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Vitamin D3 1,000iu

1,000iu natural source Vitamin D3 to support immunity, muscles & bones. Read full description
120 tablets
(9p per tablet)
" A go to vitamin D supplement for those with suboptimal levels, or to supplement during the winter months "
Wendy Martinson
Registered Dietitian & Sports Nutritionist
Key features
  • ‘Body ready’ vitamin D3
  • 25mcg (1,000iu’) Vitamin D3
  • Easy−swallow tablets
  • Informed Sport accredited
  • Gelatin freeGelatin free
  • For vegetariansFor vegetarians


    4.6 / 5

    Independent feedback based on 108 verified reviews.

    5 stars 84
    4 stars 14
    3 stars 5
    2 stars 0
    1 star 5

    The views expressed in these reviews are the personal opinion of Healthspan customers. Healthspan does not endorse these views, nor should they be regarded as health claims or medical advice.

    See all Reviews


    What is Vitamin D3?

    Considered an essential vitamin, Vitamin D has a range of proven health benefits, such as providing support for bones, teeth, muscles and the immune system. 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. Vitamin D3 supplementation can play an important role in correcting vitamin D deficiency to ensure the maintenance of adequate to optimal levels.

    Why is ours better?

    Each vitamin D3 tablet contains our experts' recommended level of 25µg (1,000iu’) of vitamin D3 in its natural form. Vitamin D3 is the form that is made in the human body and therefore the form that our experts insist on using. The result of the extraction and purification process used results in a highly concentrated form of vitamin D3 which offers 99% purity and unparalleled quality.

    A range you can trust

    This product has undergone rigorous testing by LGC’s world−class sports anti−doping laboratory, Sport and Specialised Analytical Services, for a wide range of substances banned by the World Anti−Doping Agency (WADA’) to provide the highest levels of assurance possible for athletes.


    Made in the UK.

    Product Information

    Please click a heading below to open the relevant product information:

    Information table

    ActivesPer tablet% NRV
    Vitamin D325mcg500
    equivalent to1,000iu
    NRV = Nutrient Reference Value mcg = micrograms iu
    = international units

    Ingredients and potential allergens

    Bulking Agent: Dicalcium Phosphate, Bulking Agent: Microcrystalline Cellulose, Vitamin D3 Prep. (Maltodextrin, Starch, Sucrose, Cholecalciferol’), Coating (Hypromellose, Polydextrose, Safflower, Calcium Carbonate, Talc, Medium Chain Triglycerides’), Magnesium Stearate.

    Directions of use

    Swallow one tablet daily with water, or the dosage advised by your nutritionist.

    Warnings and additional information

    If you are taking any prescribed medication or have any medical conditions always consult your doctor or pharmacist before taking vitamins or supplements.

    Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

    Store in a cool dry place, in original packaging, out of sight and reach of young children.

    If you experience an adverse reaction, stop taking the supplement and seek medical advice.

    Made in the UK for Healthspan Ltd PO Box 64 Guernsey GY1 3BT


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    Batch Certificates

    If the Informed Sport batch certificate you are looking for is not in the list below, please email

    Batch Certificate
    Batch Certificate
    Informed Sport Certificate - Batch Number: 108350
    Batch Certificate
    Informed Sport Certificate - Batch Number: 118385
    Batch Certificate
    Informed Sport Certificate - Batch Number: 125170

    *Subscription yearly saving calculated based on recommended frequency plus free delivery savings.