Although everyone agrees that vitamin D is essential for our good health, many people underestimate the extent of its benefits, and the optimal daily dose is still debated.
It is well known that vitamin D plays an essential role in immunity and calcium absorption. But at an optimal dose, several studies indicate that vitamin D would also be useful in our general development, in the prevention of certain cancers, cavities and certain autoimmune diseases and even in reducing the risk of onset of type 1 diabetes.
In fact, the preventive effectiveness of vitamin D is directly related to the amount of vitamin D found in our blood. For the same dose of vitamin D, we find that the blood level obtained varies from one person to another. Since we live in a region where winter is king and we must constantly protect our skin with sunscreen, the amount of vitamin D that we produce naturally by our skin is, most of the time, insufficient. Also, although certain foods may contain vitamin D, we must also admit that we cannot rely on our daily diet to meet our vitamin D needs. It is for these reasons that Health Canada recommends taking a vitamin D supplement every day and it is also for all these reasons that Health Canada regularly updates its recommendations.
In February 2021, Health Canada increased again the maximum dose allowed for over-the-counter supplements to 2,500 IU per day and also set the total maximum intake at 4,000 IU per day. This recommendation is for people ages 9 and up. But why does Health Canada increase the recommended daily dose so often?
This is because more and more studies confirm not only the many benefits of vitamin D on our health but also that most people do not reach the optimal blood level of vitamin D which is 50 nmol/L. At the same time, several studies show that higher daily doses are perfectly safe.
In fact, among healthy people, several studies even confirm that 5,000 IU per day would be the optimal dose to reach the optimal level of 50 nmol/L. And according to other studies, a dose of 10,000 IU per day would be safe since no side effects have been reported at this dosage.
One thing is certain: vitamin D is synonymous with good health and you should not be afraid to take 2,500 IU a day. This maximum daily dose allowed by Health Canada is very safe.
Among the supplements available, the Land Art brand is the only one to offer a 2,500 IU vitamin D3 that is certified organic. Available in the best natural health product stores as well as online, this great Canadian product contains 490 doses and only one drop a day is enough! Unflavoured and preservative-free, this vitamin D can be taken directly on the tongue. Its affordable price, unique organic certification, and convenient dropper make Land Art’ Certified Organic Vitamin D3 2500 IU the perfect product!
For more information on the different vitamins D3 offered by Land Art, visit our web page dedicated to these vitamins.
Cheers!
By Nicolas Martineau B.Sc. Nutrition
References :
Hathcock JN, Shao A, Vieth R, Heaney R. Risk assessment for vitamin D. Am J Clin Nutr. 2007 Jan;85(1):6-18. Review. PubMed PMID: 17209171.
Grant WB, Holick MF. Benefits and requirements of vitamin D for optimal health: a review. Altern Med Rev. 2005 Jun;10(2):94-111. Review. PubMed PMID: 15989379. http://www.altmedrev.com/publications/10/2/94.pdf
https://ro.co/health-guide/vitamin-d-5000-iu/
https://pubmed.ncbi.nlm.nih.gov/30611908/
https://betterhealthwhileaging.net/vitamin-d-healthy-aging-dose-faqs/