Vitamin D is a hormone-like vitamin that, according to many nutritional experts and researchers, is the most important single vitamin you can optimize in your body. It has a wide range of strengthening and protective functions in the body. Vitamin D is especially important during the winter months. Here we offer the best and purest vitamin D supplements, and hope that you will find one that suits you! Common questions about vitamin D Do I need vitamin D? In our country, we get vitamin D from the sun only in summer if we spend enough time in the sun without sunscreen. Therefore, it may be important to take a supplement during certain parts of the year. Vitamin D is essential for healthy bones and teeth, muscle growth, a healthy heart, brain functions, healthy skin, and for a healthy immune system. Did you know that vitamin D also affects our mood? Deficiency of vitamin D can cause fatigue, low mood, aches, pain, problems with the immune system and the skin. Don't I get enough vitamin D from the sun? If you spend time in direct sunlight without sunscreen, are light to medium in skin tone, you can generate enough in 10-15 minutes daily. But in our country, this is difficult year-round. So during the darker months, a dietary supplement may be needed. Here you can read more about vitamin D. Should I take a dietary supplement with vitamin D? Taking a vitamin D supplement can be a good idea for many, especially during autumn and winter or for those who cannot spend time outdoors, have covered body or live in places where there is not much sunlight. Vitamin D comes in two forms; D2 and D3. Vitamin D3 is preferred because it is used more efficiently in the body and is the form that comes from the most natural source; the sun. Vitamin D3 is extracted either from sheep's wool or from a vegetable lichen. The latter suits everyone who wants a plant-based alternative. We offer D3 vitamin in the form of cholecalciferol with or without K2 vitamin. Should I take vitamin D with vitamin K2 or without? Vitamin K2 and D3 work well together for a stronger skeleton. An important role they have is to get calcium absorbed from the diet into the skeleton. Vitamin K2 is important for directing calcium to the skeleton, excess calcium is deposited as plaque buildup in the arteries. K2 balances calcium levels in the blood. Therefore, it may be advantageous to take a dietary supplement with both D3 & K2, but it is equally fine to take a multivitamin-mineral as a base regardless of what other supplements you take. Can I overdose on vitamin D? "Vitamin D toxicity" is rare, it can occur when someone takes huge mega doses such as more than 10,000 IU of vitamin D per day for several months. Remember to always follow the specified dosage. You can also test your vitamin D levels at the health center or privately.