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Super Strength Vitamin D3 Tablets - 4000iu

Premium Natural Source Vitamin D3 - helping to maintain a healthy immune system

596 reviews9610020
Only 10.4p per tablet
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Only 8.6p per tablet
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Key features

  • Super strength 1 a day tablet
  • Helps build strong bones and teeth
  • Ideal strength to quickly correct deficiency
  • 2000% Nutrient Reference Value
Super Strength Vitamin D3 4000iu tablet view
Tablet Size
8mm Round tablet
  • Description
  • Product Information
  • Feefo Reviews Reviews

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 referred to as the 'sunshine vitamin'.

Most healthy adults should theoretically be able to get enough Vitamin D from being outside in the sunshine, 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 were dramatically fewer 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, an alarming statistic highlighting a growing health problem.  

Nutritional Information

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

NRV = Nutrient Reference Value, µg = micrograms, iu = international units

Allergen Advice
Any allergens are highlighted in bold in the ingredients list.
List of Ingredients
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. 
Legal Category
Food Supplement


Customer Reviews for Super 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 9.6 / 10 - 596 customers have independently reviewed and recommend Super Strength Vitamin D3 from 596 reviews (showing latest 25 reviews)
Review Date
Review Details
Service rating: Fast delivery, great product. Will definately order again in the future.
Product: Working from home and getting a little older so i wanted to include more of this vitamin in my diet.
Service rating: The delivery is always slow compared to other companies who offer free postage system (if you choose not to pay postage that is) although the packaging is great.
Product: Husband taking this as Hospital Consultant said he was low in this vitamin (according to his blood test)
Service rating: I think their service is very good. Everything I have had from them has been delivered quickly and safely and I can highly recommend the products I have used, such as Vit D, Osteo4, and others. Their site is also very helpful and easy to use.
Product: I take Vit D like most other people in the UK due partly to a lack of sunshine
Efficient order and delivery. Like the packaging also.
Service rating: Excellent would thoroughly recommend
They go above and beyond customer service.
Speedy and efficient service.
Product: Decided to buy during lockdown and they have made such a difference to my hair and nails.
Service rating: Excellent packaging. Very quick delivery.
Prices really good.
Have been buying from Just Vitamins for sometime now.
Product: I was advised to take Vitamin D by a consultant.
Best quality for the money.
The delivery is really quick and excellent packaging.
Speedy service. Good quality and just what I was looking for.
Service rating: Excellent choice of products, keen pricing & quick delivery. Worth the five stars.
Product: Good price & easy to take.
Service rating: Always cu1st class
Product: VItamin D3 vit c & zinc, protection against COVID
Service rating: Just vitz for 2yrs now, always arrived on time, great products and very reliable servic and also customer care and response is brilliant
Product: Great product i know have my entire family of 16 with just vits
I have MS and my skin is thin on my forearms perhaps it is age but I keep getting horrible bruising
Service rating: most certainly YES
Product: as usual, no complaints. Delivered on time, Good packaging.
Service is always great very efficient good packaging great vits
Service rating: Always very efficient, on time and correct order in fact in all the years that I have been ordering from Just Vatamins there has never been an error
Product: These are for my house bound wife to replace lack of sunlight
Service rating: The website is easy to use and products arrived quickly thank you.
Product: Vitamins are pretty reliable, we've not had any colds since taking them so that must be a good benefit! Thank you.
Easy to buy. Good info. Brilliant way it's packed too. Letter box friendly.
Quality products,qulity service.Thank you!
I recommend this company because products are great service best ever deliver so speedy cannot find any fault brilliant service
Service rating: I have dealt with JV for a number of years. Absolutely fantastic service,
Excellent quality. Would recommend..
Thank you.
Product: I trust this strength no problems
Service rating: I received order in normal way. On time. Excellent service.
Yes I would recommend Just Vitamins
Product: I take D3 as lack of sunshine and I don’t spend a lot of time outdoors.
No problems, arrived ok, started use
Service rating: The service is always good & quick never had a complaint with anything ordered
Product: Good price for the product
Service rating: A very reliable company. Good quality vitamins for a good price and excellent delivery service.
Product: Good high dose to support skeleton and immune system.
Service rating: Just Vitamins...quick service, always reliable and always quality products. We are happy customers since several years.
Product: We wouldn't do without this form of D3. Recently had husband's blood worked checked also for minerals, vitamins and specifically Vit. D. Those blood levels now very good.

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