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Vitamin D3 4000IU is a high-strength food supplement providing 4000IU (100 micrograms) of vitamin D3 per tablet in a pack of 60, where vitamin D contributes to the maintenance of normal bones, teeth and muscle function, sold by Ways Pharmacy (UK).
Key facts
| Active nutrient | Vitamin D3 4000IU (100 micrograms) per tablet |
|---|---|
| Format | Tablets, swallowed with water |
| Pack size | 60 tablets (one tablet per daily serving) |
| Authorised claims | Vitamin D "contributes to the maintenance of normal bones, teeth and muscle function", "to the normal function of the immune system" and "to the normal absorption of calcium" (EU/UK Register of Health Claims) |
| Strength note | 4000IU equals 100 micrograms — the upper level the NHS says is unlikely to cause harm for most adults |
| Suitable for | Adults |
| Sold by | Ways Pharmacy, UK (GPhC-registered) |
Who it is for
- Adults who want a higher-strength 4000IU vitamin D3 once a day
- People topping up vitamin D over autumn and winter when sunlight is limited
- Adults with limited sun exposure or who cover most of their skin outdoors
- People supporting normal bones, teeth, muscle function and the immune system
Not suitable for: children without medical advice; do not take alongside other high-dose vitamin D products without advice; during pregnancy, breastfeeding or while taking medication, check with your GP or pharmacist first.
How to use
- Take one tablet a day with water.
- Take consistently as part of your daily routine.
- Do not exceed one tablet a day.
Frequently asked questions
What does vitamin D do?
Under the EU/UK Register of Health Claims, vitamin D contributes to the maintenance of normal bones, teeth and muscle function, to the normal function of the immune system, and to the normal absorption of calcium. Each tablet provides 4000IU (100 micrograms).
What does 4000IU and 100µg mean?
They are two ways of stating the same amount. 4000 International Units (4000IU) of vitamin D3 is equal to 100 micrograms (100µg). This is a higher-strength daily dose.
Is 4000IU a day safe?
The NHS states that taking up to 100 micrograms (4000IU) of vitamin D a day is unlikely to cause harm for most adults. Do not exceed one tablet a day, and do not combine it with other high-dose vitamin D supplements without advice from your pharmacist or GP.
When should I take vitamin D?
Vitamin D can be taken at any time of day, with or without food. Many people in the UK consider a supplement particularly in autumn and winter, when there is less sunlight.
Safety & storage
- Food supplement — not a substitute for a varied, balanced diet and a healthy lifestyle.
- This is a high-strength product (4000IU); do not exceed one tablet a day and do not combine with other high-dose vitamin D without advice.
- Not suitable for children without medical advice.
- If you are pregnant, breastfeeding, taking medication or under medical care, check with your GP or pharmacist before use.
- Keep out of reach of children. Store in a cool, dry place.
References
This product is a food supplement and is not a medicine. It is not intended to diagnose, treat, cure or prevent any disease. Food supplements should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or under medical care, consult your pharmacist or GP before use.
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