Vitamin D3 Dosage

What is a safe vitamin D Dose?

When it comes to Vitamin D3 dosage questions, top of that list is “How much Vitamin D3 should I take daily?”

It’s well documented what the Vitamin D3 benefits are of taking SunVit-D3 supplements on a daily or weekly basis to enable you and your children to enjoy the long term health benefits of improved wellbeing.


What Is the Vitamin D3 Daily Requirement?


So here come the important bits: The recommended daily maintenance dosage is 400IU daily (or 10µg) as outlined in the NICE (National Institute for Health and Care Excellence) guidance. This guidance was developed to ensure that the UK population has a satisfactory level of Vitamin D throughout the year, in order to protect musculoskeletal bone health. The SACN (Scientific Advisory Committee on Nutrition) has also issued consumption guidelines on Vitamin D to protect bone and muscle health. Here at SunVit-D3 we recommend a vit D3 dose between 400 IU and 2,000 IU taken daily either through tablet, capsules or liquid form. Based on clinical trials and research evidence, to maintain the correct levels of 25-Hydroxyvitamin D, one or two SunVit-D3 1000 IU Tablets taken per day with your main meal works well for the majority of people. Once the body has the correct levels of 25-Hydroxyvitamin D, it will flush out any that is not needed.

Is Vitamin D3 for Kids a Good Idea?


Vitamin D3 for children is essential for their development and plays a vital role in the normal growth and maintenance of their bones and immune systems. Vitamin D3 dosage guidelines and advice from Public Health England (PHE), says that adults AND children over the age of one should have 400IU (or 10µg) of vitamin D every day, especially during autumn and winter when there is less sunshine. The NHS also advises that babies up to the age of one year need 340-400IU (or 8.5-10µg) of vitamin D a day and from one year of age, this goes up to 400IU (or 10µg) a day for children. Furthermore, the Department of Health recommends that all babies and young children aged 6 months to 5 years should take a daily supplement containing vitamin D in the form of vitamin drops, to help them to meet the requirement.


SunVit-D3 Oral Solution and Oral Drops both contain pure vitamin D3 (Cholecalciferol Oil), Sunflower Seed Oil, Orange Oil and D-Alpha Tocopherol Acetate Oil.  It’s a tasty orange flavour and the easy to administer syringe makes it ideal for children (or adults who don’t like taking tablets) and it can also be mixed with food and drinks.


Children 1 month to 18 years should take 0.5ml of the Sunvit-D3 Oral Solution to be taken daily or as directed by your healthcare practitioner.


Want to know more about the benefits of Vitamin D3 for kids, then take a look here at “Why Do Children Need Vitamin D”.

How Is Vitamin D3 Measured?


Now you know the Vitamin D3 daily requirements and dosages, the next big question we’re asked is how is Vitamin D3 measured. We have talked about ‘IU’ and ‘µg’ but what exactly do these stands for and more importantly what do they mean. SunVit-D3 supplements have different strengths of Vitamin D3 and the ‘µg’ stands for micrograms. Micrograms are used to measure the biological activity of vitamins and are based on the same measure as International Units (IU) but are not equivalent. So, 1 IU is the biological equivalent of 0.025 µg cholecalciferol.


The current Nutrient Reference Value of Vitamin D3 is 200 IU (5µg).

Can You Take More Than the Recommended Daily Maintenance Vitamin D3 Dosage of 400IU Daily (or 10µg)?


We always recommend when it comes to high dose Vitamin D3 and how much to take, that this should only be taken under the supervision of your healthcare professional. We launched the high strength doses of SunVit-D3 in response to requests from Healthcare professionals in the UK for a high-quality vitamin D3 product manufactured under GMP in the UK. Supplementing with Vitamin D 1,000 to 2,000 units (IU) per day will raise blood serums within a few months and allow individuals to benefit from this essential vitamin. The vitamin d3 dosage 20,000 iu Informed Sports approved has one tablet to be taken once weekly, or as advised by your healthcare practitioner. The higher strengths of SunVit-D3® supplements are available without a prescription but are not intended for long term usage. To help understand each strength and ensure a safe dose of Vitamin D3 is taken, we have designed bold and distinctive colour coded packaging with braille.

Is It Possible to Take Too Much Vitamin D3?


Too much sun exposure doesn’t result in vitamin D toxicity because of the auto-regulation mechanisms that limit the amount produced in the skin. It is also very unlikely to get too much vitamin D from food due to the amount contained even in vitamin D rich foods. Toxicity is more likely to occur from high intakes of dietary supplements containing vitamin D, which is why we always advise that high strengths should only be taken after seeking advice from your Health Practitioner and before ordering.


There’s a Vitamin D3 Supplement for Everyone…


Our plant-based version of Vitamin D3 tablets is ideal for vegans. The SunVit-D3 vegan-friendly range is approved by the Vegetarian Society UK.


Our tablets are also dairy-free and gluten-free, visit our VITAMIN D3 SHOP to see all the Vitamin D3 supplements, including tablets, capsules, and liquids available.

Vegan Approved

Approved Vegan by the Vegetarian Society


Approved by
Informed Sport


Certified as Halal by the Halal Monitoring Committee

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