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360 Tablet Tub - vitamin d 400 iu
360 Tablet Tub - vitamin d 400 iu

Vitamin D 400iu

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 4 out of 5  | 2 product reviews
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 In Stock
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Vitamin D2


  • For strong bones, teeth and muscles
  • Promotes a healthy immune system
  • Vegan-friendly vitamin D tablets
  • Lowest prices in the UK, guaranteed


Benefits of the ‘sunshine’ vitamin


Vitamin D is needed for the body to absorb calcium and phosphorous, and so plays a vital role in the growth and maintenance of strong bones and teeth. This essential mineral also helps to strengthen the immune system and promotes healthy muscle function, while there is evidence from large-scale clinical trials to suggest that vitamin D may help to reduce the risk of dementia. Because natural food sources of vitamin D are rare, the most effective ways to receive adequate levels are through sunlight exposure and supplements.  


Read more

Vitamin D levels in the UK


Findings from a recent survey suggest that 2 out of 3 adults living in the UK have vitamin D levels considerably lower than advised. To help raise awareness of this issue, the Department of Health has identified ‘at-risk’ groups who are often at an increased risk of deficiency, including adults over the age of 65, pregnant or breastfeeding women, and adults who have limited exposure to sunlight. They advise taking between at least 800iu per day to maintain healthy vitamin D levels throughout the year.


Vegan vitamin D tablets


Our high-strength vitamin D tablets are suitable for vegans and vegetarians, and are Good Manufacturing Practice (GMP) approved to ensure they meet strict standards of quality. The lower 400iu strength 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. If you are concerned about weakening bones or immune system, you may wish to try the higher strength 2000iu or 5000iu tablets. 


E508/E509 VITAMIN D2 400IU:

 Nutritional InformationPer tablet
 Vitamin D2
 NRV = Nutrient Reference Value (previously referrred to as RDA)
 µg = Microgramme, mg = Milligram, IU = International Units

Other Ingredients: Dicalcium Phosphate, Microcrystalline Cellulose, Magnesium Stearate.

Directions: For adults, take one to two tablets daily as a food supplement or as directed by a healthcare professional.


V: Suitable for vegetarians and vegans
Free from artificial additives and preservatives
Lactose free
Wheat free
Fish free
Gluten free
Yeast free


If you are taking any prescription medication, you have a medical condition or you have specific concerns about the suitability of any of our products in relation to these, you should always consult your GP or Pharmacist prior to taking supplements. Pregnant or lactating women should consult a GP before taking supplements. Do not exceed the recommended daily dosage. Keep out of reach of children. Supplements should not be taken as a substitute for a varied diet. Always read the label before use.




UK Mainland


STANDARD: FREE 2-3 day delivery for all online orders.

All orders dispatched to UK addresses will automatically qualify for FREE Standard 2-3 Day Delivery (excluding the day of despatch), regardless of order size. This means you won't be waiting long for your goods to arrive. Order before 12:00pm Monday-Friday to receive goods within 2-3 working days (excluding bank holidays). 


EXPRESS: FREE next-day delivery for orders over £40.

Place your order before 12.00pm Monday-Friday to receive your goods the next-working day (excluding bank holidays). For orders under £40 there is a small £3.50 charge for Express Next Day Delivery.



Europe & Rest of the World

For all European and International orders, delivery charges will vary depending on the total weight and size of the order. As you add products to your basket the delivery charge will automatically update. This service offers all our international customers fair and competitive delivery charges.


Terms & Conditions

Orders must be placed before 12.00pm Monday to Friday (excluding bank holidays) to qualify for our Express Next Day Delivery or Standard 2-3 Day Delivery. These services are currently available for UK addresses only and are subject to stock levels. If an item(s) is out of stock, it will be given priority delivery upon arrival.


  • 13th June 2015 - Linda Varney
    Q: I have trouble swallowing large tablets,can you tell me how large these vitamin d tablets are please
    A: The Vitamin D 400iu are a small 8mm round tablet.
  • 20th September 2014 - Bilbinder Karotna
    Q: I am taking vit D 1000iu at the moment and are about to finish. Will the 2000iu strength be too much for me or can I start taking them? My GP prescribed 1000iu.
    A: If you GP has advised you to take 1000iu tablets we would not recommend to take a higher dosage. As we are not medically trained, we would kindly advise you to confirm any change in dosage with your GP or Pharmacist.
  • 19th February 2014 - James
    Q: Are they suitable for vegans?

    Yes, these Vitamin D 400iu tablets are suitable for vegans and vegetarians.

  • 7th November 2013 - Mr J Smith
    Q: Could you tell me if this contains Soya!?

    This product does not contain Soya

  • 13th August 2012 - Sharon
    Q: Will be starting to take Menapol plus when it arrives can you take it along side your vitamin D 400iu and if so what dosage many thanks

    Yes, you can take Vitamin D 400iu alongside Menapol Plus providing that you do not exceed the dosage instructions for either product. The recommended dosage for Menapol Plus is 1-2 capsules daily, and the dosage for Vitamin D 400iu is 1 tablet daily.

  • 29th May 2012 - e.mc nulty
    Q: what is the normal daily tablet dose?

    We advise you to take 1 tablet on a daily basis.

  • 13th April 2012 - Errol
    Q: Just to clarify, is this product Vitamin d2 or d3?

    These 400iu strength tablets contain Vitamin D2.

  • 20th March 2012 - Arun Kabre
    Q: Is this Vitamin D suitable for vegetarians?

    Yes, this product is suitable for vegetarians and vegans. 

  • 25th November 2011 - Alyson
    Q: Can you take this product while being pregnant?
    A: It's essential to keep vitamin D levels topped up during pregnancy to support the healthy growth of the baby's bones and muscles. However, we would advise that you consult with a GP or pharmacist before supplementing during pregnancy. 
  • 8th November 2011 - Line
    Q: Is the Magnesium Stearate made from animals or plants?

    Our Magnesium Stearate is from vegetable sources.  

  • 14th October 2011 - K.Stevenson
    Q: Is Vitamin D suppliment available in a liduid form as my wife is not able to swallow tablets or can they be chewed.

     Unfortunately, we only supply Vitamin D in tablet form.

  • 27th September 2011 - Mrs Christine Meaney
    Q: I have a condition first diagnosed two years ago which is now termed as hyperparathyroidism secondary to vitamin D deficiency. The vitamin D I have taken has put my system back on track but my consultant wants me to up the dosage from 800iu to 2000iu because of continuing low levels of Vit D. Do you only do the 400iu dosage or is there a stronger one available please to save me having to take 5 tablets a day?

    We also provide super strength Vitamin D3 tablets 2000iu that may be more suitable for your needs.

  • 25th April 2011 - Jo Chipchase
    Q: At the moment i am taking Calceous Chewable tablets, can you advise if you sell Calcium and Vitamin D3 supplements.

    Yes, we supply Calcium and Vitamin D3 tablets in a 500mg/200iu strength.

  • 27th January 2011 - Aimee Astor
    Q: Do you plan on selling vitamin D3?

    Studies show that vitamin D2 is just as effective as D3 when taken as lower strengths such as 400iu. Only when taken at super strengths between 1000iu and 2000iu, is vitamin D3 better absorbed by the body. 

    Following these guidelines, we offer a Vitamin D2 400iu, and a separate Super Strength Vitamin D3 2000iu supplement.

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Please Note: The views expressed below are those of Simply Supplements customers. Simply Supplements does not endorse these views, nor should they be regarded as medical advice.

with your Vitamin D 400iu
  • Maintains healthy bones and muscles
  • Balances electrolytes and energy levels
Only £15.90