Vitamin D is essential for the body
It supports the
immune system, contributes to the
health of bones and muscles, and may even have a positive effect on your
mood. The body produces vitamin D in response to sunlight, but due to modern lifestyles and seasonal changes, supplementation is often necessary. Some studies suggest that up to 50% of the population may experience symptoms of vitamin D deficiency. Accurate testing is done via
blood tests, and if a deficiency is confirmed, high-dose, periodic vitamin D intake becomes critically important.
Symptoms of vitamin D deficiency can be grouped into 5 categories:
1. General symptoms - Fatigue, low energy
- Insomnia or sleep disturbances
- Depression, anxiety
- Lack of motivation, low mood
2. Musculoskeletal symptoms - Bone pain
- Muscle weakness, muscle pain
- Fatigue during physical exertion
- Frequent muscle cramps
- Reduced muscle strength (especially affects the elderly)
- Osteoporosis (in the long term)
3. Immune system symptoms - More frequent colds and respiratory infections
- Slow wound healing
- Tendency toward inflammatory diseases
4. Dental symptoms - Bleeding gums
- Weakened tooth enamel
- Increased risk of tooth loss (in severe cases)
5. Childhood symptoms - Rickets – bone deformities
- Slow growth, muscle weakness
- Delayed tooth eruption
Did you know that vitamin D exists in two forms?
D2 is plant-based, while D3 comes from animal sources and is absorbed much more efficiently than D2. How can the absorption of D3 be further enhanced? According to studies, vitamin D delivered in the form of an
oral spray can have
much higher absorption than tablets or capsules – especially when oil-based!
That’s why we developed
Vitamin360 D4000 Oral Spray, made with MCT oil for maximum bioavailability. One refreshing minty spray delivers 4000 International Units (IU) of vitamin D3 to your body – far above the general daily recommendation, yet still safe and effective.
Delicious. Easy to use. High potency.
This formula can effectively support the treatment of vitamin D deficiency and help relieve its symptoms. It is especially beneficial during periods when the immune system is under stress (e.g. winter, illness, or other immunocompromised conditions). Due to its high active ingredient content, it is best used as a
short-term course. It is important to know that certain conditions – such as high body fat percentage, liver dysfunction, chronic inflammation, or the use of certain medications like glucocorticoids – may impair vitamin D metabolism. In such cases, higher vitamin D intake may also be justified, under proper medical supervision.
You might wonder why vitamin D is measured in IUs instead of the usual mass units. The biological activity of vitamin D depends not only on its mass but also on the type and absorption of the active ingredient. This is why the International Unit (IU) was introduced – to allow standardized comparison of vitamin D effects from different sources around the world. So, the
IU (International Unit) is a
standardized measurement that reflects the
biological effect of the active ingredient. This calculation method allows different forms and purities of vitamin D to be
compared accurately.
Another relevant question is: how much vitamin D is considered safe? The good news is that
vitamin D is difficult to overdose. Thanks to the body’s ability to release large amounts of vitamin D during sun exposure, it can tolerate higher doses well (of course
within reason).
4000 IU/day is considered safe even for long-term use in healthy adults. Higher doses, however, should be taken
under medical supervision – for example, when treating vitamin D deficiency, doctors may temporarily recommend up to 10,000 IU/day.
Do we still need vitamin D during the summer?
In general,
our bodies produce more vitamin D in summer due to increased sunlight, so our requirement may
decrease. However, this
does not mean that everyone produces enough vitamin D naturally, even in the summer.
Summer vitamin D supplementation may still be necessary in the following cases:
- Spending little time outdoors (e.g. office work, shift work)
- Wearing clothing that covers most of the body (e.g. long sleeves, hats)
- Using sunscreen, which blocks UVB radiation
- Being older, overweight, or having darker skin, all of which can reduce vitamin D synthesis in the skin
- Being ill, recovering from surgery, or bedridden and unable to get sun exposure
During summer, the usual daily dose can be reduced to around
500–1000 IU if the skin receives enough sunlight. However, it’s important to note that with stronger UVB radiation, the harmful effects of sunlight also increase – so always follow safe sun exposure guidelines.
DIRECTION (1 serving = 1 application)
One spray per day directly onto the oral mucosa, preferably after a meal. The product is intended for use as a course, primarily during the winter months or in periods of increased demand (e.g. reduced sunlight, weakened immune system, chronic inflammation). In certain conditions – such as liver disease, obesity, inflammatory processes, or the use of glucocorticoid-containing medications – the body’s vitamin D requirement may increase. In such cases, supplementation is especially recommended, but the exact dosage should be discussed with a healthcare professional.
STORAGE
Store at room temperature, out of direct sunlight, in a sealed container.
