FREE, fast UK delivery
Overseas from just £4 per order
Search Supplements & Articles
Your Account
Speedy Quick Re-Order
View your Shopping Basket

Vitamin D3 Tablets - 400iu

1 a day strength as recommended by Government guidelines | 6 months supply

429 reviews9810020
Only 2.7p per tablet
In stock
- Best Price
Only 2.5p per tablet
0 in stock
In Stock

Key features

  • In body favourable D3 form
  • Helps build strong bones and teeth
  • For healthy muscles & good immunity
  • 1 tablet provides 100% NRV
Pregnancy Friendly
Vitamin D3 400iu tablet view
Tablet Size
8mm round tablet
  • Description
  • Product Information
  • Feefo Reviews Reviews

Vitamin D helps to build strong bones and healthy teeth. Commonly known as the sunshine vitamin, Vitamin D is synthesized in the skin following exposure to sunlight. 

Ideal for boosting Vitamin D levels during the winter months

Most healthy adults should be able to get enough Vitamin D from being outside in the sun, unfortunately in the UK in the winter there isn’t much opportunity to get a daily dose of sunshine! This strength tablet is the ideal daily dosage for healthy adults who wish to maintain optimal vitamin D levels and is suitable for children over the age of 5 years old and pregnant women.

Recommended by the Food Standards Agency

The Food Standards Agency recommends that if you are pregnant or breastfeeding you should take a 400iu/ 10µg supplement of Vitamin D each day.

Older people should also consider taking 400iu/10µg of Vitamin D each day. Others who may be at risk from Vitamin D deficiency include people who:
  • are of Asian origin
  • rarely get outdoors   
  • eat no meat or oily fish

If you aren't getting enough Vitamin D, you might be more at risk of some of the harmful effects of too much Vitamin A.

Provides 100% NRV in a small easy swallow tablet

Our 400iu Vitamin D tablet provides 10µg (100% Nutrient Reference Value) in a small easy to swallow tablet. The UK Department of Health recommends that anyone at risk of a Vitamin D deficiency take between 400iu to 800iu per day to maintain healthy Vitamin D levels throughout the year. Read more in the paper produced by the UK Department Of Health on Vitamin D deficiency here.

Premium & All Natural Vitamin D3 Form

We use the premium and all natural form of Vitamin D, Cholecalciferol (Vitamin D3) in this supplement. Also available as higher-strength Vitamin D3 1000iu tablet.

Nutritional Information
One tablet typically provides:
Vitamin D3 400iu / 10µg (200% NRV)
  as Vitamin D3 - Cholecalciferol

NRV = Nutrient Reference Value, µg = micrograms, iu = international units
Allergen Advice
Ingredients containing allergens are highlighted in bold in the ingredients list. 
List of Ingredients
Bulking Agent (Calcium Carbonate prep, with Maltodextrin), Bulking Agent (Microcrystalline Cellulose),  Vitamin D Preparation (Maltodextrin, Starch, Sucrose, Cholecalciferol),  Anti-caking Agents (Magnesium Stearate, Silicon Dioxide),  Coating (Hydroxypropylmethyl Cellulose, Glycerin)
Dosage / Suggested Intake
Swallow one tablet per day with food.
Legal Category
Food Supplement with Vitamin D3


Customer Reviews for Vitamin D3 400iu

The views expressed below are the personal opinion of Just Vitamins customers. Just Vitamins does not endorse these views, nor should they be regarded as health claims or medical advice. All reviews are collected and verified as genuine by a 3rd party called Feefo.

Overall product rating 9.8 / 10 - 429 customers have independently reviewed and recommend Vitamin D3 from 429 reviews (showing latest 25 reviews)
Review Date
Review Details
fast delivery
Service rating: I was impressed by the thought that had been put in to their range of products
B12 in a good strength for absorption via the mouth thus avoiding initial liver processing.
Vit D at a proper strength
Product: Good vitamin D levels are essential for general health and for reducing the severe effects of Covid 19 infection
Service rating: Excellant service all round. Quick delivery with 100% biodegradable packaging !
Product: I started taking these high strength vitamin D tablets last year now and i must say that these completely supress my fatigueness during the day due to my Multiple Sclerosis. An Excellant buy !
Service rating: V efficient service
Product: Good to find lower dose Vit D tabs.
Very efficient service
Service rating: Smooth ordering process, swift delivery, perfect product.
Product: As per the recommendation linked to Covid-19 I started taking this supplement and it seems to do what it's designed to do.
My order turned up promptly and was as requested
Service rating: Excellent, efficient service, flat packaging so you don't need to be in to get the delivery. I ordered vit d3.
Product: Taking the supplements as advised by Public Health England.
Quick device , economic package, would use again
Great products reasonably priced
Service rating: delivered on time.
Product: delivered on time. i've noting more to add
Service rating: Excellent service. Very prompt. Good packaging. Easy to order.
Product: Have been taking this throughout the winter months - continuing to add a supplement to the sunshine!
The website was easy and delivery did not take long. Very pleased.
Service rating: the items always arrive within the dates given. simple but effective packaging, well done!
Product: To order these pills is easy, they help keep me fit and healthy. They are easy to take and a pleasant taste.
Service rating: Delivered very fast to UK address. Previously had requested delivery to ROI but Brexit has caused lots problems
Product: Taking this combined with calcium citrate.
Service rating: Fast and efficient. Items received in goods order. Simple process.
Product: Right strength for me and a good price.
Excellent, fast service
Service rating: Have bought from Just Vitamins before and will continue to do so. Prompt service, good prices and eco friendly packaging.
Product: Good product. Taking after we read the benefits during COVID 19.
Service rating: I would recommend them and I would also buy from them again.
Product: I have a few health issues and I am feeling alot better since taking the product
Service rating: Delivery is quick and fair price
Product: Taking because of lack of vitamin d in winter
Service rating: I have ordered from just vitamins many times, and have always been pleased with my purchases and the speed at which they were delivered. The prices are very reasonable and I will continue to shop on this site in the future.
Product: Due to lockdown and shielding it has been recommended to take a Vitamin D supplement.
Service rating: Easy to order, delivered quickly, good value
Product: As expected, I have no more to say
Service rating: Quick and reliable service
Product: Good price. Fast delivery
Service rating: Good price with quick and easy delivery
Product: My diet provides me with all the vitamins I need, except for vitamin D, which comes mainly through the action of sunshine on our skin. In the winter especially when we stay indoors and cover ourselves we don't get enough of it. After feeling exhausted all the time a few Springs ago, I was diagnosed by my doctor as having low levels of it. I started taking it and felt normal again. I now make sure I take a maintenance dose all year. It's the one vitamin the NHS recommends us taking!
Service rating: Prompt service as always. Will definitely use again
Product: Too early to say whether this is effective

Frequently bought together


We use cookies to help improve your experience of our website and cookies have already been set. To find out more or for advice on removing these cookies, read our Privacy and Cookies Policy.

By closing this message or continuing to use our website, you consent to our use of cookies in accordance with our Cookies Policy.