Food supplement

*Disclaimer: The effects of the product may vary between individuals and could differ from those described on the website.


Get the best health tips, nutritional advice and delicious recipes in one hand e-book!

ALL IN A DAY Vitamin D3 4000 IU

Get the sunshine vitamin that’s crucial for immune system during the season of flus and colds. Getting enough vitamin D is the smartest thing you can do this winter!

High-potency formula with 4000 I.U. (100 μg) of vitamin D3 in easy-to-swallow capsules with no artificial colouring. 30-day supply!

  • High-potency, high-dose formula with 4000 IU (100 μg of vitamin D3)

  • Small, easy-to-swallow capsules

  • No artificial colourings

  • 30-day supply

  • Produced with 15 years of expertise in supplement development and production

  • 1.7 million of Sensilab customers worldwide

  • The vitamin D content is verified by the independent laboratory ChemProf

Contents: 1x ALL IN A DAY Vitamin D3 4000 IU 30 capsules/30 days

Sufficient for 30 days

£0.43 / Capsule

-54% discount
Special price £5.90 Regular price £12.90

Choose your package:

Tip: Save an additional 10% with a subscription

One-time purchase
(Receive a 30 - day supply)
54% discount
Subscribe & save even more
(Receive a 30-day supply every month.)
Additional 10% off
Out of stock

People all over the world love ALL IN A DAY Vitamin D3!

Get the sunshine vitamin that’s crucial for immune system!

Getting enough vitamin D is the smartest thing you can do this winter

What if I don't get enough vitamin D?

While it’s not always obvious that you’re lacking vitamin D, you might notice:

  • getting sick often (colds, flus)

  • feeling tired and low on energy

  • hair falling out more than usual

  • feel down for no reason

  • having aches in your bones and muscles

High-potency formula with 4000 I.U.of vitamin D3

Small, easy-to-swallow capsules with no artificial colouring in 30-day supply!

Vitamin D plays many crucial roles in your body

Boost immune system 

Vitamin D helps your innate and adaptive immune responses.

Help maintain muscle function

People with BMI of 25 or higher are more prone to vitamin D deficiency because fat cells tend to act as reservoir for Vitamin D.

Support normal cell division

It’s also an important vitamin that’s involved in many bodily processes, like cell division.

Upkeep density of bones and teeth

The older you get, the harder it is for the skin to synthesise vitamin D.

Better absorption of calcium 

Contributes to normal absorption and utilisation of calcium and phosphorus.

Why should you supplement?

When you can't find the sunshine, be the sunshine!

Sunscreen can diminish vitamin D3 production by up to 95%! This makes vitamin D supplements a very good idea, all year round.

Vitamin D helps your innate and adaptive immune responsesThese are both crucial when your body is either trying to prevent an infection or fight an existing one.

In winter days we all need to take extra precautions for our immune system to be in top shape, so it’s a good idea to ensure sufficient vitamin D intake by taking a high quality supplement.

After menopause, it’s important to take steps to support bone health – taking a vitamin D is one of those steps.

Who benefits from D3 supplementation the most?

We all do! Over 60% of European population doesn’t have sufficient levels of vitamin D in the blood, and it’s especially beneficial for:

Quality. Safety. Expertise.

We have over 1.7 million happy customers worldwide and are present in over 40 countries across Europe. Thus, it’s our mission and responsibility to design and manufacture products using the highest-quality, effective, clinically tested and natural active ingredients. We follow the highest pharmaceutical GMP and HACCP standards at our state-of-the-art production facilities.

Active ingredients

ALL IN A DAY Vitamin D3 4000 IU

Packaging (1 unit)30 capsules
Daily dose1 capsule
Net weight (1 unit)14 g

Ingredientsin 1 capsule%NRV*
Vitamin D3100 μg (4000 IU)2000

*NRV = nutrient reference value

How to use

The recommended daily intake is 1 capsule.

1 capsule

After a meal

INGREDIENTS (in 1 capsule)

Bulking agent: acacia gum, cholecalciferol (vitamin D3 100 µg (4000 IU) – 2000% NRV*), anti-caking agent: magnesium salts of fatty acids, capsules: hydroxypropyl methyl cellulose. *NRV = nutrient reference values


The recommended (also maximum) daily intake is 1 capsule with a glass of water after a meal.


Recommended daily intake should not be exceeded. Food supplement should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. A diverse and balanced diet and a healthy lifestyle are important.


If you are hypersensitive or allergic to any of the ingredients of this product, use medication, are pregnant or breastfeeding, consult your doctor before use.


Keep out of reach of children! Store in a dark and dry place at a temperature below 25°C.