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Cholecalciferol 1000 IU is a softgel from Life Extension for those who supplement their daily diet with a small maintenance dose of vitamin D3. Each of 250 capsules contains 25 mcg of pure cholecalciferol in a base of unrefined extra virgin olive oil.
Composition and form of release
One capsule contains 25 mcg (1000 IU) of vitamin D3 in the form of cholecalciferol. This is the closest to the natural form that the body receives under the influence of sunlight. The basis is unrefined Extra Virgin olive oil and medium-chain triglycerides (MCT) oil, which promotes the absorption of the fat-soluble vitamin. Capsule shell: gelatin, glycerin, purified water. Additionally - rosemary extract as a natural antioxidant.
The product is gluten-free and certified as Non-GMO by LE Certified.
What is vitamin D3 for?
Vitamin D3 is involved in several body systems, which is why its deficiency is felt widely. Life Extension highlights four key areas of support.
- Bones and teeth. Vitamin D3, along with vitamin K and trace elements, ensures the transport of calcium into the bone matrix. Without sufficient levels of D3, calcium from food and supplements is absorbed less well.
- Immune function. Vitamin D3 is involved in regulating the immune response - this is one reason why its blood levels often decrease in winter in parallel with the increase in seasonal diseases.
- Cardiovascular system: Supports normal vascular endothelial function and promotes a healthy inflammatory response in the cardiovascular system. May also be relevant for maintaining normal renin levels, which are associated with normal blood pressure.
- Cognitive function: Studies show that people with normal serum levels of 25-hydroxyvitamin D perform better on cognitive health tests in older age. Vitamin D3 is often chosen as part of a daily diet to support brain function.
How much vitamin D3 should you take per day?
Manufacturer's recommendation: One capsule (1000 IU / 25 mcg) daily with food or as directed by a healthcare professional. Life Extension states that optimal blood levels of 25-hydroxyvitamin D are 50-80 ng/mL year-round.
If you already take D3 as part of a multivitamin, the 1000 IU format may be a good option to supplement without the risk of overdosing. For those who need higher doses (4000-5000 IU), Life Extension offers separate options - it is best to discuss these with your doctor after getting a 25(OH)D blood test.
How is 1000 IU different from 2000, 4000 or 5000 IU?
The only difference is the amount of cholecalciferol per capsule. The form of the substance, the base and the manufacturer are the same. The dosage of 1000 IU is convenient as a basic daily support or as a supplement to a multivitamin that already contains a partial dose of D3. The dosage of 2000-5000 IU is more often chosen in case of confirmed deficiency or in the winter period with minimal sun exposure.
The manufacturer recommends checking the D3 level in the blood after 3 months of regular intake and adjusting the dosage together with your doctor if necessary.
Who is this format suitable for?
250 capsules of 1000 IU - a large bottle with a long supply. Convenient for those who take D3 daily without interruption and do not want to buy a new package often. Also suitable for family use, if different family members have different dosage needs and some of them choose a lower dose.
The soft gelatin capsule with an oil base is easy to swallow and has no specific odor - unlike some liquid forms of D3.
Storage conditions
Store in a dry place at room temperature, away from direct sunlight. Close the bottle tightly after each use. The expiration date is indicated on the packaging.
Life Extension Vitamin D3 is available in the CBDUA store at cbdua.org. Shipping worldwide.