Vitamin D3 4,000 IU
High-strength vitamin D3 (cholecalciferol) – 100 µg (4,000 IU), 2,000% NRV per tablet – one small vegetarian tablet a day; 365 tablets in a resealable pouch.
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Image 1 of 7- 4,000 IUVitamin D3 per tablet
- 2,000%NRV per tablet
- 1 a dayHigher strength
- 365 tabletsVegetarian · from lanolin
vitamin D
Why is vitamin D important?
Vitamin D is a fat-soluble vitamin the body makes in skin exposed to sunlight, so dietary intake matters when sun exposure is limited.This is the higher-strength tablet, providing 100 µg (4,000 IU) of vitamin D3 as cholecalciferol – the same form the body makes from sunlight. Vitamin D contributes to the normal function of the immune system and to the maintenance of normal bones, teeth and muscle function. As 100 µg is the daily upper limit for adults, it is not recommended alongside other vitamin D supplements without consulting a doctor.
Science-Backed Benefits
Vitamin D3 (cholecalciferol) 100 µg (4,000 IU) per tablet
365 tablets — extended supply
Vitamin D contributes to the normal function of the immune system
Vitamin D contributes to the maintenance of normal bones and muscle function
Contains 100 µg vitamin D — not recommended alongside other vitamin D supplements without consulting a doctor
Higher-strength 4,000 IU
100 µg (4,000 IU) of vitamin D3 per tablet – 2,000% of the Nutrient Reference Value – for adults who want a higher daily dose. Not recommended alongside other vitamin D supplements without consulting a doctor.
D3 as cholecalciferol
Cholecalciferol (D3) is the form of vitamin D the body makes in skin from sunlight, distinct from plant-derived D2. Sourced from lanolin, so suitable for vegetarians (not vegans).
365 tablets in a pouch
365 small, easy-to-swallow tablets in a resealable pouch. Made in the United Kingdom under GMP certification and independently laboratory tested.
Quality and certifications
UK Made
Trusted Nordic Quality
Vegetarian- GMO-Free
- Gluten-Free
Product details
Manufactured in the United Kingdom under GMP certification and independently laboratory tested. Vegetarian (vitamin D3 from lanolin) and free from gluten, lactose, soya, nuts and sugar; non-GMO. No artificial colours, no preservatives, no unnecessary fillers.
365 small, easy-to-swallow tablets in a resealable pouch. Take one tablet daily with water, preferably with a meal. Contains 100 µg vitamin D — not recommended alongside other vitamin D supplements without consulting a doctor.
From 4 HIM & HER — trusted by customers across 13 countries since 2009.
Vitamin D contributes to the normal function of the immune system.
Who is it for?
A higher-strength vitamin D supplement for adults who want a larger daily dose of vitamin D3 in a small tablet.
How and when to take it
Take one tablet daily with water, preferably with a meal (vitamin D is fat-soluble). Do not exceed the recommended daily dose. Contains 100 µg vitamin D – not recommended alongside other vitamin D supplements without consulting a doctor.
When will I notice the effects?
Vitamin D builds up in the body over time. As a food supplement it is intended for ongoing daily use rather than as a single dose.
What are the ingredients & benefits?
- Vitamin D contributes to the normal function of the immune system.
- Vitamin D contributes to the maintenance of normal bones and teeth.
- Vitamin D contributes to the maintenance of normal muscle function.
- Vitamin D contributes to normal absorption and utilisation of calcium and phosphorus.
- Vitamin D contributes to normal blood calcium levels.
Nutritional information
| Nutrient | Per serving | % NRV |
|---|---|---|
| Vitamin D3 (cholecalciferol) | 100 µg | 2,000% |
NRV = Nutrient reference value.
Why 4 HIM & HER?
- Higher-strength 4,000 IU (100 µg) per tablet
- D3 as cholecalciferol – the form made from sunlight
- Made in the UK to GMP standards
- Independently laboratory tested
Frequently asked questions
How do I take the 4,000 IU strength?
One tablet daily with a meal. Because 100 µg is the daily upper limit for adults, do not take it alongside other vitamin D supplements without consulting a doctor.
What is the difference between D3 and D2?
D3 (cholecalciferol) is the form of vitamin D the body makes in skin from sunlight, and the form used in most studies at typical supplement doses. D2 (ergocalciferol) is the plant- or yeast-derived form. This product uses D3.
Is it suitable for vegans?
It is suitable for vegetarians but not vegans – the vitamin D3 is cholecalciferol derived from lanolin (the natural oil from sheep’s wool). It is free from gluten, lactose, soya and nuts.
Should I choose 2,000 IU or 4,000 IU?
This is the 4,000 IU (100 µg) strength. We also offer a 2,000 IU (50 µg) strength. Choose whichever suits you, or follow your doctor’s advice.
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