Vitamin D in a soft capsule.

ColeDose D3 is a soft capsule vitamin D supplement available in a range of doses. It can be used to treat vitamin D deficiency, or help boost levels that are low. An essential vitamin to stay on top of during winter, it can help keep your teeth, bones and muscles strong.
Speak to our experts about raising your vitamin D levels. Order ColeDose D3 and get it delivered the next day.
ColeDose D3 is a vitamin supplement that raises your vitamin D levels to the optimal amount you need to stay healthy.
Vitamin D is an essential vitamin that everybody needs to remain healthy. It regulates the amount of calcium and phosphate in the body, nutrients that keep your teeth, muscles and bones strong. A lack of this vitamin can cause a range of problems for both children and adults, such as rickets and osteomalacia.
People’s main source of vitamin D comes from exposure to natural sunlight. Other sources include eating food such as oily fish, red meat, and egg yolks. Some foods, like cereals, are fortified with Vitamin D.
Across Europe, particularly in the UK, getting adequate levels of vitamin D isn’t always easy. By exposing your skin to sunlight during the summer months, you’ll usually get your recommended daily amount (RDA) and won’t need to worry. But once the cold winter nights start to draw in and the sun goes into hiding, you might find yourself looking for other ways to get your vitamin D.
It’s no surprise that more and more people are reaching for supplements to top up their Vitamin D levels. The government even advises people take them throughout autumn and winter, knowing that sunshine is at a premium in these seasons.
Colecalciferol, the active ingredient in ColeDose D3, is a fat soluble version of vitamin D. By taking it daily, your levels will remain optimal and your immune system will get the boost it needs to keep you fit and healthy. As supplements work best alongside a healthy diet, you can speak to one of our clinicians about other ways you can keep your vitamin D levels topped up all year round.
In total, there are nine ColeDose D3 strengths available, ranging from 400iu-50,000iu.
To best explain which dose you’ll need to take, it’s worth learning how the strengths work. If you’re not familiar with it, IU stands for International Units. 1 microgram of vitamin D is equal to 40 IU.
In autumn and winter, it’s advised you should take no less than 10 micrograms of vitamin D, which is the equivalent of 400iu. This is the minimum daily capsule of ColeDoseD3, so one supplement a day should keep your vitamin D levels raised. Doses between 400-1000iu are the amounts people usually take per day. The higher doses of ColeDoseD3 might be prescribed if a blood test shows your vitamin D levels are low, in which case you’ll be advised by one of our doctors about the most suitable dose for you.
4000iu is the maximum amount you should take per day. Taking too much vitamin D can lead to a buildup of calcium in your blood (hypercalcemia).
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
ColeDose D3 is a soft capsule food supplement that can be swallowed with water. Vitamin D is fat-soluble, so we recommend taking it with your main meal of the day.
You might be advised to take more than one capsule a day if your vitamin D levels are low, or once a week depending on which strength you’re recommended. If you’re unsure about the amount you’re taking, just ask one of our clinicians.ColeDose D3 is designed to raise the vitamin D levels in your blood, but supplements should always work alongside a varied diet that contains plenty of fruit and vegetables.
It’s always best to stay in a routine for taking supplements, which is why we suggest taking each one with your main meal. If you do forget to take one, just pick up where you left off next time. There’s no need to try and double-up, as missing the odd capsule won’t send your vitamin D levels plummeting.
Choosing your ColeDose D3 strength will depend on where you’re currently at with your vitamin D levels. If you have a deficiency, you’ll likely be advised to take a high-strength capsule (anything over 1000iu per day) to raise your levels fast and give your immune system the boost it needs.
A lot of people who have a vitamin D deficiency have no symptoms at all. But levels that stay low for a long time can create problems you’ll want to avoid. Prolonged deficiencies have been known to cause bone pain, fatigue, and muscle twitches. Feeling physically unwell can have an impact on your mental health, so it’s no surprise that low vitamin D levels have been associated with mood disorders, such as anxiety and depression.
Because your health is important to us, we’ll make sure to check on you and see how your vitamin D levels are looking once you start regularly taking ColeDose D3.
How we source info.
When we present you with stats, data, opinion or a consensus, we’ll tell you where this came from. And we’ll only present data as clinically reliable if it’s come from a reputable source, such as a state or government-funded health body, a peer-reviewed medical journal, or a recognised analytics or data body. Read more in our editorial policy.
Have something specific you want to know? Search our info below, or ask our experts a question if you can’t find what you’re looking for.
Vitamin D - Vitamins and minerals. [online] Nhs.co.uk. Available at:
Vitamin D: The ‘sunshine’ vitamin. Journal of pharmacology & pharmacotherapeutics, [online] 3(2), pp.118–26. doi:10.4103/0976-500X.95506.Available at:
Vitamin D Deficiency. [online] PubMed. Available at:
Vitamin D and Depression: Where is all the Sunshine? Issues in Mental Health Nursing, [online] 31(6), pp.385–393. doi:10.3109/01612840903437657.Available at:
Vitamin D. [online] Nih.gov.
Registered with GMC (No. 4624794)
Meet DanielRegistered with GPhC (No. 2202465)
Meet SanjedaRegistered with GPhC (No. 2070724)
Meet CraigRegistered with GPhC (No. 2070338)
Meet RuaraidhDelivery, consultation, treatment. It’s all included in the price.
Not available
We know health, but you know you.
Our experts tell you what’s safe, but you decide what’s best.
Answer a few questions and tell us about yourself. Get tailored advice from our clinicians so you can choose better.
Choose your treatment and how often you have it delivered.
We know things change. It’s the nature of life. We’ll check in regularly to make sure your treatment is still right for you.
Pause. Change. Skip. Start again. Any time you like.
Excellent
Very quick and efficient
Good service
Easy and efficient
Quick delivery and well packed , email to see how you are getting on . Cery pleased and highly recommend
Great company, fast delivery
Our average rating based on 15979 reviews.
Vitamin D: Here are some other options.
Prescription only medication that's available as either a supplement or a treatment.
Halal and Kosher friendly, as well as free from gluten and lactose. A range of doses on prescription.
Available as an oral solution, capsule or liquid in a range of doses.
Gluten and lactose free, halal and vegetarian friendly. Available in 7 different doses.
Tablet that's available as a supplement or treatment dose. Vegetarian friendly.
Prescription-only soft gel capsule available in 3 doses. Halal and kosher friendly.
Vitamin D capsule that's suitable for a range of dietary requirements. Supplement and treatment doses available.
We're making healthcare more about you. Sign up to our newsletter for personalised health articles that make a difference.
Disclaimer: The information provided on this page is not a substitute for professional medical advice, diagnosis, or treatment. If you have any questions or concerns about your health, please talk to a doctor.
We couldn't find what you're looking for.
Here's everything we treat. Or, if you're looking for something we don't have yet, you can suggest something.
If there’s a particular treatment or condition you’re looking for, tell us and we’ll look into it for you.
If you made a mistake on the gender selection, you can amend this by pressing 'Cancel' below and changing your gender. If you entered the correct gender but made a mistake on the treatment category selection, you can choose a different category by pressing 'Choose other treatment' below.
You have recently requested a change to your treatment plan which is under review.
We'll let you know once our clinician has reviewed your request.
Our prescriber has already made treatment suggestions for you
You can view and select an option from your account.
You already have treatment for under review.
You have a consultation being reviewed. Our prescriber will contact you soon.
You already have a treatment plan for on pause. You can restart or make changes to this from your account.
Submit your question here, or tell us if you’ve found an issue on our site.
We’ll get back to you very soon. We aim to respond to all queries in one working day.
You’re signed up to our newsletter. Keep an eye on your inbox for our latest update.
By clicking 'Subscribe now' you're agreeing to our Privacy Policy.
Your order is on hold because we need to verify your identity.
You have an order on hold because we couldn’t take your payment. To continue, please add a new payment method.