Halal, veggie friendly vitamin D that’s lacto-free.

Pro D3 is a vitamin D treatment that comes in a range of doses. It can be used to either prevent or treat vitamin D deficiency and protect against related health problems like osteoporosis.
Our subscriptions mean you never need to worry about running low on vitamin D again, with flexible delivery options to suit your needs. Take our consultation and order Pro D3 online.
Pro D3 is one of a number of vitamin D supplements and treatments that can be used to treat and prevent severe deficiencies from occurring. It comes in capsule and liquid forms, as well as different strengths, depending on why it’s being taken.
We get most of our vitamin D from the sun, or at least we should. But unfortunately, this isn’t always easy during the winter months. This is particularly a problem for people with darker skin, which does not process vitamin D from the sun as efficiently as those with lighter skin.
Supplements are a great solution, and Pro D3 offers various strengths to provide protection against severe deficiencies that can lead to serious conditions like osteoporosis. Prescription strengths are available, and we can provide these after you’ve talked to us about your health.
Pro D3 works by increasing the amount of vitamin D in your body, thanks to its main ingredient - colecalciferol, which your body processes and converts into vitamin D.
Vitamin D is an important part of healthy body function, and it can:
Pro D3 is available in 5 different ‘maintenance’ doses, ranging from 400 to 2,500 IU (IU is the measurement by which supplement strength is measured) and 2 different treatment doses: 20,000 and 30,000 IU.
A maintenance dosage might be needed to slightly increase your levels of vitamin D, in which case a product like Pro D3 1000 IU would be suitable.
The higher strength doses that are prescribed to treat severe deficiencies will need to take into account just how severe your vitamin D levels are. One of the most commonly prescribed products is Pro D3 20,000 IU, but be sure to talk to our clinician to make sure you’re getting the right dose.
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 and the immune system. Journal of investigative medicine: the official publication of the American Federation for Clinical Research, [online] 59(6), pp.881–6.
Vitamin d deficiency - an ignored epidemic. International journal of health sciences, [online] 4(1), pp.V–VI.
Maintenance Dose of Vitamin D: How Much Is Enough? Journal of Bone Metabolism, [online] 25(3), p.161.
Comparison of vitamin D2 and vitamin D3 supplementation in raising serum 25-hydroxyvitamin D status: a systematic review and meta-analysis. The American journal of Clinical Nutrition. vol. 95, no. 6. pp. 1357-1364.
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.
Quantity | Starting from |
---|---|
30 Capsule(s) | £29.95 |
90 Capsule(s) | £43.95 Save £45.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £27.95 |
90 Capsule(s) | £38.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £32.95 |
90 Capsule(s) | £52.95 Save £45.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £30.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Tablets | £26.95 |
90 Tablets | £33.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £32.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Tablets | £25.95 |
90 Tablets | £34.95 Save £42.90 |
Quantity | Starting from |
---|---|
30 Tablets | £25.95 |
90 Tablets | £29.95 Save £47.90 |
Quantity | Starting from |
---|---|
30 Capsules | £25.95 |
90 Capsules | £29.95 Save £47.90 |
Quantity | Starting from |
---|---|
30 Tablet(s) | £26.95 |
90 Tablet(s) | £37.95 Save £42.90 |
Quantity | Starting from |
---|---|
30 Capsules | £27.95 |
90 Capsules | £38.95 Save £44.90 |
Quantity | Starting from |
---|---|
28 Capsule(s) | £25.95 |
56 Capsule(s) | £32.95 Save £18.95 |
84 Capsule(s) | £38.95 Save £38.90 |
Quantity | Starting from |
---|---|
100 Capsule(s) | £27.95 |
Quantity | Starting from |
---|---|
28 Tablet(s) | £27.95 |
84 Tablet(s) | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsule(s) | £26.95 |
90 Capsule(s) | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
28 Capsules | £28.95 |
84 Capsules | £44.95 Save £41.90 |
Quantity | Starting from |
---|---|
28 Tablets | £26.95 |
84 Tablets | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
28 Tablets | £27.95 |
84 Tablets | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
28 Capsules | £27.95 |
84 Capsules | £36.95 Save £46.90 |
Quantity | Starting from |
---|---|
30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
Quantity | Starting from |
---|---|
30 Capsules | £26.95 |
90 Capsules | £35.95 Save £44.90 |
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.
Fast, slick service. Very easy to amend subscription when required.
Arrived second day coz they used royal mail instead of DPD.
All nice
All good.
Great service
Express service
Our average rating based on 16185 reviews.
Vitamin D: Here are some other options.
The sunshine vitamin in a capsule. Provides you with the recommended daily amount (RDA).
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-free, halal and vegetarian friendly capsule available as a maintenance or treatment dose.
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.
The all-rounder. Halal, kosher and veggie-friendly, gluten and lactose free - in a range of doses.
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.