Vitamin D3 (cholecalciferol) is a steroid vitamin involved in many cellular processes and metabolism. PurePharma D3 is gently extracted from a natural source, sheep’s wool. It is then purified and blended with organic virgin coconut oil to ensure maximum absorption. PurePharma D3 is certified and tested for banned substances, purity and concentration by the independent laboratory IFIT (International Fitness Ingredient Testing) and is awarded 5 out of 5 stars.
- Maintains strong bones: Vitamin D is essential for the mineralization of bone, working in synergy with calcium. Vitamin D deficiency causes an increase of osteoid in the bone, an immature bone precursor. (1)
- Increases fast-twitch muscle fibers: The number and size of fast-twitch muscle fibers have been shown to increase with vitamin D supplementation. (2)
- Improves high intensity exercise performance: Vitamin D improves phosphocreatine recovery time, which improves high intensity exercise performance. (3)
- Improves immune system: Vitamin D can control both innate and adaptive immune responses, as the vitamin D receptor is present on all immune system cells. Deficiency in vitamin D is associated with increased autoimmunity as well as an increased susceptibility to infection. (4)
- Reduces risk of osteoporosis: Calcium in combination with vitamin D supplementation has been shown to prevent osteoporosis in people aged 50 years or older. (5)
- Improves sleep: Patients in a trial exhibited improved sleep quality when supplementing with vitamin D. (6)
- Blended with organic virgin coconut oil: Vitamin D3 is a fat-soluble vitamin. By blending vitamin D3 with high quality organic virgin coconut oil, containing high levels of medium chain triglycerides (MCTs), we ensure the fastest delivery and best absorption.
The recommended dietary allowance (RDA) for vitamin D is currently 400IU per day. More recently, experts are calling to increase the RDA of vitamin D to 600 international units (IU) for individuals aged 1-70. However Professor Heaney, Professor at the Creighton University School of Medicine and researcher at the Creighton University Osteoporosis Research Center, recommends adults take a much higher dose, 70-80 IU/day/kg of body weight. For a 70kg adult, this is equivalent to 4900IU per day.
Each PurePharma D3 soft gel contains 2500IU of vitamin D, so it is recommend that one is taken per day. Vitamin D is naturally synthesized in our skin when exposed to sunlight, however this can be dramatically affected by sunscreen, age and geographical location. We recommend taking two soft gels (containing 5000IU) if your sun exposure is less than 20 minutes per day.
PurePharma D3 should be taken regularly to benefit your long-term health. It is recommended that you have regular blood tests to maintain healthy vitamin D levels and supplement accordingly.
HOW TO TAKE PUREPHARMA D3
- Vitamin D is inversely related to melatonin, our primary sleep hormone. It is therefore advised that PurePharma D3 should be taken in the morning, to avoid interrupting sleep.
- Taking vitamin D with a large meal has been shown to dramatically increase absorption so we recommend taking PurePharma D3 with food (7). Do not take on an empty stomach.
- Vitamin D is a fat-soluble vitamin. Maximize results by taking with PurePharma O3.
HOW TO STORE PUREPHARMA D3
Keep PurePharma D3 in a cool, dark place (preferably in the fridge).
ALTERNATIVE SOURCES OF VITAMIN D
- Sunlight: UVB radiation from sunlight can produce vitamin D. Skin color, age and geographical location all have an impact on vitamin D synthesis through the skin. Sunscreen blocks the absorption of vitamin D. Therefore if sunblock is used, it might still be necessary to supplement vitamin D to reach adequate levels.
- Wild-caught salmon: Wild-caught salmon contains approximately 900IU of vitamin D per 100g. However, over 250g of wild salmon would have to be consumed in order to get the same quantity of vitamin D contained within one PurePharma D3 capsule. Also, farmed salmon has only 25% of the vitamin D content compared to wild salmon.
- Tuna: 100g of tuna contains around 400IU of vitamin D. There are, however, risks of eating high volumes of tuna and other large fish, due to the build up of mercury and other heavy metals.
1. Priemel, Matthias, et al. "Bone mineralization defects and vitamin D deficiency: Histomorphometric analysis of iliac crest bone biopsies and circulating 25-hydroxyvitamin D in 675 patients." Journal of Bone and Mineral Research 25.2 (2010): 305-312.
2. Cannell, JOHN J., et al. "Athletic performance and vitamin D." Med Sci Sports Exerc 41.5 (2009): 1102-10.
3. Sinha, Akash, et al. "Improving the vitamin D status of vitamin D deficient adults is associated with improved mitochondrial oxidative function in skeletal muscle." The Journal of Clinical Endocrinology & Metabolism 98.3 (2013): E509-E513.
4. Aranow, Cynthia. "Vitamin D and the immune system." Journal of investigative medicine: the official publication of the American Federation for Clinical Research 59.6 (2011): 881.
5. Tang, Benjamin MP, et al. "Use of calcium or calcium in combination with vitamin D supplementation to prevent fractures and bone loss in people aged 50 years and older: a meta-analysis." The Lancet 370.9588 (2007): 657-666.
6. Gominak, S. C., and W. E. Stumpf. "The world epidemic of sleep disorders is linked to vitamin D deficiency." Medical hypotheses 79.2 (2012): 132-135.
7. Mulligan, Guy B., and Angelo Licata. "Taking vitamin D with the largest meal improves absorption and results in higher serum levels of 25‐hydroxyvitamin D." Journal of Bone and Mineral Research 25.4 (2010): 928-930.
This blog was originally published on www.purepharma.com by Ryan Carey.