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High Strength Vitamin D3 Tablets - 4000iu

Premium Natural Source Vitamin D3 - the form most readily absorbed by the body

(70 reviews)9810020
Buy High Strength Vitamin D3 Tablets - 4000iu
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  • Super strength 1 a day tablet
  • Helps build strong bones and teeth
  • Ideal strength to quickly correct deficiency
  • 2000% Nutrient Reference Value

Supplement Description

Our Vitamin D3 4000iu is the optimum level recommended by nutritionists to quickly correct deficiency. Vitamin D supplementation can play an important role in correcting Vitamin D deficiency to ensure the maintenance of adequate levels in the body.

Vitamin D plays a number of crucial roles in the body including providing support for immune health, muscle health and strong bones and teeth. Vitamin D can be obtained through food sources such as eggs, fortified cereals and oily fish, but is predominantly synthesised in the skin through exposure to sunlight - hence why it is often as the 'sunshine vitamin'.

Most healthy adults should theoretically be able to get enough Vitamin D from being outside in the sun, however Vitamin D deficiency is very common throughout the UK. This is as a result of a low level of exposure to sunlight, making Vitamin D synthesis almost impossible during the winter.

High strength, natural form tablet

Our 4000iu high strength Vitamin D supplement provides 100µg (2000% Nutrient Reference Value) in an 8mm round, odourless tablet with no coating. We use a high quality natural form of Vitamin D, Cholecalciferol (Vitamin D3) in this supplement - the form of Vitamin D most readily absorbed by the body. Our manufacturing process gives us a highly concentrated form of Vitamin D3 which offers 99% purity and unbeatable quality.

Recommended as a food supplement by the FSA

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

People 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

Vitamin D and rickets in children

Vitamin D is crucial for the maintenance of health and strong bones, a deficiency in Vitamin D can cause rickets in young children which is a weakening and softening of bones which can lead to bone deformities. After World War II instances of rickets in the UK was in very small numbers due to the British government introducing cod liver oil as a supplement - this is a great food source of Vitamin D. However between 2003 and 2013 the NHS reported a 430% increase in cases of rickets and it is becoming an increasing issue.  

Nutritional Information


One tablet typically provides: 
Vitamin D3 (4000iu) 100µg 2000% NRV

NRV means Nutrient Reference Value

Allergen Advice

Contains no allergens as listed in Food Labelling Regulations (1996) Schedule AA1
Free from Salt & Sugar
Contains no Artificial Colours, Flavours or Preservatives
Suitable for vegetarians

Cautions / Possible Side Effects

Keep out of reach of children.

List of Ingredients

Ingredients (in weight order): Dibasic Calcium Phosphate, Microcrystalline Cellulose, Vitamin D3 Preparation (Sucrose, Modified Starch, Maltodextrin, Cholecalciferol), Stearic Acid, Magnesium Stearate, Silicon Dioxide

Dosage / Suggested Intake

Take one tablet per day with food. 

Tablet Size

8mm Round tablet

Legal Category

Food Supplement

Customer Reviews for High Strength Vitamin D3 4000iu

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 - 70 customers have independently reviewed and recommend High Strength Vitamin D3 from 70 reviews (showing latest 50 reviews)
Review Date
Review Details
Service Rating: a quick response
Product: Only just stared taking it
Excellent service .
Service Rating: Quick. Easy. Neat packaging. Will use again.
Product: I like the opportunity to buy high strength
Good service will be continuing to purchase as needed
Service Rating: Use this company often and they are aways very helpful, professional and deliver products quickly.
Product: I take Vitamin D3 for medical reasons. The tablets themselves, whilst having a small circumference, are fairly deep so they are not that easy to get down
Fast,clean and simple
Service Rating: Excellent item, easy to swallow, no nasty taste left (as I have had with previous vitamin pills) would highly recommend.
Product: Excellent product, good value, easy to swallow.
Delivery was very quick. I like the no frill packages of each vitamin.
Service Rating: Excellent website - Good quality vitamins at reasonable prices, with spedy delivery.

Highly recommended
Product: Have only just started taking them but if the result is a reduction in the amount of coughs and colds, then I will be extremely pleased.
Arrived very quickly and I am very pleased with the vitamins. I will be ordering from Just Vitamins again
Great service fast delivery
Service Rating: Excellent - speedy delivery, simple online transaction.
Product: I've been using D3 tablets daily for over a year and believe that they are beneficial, especially during the low level of sunlight throughout the winter months.
Prompt delivery, well packaged, great value
Service Rating: Always a good service and product from Just Vitamins.
Product: Good price for this strength.
Service Rating: Service was as it should be - reliable, prompt, and efficient
Product: I believe that the product is of good quality and well packaged and presented in an attractive manner
Vit d is great. I have no idea why everyone in the UK isn't on it.
Perfect Service as allways!
Great product and service many thanks!!!
Service Rating: Great Price - Quality Vitamins - Fast Service. Always First Class Service.
Product: Excellent Quality at an affordable Price
Service Rating: Because they are really good value for money.
Product: Again great value. Always deliver quickly.
Great price and arrived quickly
The service was excellent, I definitely like the vitamins.
Excellent service
Where I head for all my vitamin and supplement purchures orders arrive promptly
Service Rating: Very good. Would use again. Good prices and delivery was quick.
Product: Started using these so too early to say but as it's winter and lack of sunshine then I hope for results soon
Service Rating: Great products, good price. Very fast delivery
Product: No idea if these are good or not but recommended by GP to take therefor medical reasons. Not the easiest to get down as they are round, small in circumference but quite deep & very compact whereas previous ones I have had are bigger in size but the oblong shape and fact they are soft made those easier to get down.
Perfect transaction shopping process.
nice package have to be aware not to take on empty tum
Efficient and prompt delivery with competitive prices
As always service "1st rate "
Product Vitamin D3
This is the 1st time I've used them I'll let you know when the sun starts to shine.
Service Rating: Always great service. Buy from them on a regular basis
Product: As usual a superior quality product at a reasonable price
Service Rating: Swift delivery
Product: I've only been using them for a couple of weeks and I'm unsure if they are helping me yet
Service Rating: Easy to order online, great value and fast delivery. Would recommend this company.
Product: First time I have used the new higher strength tablet from Just Vitamins - anticipating good results in assisting with my sebo-psoriasis condition.
very speedy service
I only ordre my vitamins from Just Vitamins, great price, fast og good quallity
Service Rating: Delivered very quickly
Product: Packaging was surprising but product as expected
The product information that Just Vitamins makes available on their website allows me to make an informed choice about my purchases. This is important to me as a vegetarian with MS.
Service Rating: Goods are delivered quickly, an efficient service. Consistent good quality.
Product: Always good quality products.
Very happy with the service I received. Excellent prices, friendly and polite customer service agents. Dispatch and Delivery was very quick too. Would recommend and buy from again.
Half my order didn't arrive, I called up and was told I needed to wait for it. This was disappointing as I ordered it because I needed it asap. I waited, I called Royal Mail to no avail. Nothing. Called back Just Vitamins again and spoke to another lady who helped me receive another batch. Thanks to her I am happy now. Great value. A little disappointed with the waiting bit.
Service Rating: It's good high strength tablets.
Product: It's good high strength's useful who has vitamin D deficiency.
have been using them for a long time and are always reliable
Service Rating: Excellent service, speedy delivery, great prices
Product: Brilliant can't fined this strength anywhere else
Service Rating: to order them was a simple process and delivered within 2 working days
Product: I think they are doing me good after the doctor prescribed me to have high dosage due to a low vitamin D deficiency
Service Rating: it does what it says on the website
Product: have been taking these for a couple of years- not really sure if they work but I believe in them therefore I am happy
Not received my order
Feedback Response: We're sorry to hear you haven't received your goods so far.  Our Customer Services team will contact you directly by email.
Service Rating: I've bought from them twice now & each time I'm happy with the products & service
Product: Small packets 60 in each, will buy more next time
Excellent, highly recommended
Quick and efficient.
Service Rating: Same as always an Excellent service all round, never been anything different ...
Product: Great for during the winter months when the sun don't shine ...