Vitamin D supplements

Vitamin D is known as the sunshine vitamin, but it is not technically a vitamin. In reality, it is considered a pro-hormone, and is synthesized through the skin in a reaction to sun exposure. Once created, the vitamin D acts on a number of cells and tissues throughout the body to stimulate the growth and absorption of nutrients.

Types of Vitamin D
There are two common forms of this vitamin, D-2 and D-3, which are very different both in structure and in function. The vitamin D-2 is synthesized through the irradiation of plants, and has a bioavailability much lower compared to its counterpart. The D-2 is not produced by the human body and has a third of the absorption of the D-3, which makes it much less advantageous for human beings.

The vitamin D-3, on the other hand, is synthesized from the body which if taken exogenously and is highly bioavailable.

What is vitamin D?
Vitamin D is used by the brain, skeletal muscle, colon, bone, heart, adrenal glands, and even from immune cells. It helps regulate the absorption of minerals, mood and insulin sensitivity, among other processes.

It is estimated that almost 50% of the people around the world have a vitamin D deficiency or, at minimum, a lack of vitamin D. Even though many of us have access to the powerful rays of the sun, the vitamin D deficiency is common when the skin is protected from the sun or in those with pigments that are darker than the skin.

What are the dangers of vitamin D deficiency?
Stress fractures: the role of vitamin D in the absorption of calcium and phosphorus makes the deficiency of this nutrient a threat to the integrity of the bone. It could be particularly dangerous for those who are already prone to stress fractures and osteoporosis, such as distance runners, women athletes and the elderly.

Depression: lack of D may also make you feel sluggish, depressed, and perhaps even "SAD". According to the American Academy of Family Physicians, the 10-20% of americans may have a mild depressive disorder called Seasonal Affective Disorder (SAD). [6] This feeling of general fatigue, heaviness and restlessness, accompanied by weight gain, is most commonly diagnosed in the winter months.

It is estimated that 1 person out of 7 suffers from symptoms of depression at some point in their life, both in the SAD and from other causes. Some of these depressive symptoms can be caused by neurotransmitter or hormonal imbalances. The vitamin D creates a favorable environment for the production of hormones of well-being and can help sustain a mood healthy.

Muscle recovery compromise: studies have also touted the effect of vitamin D on skeletal muscle. A study by the University of Liverpool, John Moores, found that six weeks of integration, with 4,000 IU per day of vitamin D improved muscle recovery in the days after a hard workout. If you train hard, especially if you are prone to sprains and injuries, it is worth taking into account the intake of vitamin D additional to maximize recovery and reduce the possibility of injury.

Mens Multi+Test (150 tabs) by GAT Sport | Body Nutrition (EN)
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GAT Sport

Mens Multi+Test (150 tabs)

€36.30 €72.60
Men’s Multi+Test by GAT Sportis a complete vitamin, mineral and energy multivitamin with added men’s virility ingredient Tribulus Terristis.
Plant-Based Vitamin D3 Liquid by Nordic Naturals | Body Nutrition (EN)
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Nordic Naturals

Plant-Based Vitamin D3 Liquid

Size : 30 ml
€23.94 €38.00
Vitamin D3 Vegan Nordic Naturals is a 100% vegan vitamin D3 liquid for bones, mood and immune health, sourced from organic lichens. Developed for strict vegans and vegetarians and is registered by the Vegan Society®.
Vitamin D-3 by NOW Foods | Body Nutrition (EN)
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NOW Foods

Vitamin D-3

Size : 1000 IU - 360 softgels 2000 IU - 120 softgels 5000 IU - 120 chewables 1000 IU - 180 softgels
€7.44 €12.00
Now Foods High Dose Vitamin D3, supports a healthy immune system, healthy bones and teeth, muscle function and nervous system.
Vitamin D-3 & K-2 by NOW Foods | Body Nutrition (EN)
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Size : 120vcaps
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This vitamin D3 K2 preparation from NOW combines these two essential vitamins in what we consider to be an optimal dosage of 25 mcg vitamin D3 and 45mcg vitamin K2 in one capsule.
Vitamin D3 (5000 IU) by Zein Pharma | Body Nutrition (EN)
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Vitamin D3 (5000 IU)

Size : 5000 IU - 90 caps
€15.33 €21.00
With ZeinPharma's Vitamin D3 capsules, you get a high-quality supplement with 1,000 I.U. to 5,000 IU of Vitamin D3. Benefit from vitamin D3 naturally derived from lanolin. It is absolutely pure, free of impurities and suitable for vegetarians.
Vitamin D3 (5000 IU 100 softgels) by Jarrow Formulas | Body Nutrition (EN)
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Vitamin D3 (5000 IU 100 softgels)

Size : 5000 IU 100 softgels
€14.58 €27.00
Vitamin D3 by Jarrow Formulas is a cholecalciferol supplement, which is more biologically active than ergocalciferol (Vitamin D2). It supports the dietary absorption of calcium and phosphorus, stimulates the synthesis of osteocalcin (an important structural protein in bone) and supports a healthy immune response.
Vitamin D3 - 90 tabs by Applied Nutrition | Body Nutrition (EN)
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Applied Nutrition

Vitamin D3 - 90 tabs

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Vitamin D3 by Applied Nutrition is a cholecalciferol supplement, an essential micronutrient that determines the absorption of calcium and also a general reinvigoration. 
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