{"id":125222,"date":"2023-11-23T10:18:50","date_gmt":"2023-11-23T10:18:50","guid":{"rendered":"https:\/\/websitedesigns.com.au\/elankanew\/?p=125222"},"modified":"2023-11-23T10:19:54","modified_gmt":"2023-11-23T10:19:54","slug":"how-does-one-determine-the-right-amount-and-type-of-vitamin-d-to-take-by-dr-sunil-wimalawansa","status":"publish","type":"post","link":"https:\/\/websitedesigns.com.au\/elankanew\/how-does-one-determine-the-right-amount-and-type-of-vitamin-d-to-take-by-dr-sunil-wimalawansa\/","title":{"rendered":"How Does One Determine the Right Amount and Type of Vitamin D to Take? &#8211; By Dr. Sunil Wimalawansa"},"content":{"rendered":"<h2 style=\"text-align: center;\"><span style=\"color: #800000;\"><strong>How Does One Determine the Right Amount and Type of Vitamin D to Take? &#8211; By Dr. Sunil Wimalawansa<\/strong><\/span><\/h2>\n<p><span style=\"font-size: 16px; color: #000000;\">Source :\u00a0<a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/one-determine-right-amount-type-vitamin-d-take\/\" target=\"_blank\" rel=\"noopener\">grassrootshealth<\/a><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Prof. Sunil Wimalawansa elaborates on calculating the correct amount of vitamin D to take and when certain forms of supplementation should be considered (Interview Series Part 4)<\/span><\/p>\n<div>\n<h3><span style=\"font-size: 16px; color: #000000;\">Key Points<\/span><\/h3>\n<ul>\n<li><span style=\"font-size: 16px; color: #000000;\">Administration of the proper doses daily or weekly will significantly reduce disease and hospital burdens, healthcare costs, loss of productivity, and absenteeism<\/span><\/li>\n<li><span style=\"font-size: 16px; color: #000000;\">Because of the rapidity of action, the use of calcifediol is indicated in emergencies, such as acute infections (e.g., SARS-CoV-2), sepsis, and ICU setups, and is also indicated in liver failure [i.e., when there is a reduced capacity of hepatocytes to produce 25(OH)D] and in \u201csevere\u201d fat malabsorption syndromes, including following gastric bypass surgery<\/span><\/li>\n<li><span style=\"font-size: 16px; color: #000000;\">Irrespective of any loading dose used, one must start an appropriate daily maintenance dose to maintain serum 25(OH)D concentrations above 50 ng\/mL within a couple of weeks<\/span><\/li>\n<li><span style=\"font-size: 16px; color: #000000;\">Calcitriol is indicated in renal failure to prevent tertiary hyperparathyroidism and to maintain serum-ionized calcium concentration; it is not indicated for use in infections, and if high doses of calcitriol are used, it will be associated with severe adverse effects<\/span><\/li>\n<\/ul>\n<hr \/>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><a href=\"https:\/\/www.grassrootshealth.net\/blog\/one-determine-right-amount-type-vitamin-d-take\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\" lazyloaded alignright wp-image-8839\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/dr-sunil-w-headshot.jpg\" alt=\"\" width=\"140\" height=\"195\" data-src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/dr-sunil-w-headshot.jpg\" \/><\/a>Dr. Sunil Wimalawansa has been researching vitamin D for over four decades and is considered one of the world\u2019s leading experts on micronutrients, especially vitamin D. His extensive background includes working with vitamin D in the laboratory setting, applying his vitamin D knowledge, working with patients as a medical doctor, and directing clinical trials involving vitamin D.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">We introduced Dr. Wimalawansa in Part 1 of this interview series,\u00a0<em><a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/vitamin-d-everything-need-know\/\">Vitamin D: Everything You Need to Know\u2026 and More<\/a><\/em>, and shared his answers to questions about optimal vitamin D levels and doses and how they may differ for certain individuals in Part 2,\u00a0<em><a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/defining-optimal-levels-doses-vitamin-d-every-individual\">Defining Optimal Levels and Doses of Vitamin D for Every Individual<\/a><\/em>, followed by a detailed description of the forms vitamin D3, 25(OH)D, and 1,25(OH)2D and when each might be considered for measurement and\/or supplementation in Part 3, \u201c<em><a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/understanding-forms-vitamin-d-vitamin-d3-25ohd-125oh2d\/\">Understanding the Forms of Vitamin D: Vitamin D3, 25(OH)D, and 1,25(OH)2D<\/a><\/em>.\u201d<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Today\u2019s post will review questions and answers with Dr. Wimalawansa on how to supplement with vitamin D (doses and timing) and what forms of vitamin D should be considered during specific circumstances.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><strong>Note:<\/strong>\u00a0<a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/d2-vs-d3-difference\/\">Vitamin D2 (ergocalciferol)<\/a>\u00a0will not be discussed, as it is a synthetic (non-human) product that is derived from plant precursors that is not utilized by the body as efficiently as vitamin D3. With a much shorter half-life, it remains in the blood for only a few hours. Supplementation with vitamin D3 is recommended.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Questions and Answers with Dr. Sunil Wimalawansa: Vitamin D Dosing and Supplement Forms<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Can you tell us how an individual can determine the most helpful amount or what vitamin D dose you recommend that applies to a broader population?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Vitamin D threshold and the minimal necessary levels do not change between people or disease status. Calculating the proper amounts of vitamin D dose for individuals should be based on either the serum 25(OH)D concentration (if known but not essential), BMI, or body weight [<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/14\/14\/2997\" target=\"_blank\" rel=\"noopener\">Wimalawansa, SJ, Nutrients, 14(14), 2997, 2022; https:\/\/doi.org\/10.3390\/nu14142997<\/a>]. Based on the principles discussed previously, we published the simplified version of \u201cvitamin D dose calculation\u201d for individuals that applies to all body weight groups (<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/15\/17\/3842\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/nu14142997; 10.3390\/nu15173842<\/a>):<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">I. Not obese (average wt.: BMI \u2264 29): 70-90 IU\/kg BW<\/span><br \/>\n<span style=\"font-size: 16px; color: #000000;\">II. Moderately obese (BMI 30-39): 100-130 IU\/kg BW<\/span><br \/>\n<span style=\"font-size: 16px; color: #000000;\">III. Morbid obesity (BMI \u2265 40): 140-180 IU\/kg BW<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Note: All current vitamin D guidelines are based on outdated and some false concepts and research methodologies published 30+ years ago\u2014(<a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/results-first-randomized-controlled-trials-vitamin-d-cancer\/\">Results from the first randomized controlled trials on vitamin D and cancer \u2013 GrassrootsHealth<\/a>). As described above,\u00a0<strong>raising the minimum and upper limit of serum 25(OH)D concentrations to 50 and 80 ng\/mL (125 to 200 nmol\/L) and the safe upper limit of intake from the current 10,000 to 15,000 IU\/day is indicated based on more recent data is essential<\/strong>. The average daily vitamin D intake for a non-obese 70 kg adult to maintain serum 25(OH)D levels between 50 and 80 ng\/mL is 5,000 IU. Three straightforward suggestions are mentioned above; the needed amount of vitamin D can be easily calculated using an individual\u2019s body weight or BMI.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Administration of the proper doses daily or weekly will significantly reduce disease and hospital burdens, healthcare costs, loss of productivity, and absenteeism. Daily intakes of vitamin D exceeding 7,000 IU or 50,000 IU\/ once a week and above in a non-obese 70 kg person will increase the serum 25(OH)D to the range between 60 and 90 ng\/mL. For those who maintain their serum 25(OH)D concentrations at those levels or above, it is advisable to also take vitamin K2 (MK-7).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">GrassrootsHealth has also created a\u00a0<a style=\"color: #000000;\" href=\"https:\/\/www.grassrootshealth.net\/blog\/new-loading-dose-vitamin-dcalculator\/\">Vitamin D*calculator<\/a>\u00a0in which an individual can enter their current 25(OH)D level (if known), their weight, and their desired 25(OH)D level. The calculation provides two options for increasing your vitamin D levels \u2013 a \u201cLoading Dose\u201d (divided into doses of 25,000 IU over several days) and a \u201cMaintenance Dose\u201d (capped at 10,000 IU per day), allowing users to choose how quickly they would like to achieve their desired levels. The vitamin D* calculator can also suggest a daily vitamin D intake for individuals who enter only their weight and target 25(OH)D level. This calculation is an estimate based on the average intake required for people of the same body weight.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Which is better \u2013 taking vitamin D daily, once a week, or other?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Humans are supposed to generate most of the \u201cdaily vitamin D3 requirement\u201d from UVB rays from sunlight. Daily sun exposure or supplementation keeps the circulatory levels of D3 and 25(OH)D stable. Physiologically, this is important, as\u00a0<strong>D3 and 25(OH)D enter peripheral target tissues like immune and breast cells to generate the non-hormonal form of calcitriol that has a variety of physiological functions. This is especially important during pregnancy and for breastfeeding mothers<\/strong>, as it is predominantly vitamin D that enters the placenta and breastmilk. A daily intake of around 6,000 IU vitamin D has been shown to provide the breastfeeding infant with 400-500 IU per day of vitamin D; maintaining a target 25(OH)D serum level (such as with weekly or longer dosing) is less effective. (<a style=\"color: #000000;\" href=\"https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3849670\/\" target=\"_blank\" rel=\"noopener\">https:\/\/www.ncbi.nlm.nih.gov\/pmc\/articles\/PMC3849670\/<\/a>). Considering the short half-life of D3, \u201cdaily consumption\u201d or sun exposure is the best option compared to taking it once a week or less frequently.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">The main advantage of weekly vitamin D consumption is that it is easier to remember to take, improving adherence to therapy. There are many medications where a weekly schedule improves compliance (adherence to the therapy) compared to daily. However, generally, there is no clinical rationale or value for taking vitamin D less frequently than once a month or taking vitamin D metabolites (or analogs) as \u201cvitamin D supplements.\u201d<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Could calcifediol be superior to D3 as a vitamin D supplement? \u00a0The answer is NO.<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><a href=\"https:\/\/www.grassrootshealth.net\/blog\/one-determine-right-amount-type-vitamin-d-take\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"lazyloaded alignright wp-image-8928 size-medium\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-300x200.jpg\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-300x200.jpg 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-768x512.jpg 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-1024x683.jpg 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-260x173.jpg 260w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-1200x800.jpg 1200w\" alt=\"\" width=\"300\" height=\"200\" data-srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-300x200.jpg 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-768x512.jpg 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-1024x683.jpg 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-260x173.jpg 260w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-1200x800.jpg 1200w\" data-src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/d-prescription-supplements-300x200.jpg\" data-sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a>As we discussed, vitamin D is partially activated in the liver to form calcifediol [25-hydroxyvitamin D; 25(OH)D]), the primary circulating form. It is the most abundant vitamin D metabolite in the circulation and a measure to assess \u201cvitamin D status.\u201d While vitamin D is an over-the-counter nutrient supplement, calcifediol is a prescription medication in most countries that is expensive and difficult to obtain. The reported toxicity of calcifediol is higher than D3 (<a style=\"color: #000000;\" href=\"https:\/\/link.springer.com\/article\/10.1007\/s00394-023-03103-1\" target=\"_blank\" rel=\"noopener\">DOI: 10.1007\/s00394-023-03103-1<\/a>).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Based on equivalent international units, calcifediol costs 10 to 20 times more than vitamin D3, and availability of that suitable for human consumption is limited. In a few countries, calcifediol is also available as a slow-release or long-acting form. They are even more expensive; neither preparation is justified as routine vitamin D replacement therapy. Their use is cost-prohibitive when an over-the-counter, cheaper alternative D3 is available. Calcifediol extended-release analogs have no advantage over standard calcifediol under regular clinical use, including for liver or renal failure. When the cost of calcifediol is reduced by more than the-fold and becomes available over the counter in the future, it could become comparable to D3. It is inappropriate to prescribe calcifediol (or calcitriol) as a vitamin D supplement to correct hypovitaminosis D\u2014e.g., for otherwise healthy people.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>At what point might (or are there any conditions in which) a practitioner might supplement with oral calcifediol instead of vitamin D3?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Using calcifediol instead of vitamin D3 as a routine daily or weekly replacement therapy is not cost-effective as a replacement therapy for vitamin D deficiency or osteoporosis (and not recommended). While it has been suggested for use in renal failure, especially when liver functions are normal, there is no significant advantage (i.e., D3 is converted sufficiently into calcifediol in the liver), but it unnecessarily incurs additional costs. That push and marketing calcifediol for broader usage or as an alternative to vitamin D supplements primarily do so for commercial reasons.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">The practical difference between vitamin D and calcifediol is the rapidity of raising serum 25(OH)D concentrations. The rising of serum 25(OH)D with calcifediol is linear and more predictable than cholecalciferol (D3), but it comes at a significantly higher cost (<a style=\"color: #000000;\" href=\"https:\/\/link.springer.com\/article\/10.1007\/s00394-023-03103-1\" target=\"_blank\" rel=\"noopener\">DOI: 10.1007\/s00394-023-03103-1<\/a>).\u00a0<strong>Calcifediol raises blood levels of 25(OH)D within 4 hours, whereas vitamin D takes two to four days.<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><strong>Because of the rapidity of action, calcifediol is indicated in emergencies, such as acute infections (e.g., SARS-CoV-2), sepsis, and ICU setups<\/strong>\u00a0(<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/14\/14\/2997\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/nu14142997<\/a>).\u00a0<strong>Calcifediol is also indicated in liver failure [i.e., when there is a reduced capacity of hepatocytes to produce 25(OH)D] and in \u201csevere\u201d fat malabsorption syndromes<\/strong>\u00a0(<a style=\"color: #000000;\" href=\"https:\/\/www.sciencedirect.com\/science\/article\/pii\/S0002916522004415\" target=\"_blank\" rel=\"noopener\">DOI: 10.1093\/ajcn\/nqab123<\/a>), including following gastric bypass surgery. The following figure illustrates the differences between vitamin D3, calcifediol, and calcitriol (<a style=\"color: #000000;\" href=\"https:\/\/crimsonpublishers.com\/gjem\/pdf\/GJEM.000571.pdf\" target=\"_blank\" rel=\"noopener\">DOI: 10.31031\/GJEM.2023.03.000571<\/a>).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><a href=\"https:\/\/www.grassrootshealth.net\/blog\/one-determine-right-amount-type-vitamin-d-take\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"lazyloaded aligncenter wp-image-8926\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation.jpg\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation.jpg 1430w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-300x188.jpg 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-768x481.jpg 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-1024x641.jpg 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-260x163.jpg 260w\" alt=\"\" width=\"600\" height=\"376\" data-srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation.jpg 1430w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-300x188.jpg 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-768x481.jpg 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-1024x641.jpg 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation-260x163.jpg 260w\" data-src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/Dr-Wimalawansa-forms-in-circulation.jpg\" data-sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>When using calcifediol, is it necessary to supplement with vitamin D3 simultaneously?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Great question. Calcifediol and vitamin D are not mutually exclusive and can be given simultaneously in emergencies, as in infections on admissions, which we strongly recommend (<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/14\/14\/2997\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/nu14142997<\/a>).\u00a0<strong>In emergencies, we recommend using a single dose of calcifediol 0.5 to 1 mg (calculated, 0.014 mg\/kg body weight) for its immediate effects and a high dose of D3 for delayed raising and maintenance of serum 25(OH)D concentrations for prolonged benefits<\/strong>\u00a0(<a style=\"color: #000000;\" href=\"https:\/\/www.tandfonline.com\/doi\/full\/10.2147\/PLMI.S373617\" target=\"_blank\" rel=\"noopener\">DOI: 10.2147\/PLMI.S373617<\/a>). Alternatively, its longer half-life allows it to be used once or twice weekly as needed during the emergency period, such as during recovery from an infection.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>What is your recommendation on the doses and frequency of administering calcifediol for healthcare practitioners?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">In emergencies, calcifediol is administered as a single dose with high doses of vitamin D to maintain circulatory 25(OH)D for an extended period. Calcifediol can also be taken every third or fourth day during an emergency. Because of the high cost (and availability issues) and to get the best results, it is best to administer as a single oral dose, between 0.5 and 1.0 mg, at the first encounter with a patient who needs rapidly raising serum 25(OH)D concentration, as in acute infection. This will significantly expedite recovery with fewer complications and deaths (<a style=\"color: #000000;\" href=\"https:\/\/www.tandfonline.com\/doi\/full\/10.2147\/PLMI.S373617\" target=\"_blank\" rel=\"noopener\">DOI: 10.2147\/PLMI.S373617<\/a>). The best option is to administer a single dose of calcifediol and a higher dose of vitamin D simultaneously, as early as possible: at first encounter or on admission to a hospital.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">When calcifediol is unavailable in an emergency, administering a single bolus (upfront loading dose) of vitamin D between 100,000 and 400,000 IU should be considered. The amount depends on the circumstance and the patient\u2019s body weight (<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/14\/14\/2997\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/nu14142997<\/a>).\u00a0<strong>Irrespective of the loading dose used, one must start an appropriate daily maintenance dose, as we discussed above, to maintain serum 25(OH)D concentrations above 50 ng\/mL within a couple of weeks<\/strong>\u00a0(usually at discharge from the hospital). The mechanisms, benefits, and indications for calcifediol are explained in detail in the following publications (<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2227-9059\/11\/6\/1542\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/biomedicines11061542<\/a>;\u00a0<a style=\"color: #000000;\" href=\"https:\/\/www.tandfonline.com\/doi\/full\/10.2147\/PLMI.S373617\" target=\"_blank\" rel=\"noopener\">DOI: 10.2147\/PLMI.S373617<\/a>).<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Are there specific indications for using calcifediol or calcitriol?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Yes, there are specific indications for using calcifediol; it should not be used as a routine vitamin D supplement (despite being advertised by pharma and some physicians). This is due to its high cost, the lack of availability (thus, it should be reserved for emergencies), the potential high risk for adverse effects, and the unfamiliarity of most healthcare workers with proper use. Calcifediol is indicated (A) when 25-hydroxylation of vitamin D is impaired, as in hepatic (liver) failure, and (B) when there is a clinical reason for a rapidly rising serum 25(OH)D concentration (i.e., acute infection). While it can be used in other circumstances, such usage is not cost-efficient.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><strong>The recommended dose of calcifediol is approximately 1.0 mg for a non-obese 70 kg adult and 0.5 mg for an adolescent (0.014 mg\/kg body weight).<\/strong>\u00a0For details on dose-calculations, please see\u00a0<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/14\/14\/2997\" target=\"_blank\" rel=\"noopener\">Table 3: 10.3390\/nu14142997<\/a>.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">As we discussed, vitamin D metabolites (and analogs) are restricted to specific situations, such as calcifediol in hepatic failure and emergencies. In addition, calcifediol is used to rapidly raise serum 25(OH)D concentrations and maintain serum 25(OH)D concentrations in severe fat malabsorption syndromes, as with following Roux-en-Y Gastric bypass surgery.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><strong>Calcitriol is indicated in renal failure to prevent tertiary hyperparathyroidism and to maintain serum-ionized calcium concentration.<\/strong>\u00a0Even pharmacological doses of exogenous calcitriol generate too little circulatory concentration for it to enter immune cells. Therefore,\u00a0<strong>calcitriol is not indicated in infections. If high doses of calcitriol are used, that will be associated with severe adverse effects<\/strong>. Understanding the mechanisms we discussed above and in recently published peer-reviewed papers allows proper selection and the use of vitamin D metabolites to save lives.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Why is there a lack of uniformity in the doses and serum 25(OH)D concentrations necessary to keep people healthy?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">The answer to this question depends on whether a healthcare worker is considering treating a specific system in the body, like the musculoskeletal or cardiovascular system, or holistically. The latter would always make the body resilient and protect it from unexpected harmful events such as an injury, disease, or an infection like SARS-CoV-2, thus providing a broader cover.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">The following figure illustrates the consequences of vitamin D deficiency as it affects the whole body.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><a href=\"https:\/\/www.grassrootshealth.net\/blog\/one-determine-right-amount-type-vitamin-d-take\/\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" loading=\"lazy\" decoding=\"async\" class=\"lazyloaded aligncenter wp-image-8927\" src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency.png\" sizes=\"auto, (max-width: 650px) 100vw, 650px\" srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency.png 1430w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-300x170.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-768x434.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-1024x579.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-260x147.png 260w\" alt=\"\" width=\"601\" height=\"340\" data-srcset=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency.png 1430w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-300x170.png 300w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-768x434.png 768w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-1024x579.png 1024w, https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency-260x147.png 260w\" data-src=\"https:\/\/www.grassrootshealth.net\/wp-content\/uploads\/2023\/11\/wimalawansa-d-deficiency.png\" data-sizes=\"(max-width: 650px) 100vw, 650px\" \/><\/a><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">System-based therapy and medicine is a traditional compartmentalized medicine taught in all medical, osteopathic, and nursing schools. This is what almost all healthcare workers practice worldwide. Instead, with that basic knowledge, they should re-train and set their minds to holistic approaches, including (a) improving their listening capacity and (b) focusing on healing the whole patient, enriching their mind and the body.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">We have the same issues regarding vitamin D. Healthcare workers are trained to work on system-based, compartmentalized thinking. Consequently, they focus on treating a part of the body or a system, not the entire patient as it should be. This learned habit of ignoring the whole person, dissociating the mind and the body connection, led scientists to design clinical trials based on one disease, a part of the body system, or a specific tissue. This deep-rooted subspeciality-based silo-mentality frequently manifests in study design as avoidable major errors. Such study data overlooks the entire person, thus leading to faulty or inferior clinical recommendations.<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><em><strong>Is this due to ignorance or suppression of information?<\/strong><\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">The mentioned silo-mentality of scientists, medical specialists, and their scientific societies then publish contradictory guidelines with different recommendations for vitamin D doses. This has been varied from 400 IU to 4,000 IU\/day for an adult and minimum effective serum 25(OH)D concentration, from 20 to 40 ng\/mL, etc. This is not different from (or analogy) six blind men describing the shape of an elephant by touching different parts\u2014i.e., for the individual disease or body system they are interested in, their proposed maximum levels might work, but not for the entire body.\u00a0<strong>We need a minimal serum 25(OH)D level that overcomes all disorders affecting the body at 50 ng\/mL.<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\">Special interest groups and patient advocacy groups propagate these contradictory recommendations to favor their advantage and position, which worsens the confusion, preventing the progress of the vitamin D field (<a style=\"color: #000000;\" href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32713358\/\" target=\"_blank\" rel=\"noopener\">DOI: 10.1017\/S0007114520002950<\/a>). Consequently, big pharma and governments exploit this mass confusion and the lack of unity among scientists to their advantage. They support maintaining outdated vitamin D recommendations to sell their patented products at ten to hundred-fold higher prices. This keeps people unhealthy and requires more doctors\u2019 visits, medications, and hospitalizations. Similar approaches have been used by big pharma, using their misinformation playbooks.<\/span><br \/>\n<span style=\"font-size: 16px; color: #000000;\">(<a style=\"color: #000000;\" href=\"http:\/\/orthomolecular.org\/resources\/omns\/v14n22.shtml\" target=\"_blank\" rel=\"noopener\">http:\/\/orthomolecular.org\/resources\/omns\/v14n22.shtml<\/a>)<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #800000;\"><strong>Note: An independent vitamin D researcher from Australia (Robin Whittle) recently made the following comments:<\/strong><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><em>\u201cEveryone should follow Prof. Wimalawansa\u2019s recommendation. Then, 99.5% would have their 25(OH)D levels above the critical lower limit of 50 ng\/mL (125 nmol\/L), which is crucial for proper immune system functions. With no vitamin D3 supplementation and no recent summertime-like UV-B skin exposure, most people have only between 20 to 50% of the 25(OH)D needed to be healthy and minimize complications from infection and sepsis. The government-recommended daily vitamin D3 supplementation, such as 0.02 mg (800 IU), has no beneficial effect on the immune system to overcome infections.<\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><em>If everyone followed Prof. Wimalawansa\u2019s advice, there would be no pandemic influenza or COVID-19 (now or in the future)\u2014and the epidemic of sepsis that kills eleven million annually worldwide (DOI: 10.1016\/S0140-6736(19)32989-7 https:\/\/www.thelancet.com\/article\/S0140-6736(19)32989-7\/fulltext). It will also minimize chronic diseases, like dementia, cognitive disorders, Kawasaki disease, and Multisystem Inflammatory Syndrome (MIS) in children and adults (<a style=\"color: #000000;\" href=\"https:\/\/www.mdpi.com\/2072-6643\/15\/16\/3623\" target=\"_blank\" rel=\"noopener\">DOI: 10.3390\/nu15163623<\/a>).\u201d<\/em><\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-size: 16px; color: #000000;\"><strong><em>* The above is a scientific discussion and should not be considered medical advice. Regarding clinical or personal issues, Prof. Wimalawansa advises readers to consult her\/his physician.<\/em><\/strong><\/span><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>How Does One Determine the Right Amount and Type of Vitamin D to Take? &#8211; By Dr. Sunil Wimalawansa Source :\u00a0grassrootshealth Prof. Sunil Wimalawansa elaborates on calculating the correct amount of vitamin D to take and when certain forms of supplementation should be considered (Interview Series Part 4) Key Points Administration of the proper doses [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":125224,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"aside","meta":{"footnotes":""},"categories":[20],"tags":[57851,57850,3679,57853,57852],"class_list":{"0":"post-125222","1":"post","2":"type-post","3":"status-publish","4":"format-aside","5":"has-post-thumbnail","7":"category-articles","8":"tag-prof-sunil-wimalawansa","9":"tag-right-amount-and-type-of-vitamin-d-to-take","10":"tag-vitamin-d","11":"tag-vitamin-d-dosing-and-supplement-forms","12":"tag-vitamin-d-levels","13":"post_format-post-format-aside"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.7.1 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How Does One Determine the Right Amount and Type of Vitamin D to Take? - By Dr. Sunil Wimalawansa - eLanka<\/title>\n<meta name=\"description\" content=\"How Does One Determine the Right Amount and Type of Vitamin D to Take? 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