to 30 days of sunshine.

In the winter months from October to March, vitamin D cannot be formed in many places because the UVB radiation in the atmosphere is filtered out due to the sun’s low position and does not reach the earth’s surface. During this time, the vitamin D level drops by about 20% per month, provided that no vitamin D has previously been successful through artificial UVB radiation or supplementation. The food makes no significant contribution to the supply.

Therefore, the vitamin D level that results from a natural lifestyle depends on the season and the weather.

Even sun lovers do not necessarily achieve optimal vitamin D levels in summer. Sunscreens block UVB radiation and thus prevent vitamin D formation. Many do not sunbathe at noon when the sun is at its highest point and at maximum UVB radiation, but at a different time during which very little vitamin D can be formed.

An ideal supply of vitamin D can only be achieved all year round in the tropics, provided that every sunny day is used at noon for at least a short sunbath for the whole body.

On the other hand, even in northern Italy, it is not possible to form vitamin D for two to three winter months due to the sun’s low position.

Primitive tribes in equatorial countries have vitamin D levels of 50 to 90 ng/ml, which is to be considered natural. But even with excessive sun exposure, there is no need to fear vitamin D levels above 100 ng/ml. Over-supply in a natural way is impossible.

A satisfactory calcium intake can be expected with a vitamin D level above 30 ng/ml, but only with year-round levels above 40 ng/ml will the best results be achieved in preventing osteoporosis in old age. For the best protection against cancer, a vitamin D level above 55 ng/ml should be aimed for.

Vitamin D Level Definitions:

1. The acute vitamin D deficiency syndrome. The term acute (Latin: sharp) refers here to the possibility of rapid improvement. The syndrome includes all complaints and symptoms that disappear within a month after optimal vitamin D levels have been reached.

  1. The chronic vitamin D deficiency. The consequences of a long-term shortage can be irreparable. However, vitamin D treatment can still improve after a year.
Vitamin D1 μg = 40 international units (IU)
Vitamin D levels in the blood1 ng / ml = 1μg / l = 2.5 mmol / l
Conversion factors for the amount and concentration of vitamin D in the blood (25-hydroxy-cholecalciferol, 25-OH-D3).

Toxic Effectover 300 ng / ml
Risk of excessive calcium levelsover 150 ng / ml
Recommended upper limit in blood100 ng / ml
Status with regular sunbathing50 to 90 ng / ml
Optimal (minimal risk of disease)50 to 90 ng / ml
Good (low susceptibility to disease)over 40 ng / ml
Satisfy (good calcium intake)over 30 ng / ml
Deficiency (risk of osteoporosis in old age)below 30 ng / ml
Severe Deficiency (High risk of osteoporosis, Disorder of the autonomic nervous system)below 20 ng / ml
Extreme Deficiency (Osteomalacia, Rickets)below 12 ng / ml

The best possible prevention of degenerative diseases and infectious diseases is assumed to be at a vitamin D level above 40 ng/ml. Lower values lead to a higher susceptibility to illness and poor health.

Anyone who exposes their whole body to the sun in a well-dosed manner every sunny day at noon will achieve values of 50 to 90 ng/ml at the end of summer. An oversupply of vitamin D is not possible when sunbathing, because a reverse reaction sets in when the vitamin D level is high, and more vitamin D is broken down. In this way, nature guarantees a high level of equilibrium.

It becomes critical in many places in winter. Even those who go into autumn with a high vitamin D level have fallen below the limit of 30 ng/ml at the end of winter without intake and UVB radiation. Most are far below.

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