Immune System Immune System

Karin

10-05-2025

“Great that there are also vitamin D3 capsules made from algae! Better for me and great for nature!”

Vitamin D3

Vitamin D3

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15.25

Your daily vitamin D3 from a responsible source.

  • Support the immune system
  • Good for muscles & bones
  • Plant-based vitamin D3 from algae

1 MONTH FREE

Choose 6 months of vitamin D3 and get 1 month free, plus a free storage jar worth €10.

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Karin

10-05-2025

“Great that there are also vitamin D3 capsules made from algae! Better for me and great for nature!”

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  • Order before 23:00, shipped the same business day
  • Free shipping from Β£50
71% of our regular customers chose a subscription right away (up to 24% cheaper per month & incl. free storage jar)

Vitamin D3 is a plant-based capsule containing 20 Β΅g of vitamin D3 from algae. An easy way to supplement your daily vitamin D, especially on days when you don't get much sunlight. It can help with:

Immune system:Β vitamin D contributes to the normal functioning of the immune system.

Muscles:Β vitamin D contributes to the maintenance of normal muscle function.

Bones:Β vitamin D contributes to the maintenance of normal bones.

Teeth:Β vitamin D contributes to the maintenance of normal teeth.

1 softgel daily during or after a meal

Ingredients

Oil from the microalga Schizochytrium sp., vitamin D3 from algae, antioxidants: mixed tocopherols, sunflower lecithin, rosemary extract. Capsule: modified corn starch, glycerol, carrageenan, sodium carbonate

Nutrition

Nutrient Amount % RI
Vitamin D3 20 Β΅g 200
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Product details

Vitamin D3

Support your immune system with vitamin D3 from algae

Vitamin D3 is a fat-soluble vitamin that your body naturally produces through sunlight. Since many people don’t get enough during the darker months, plnktn vitamin D3 can be a valuable addition to your daily routine. It contributes to the normal functioning of the immune system, supports muscle function and helps maintain strong bones.

Comparison

Not your standard vitamin D

Most vitamin D3 is made from lanolin, the fat from sheep's wool, and then goes through multiple chemical processes. Our vitamin D3 comes directly from algae: the same molecule, without animals and without chemical detours.

D3 from algae
D3 from wool grease
Vitamin D3, the form from sunlight
Without animal-derived ingredients
Without chemical agents
100% plant-based

What is vitamin D3 good for?

Vitamin D is a fat-soluble vitamin that the body can produce itself when exposed to sunlight. It is important for your immune system, muscles, and bones.Β 

A vitamin D3 deficiency is more common:

  • if you have darker skin
  • if you are not outdoors every day between 11 a.m. and 3 p.m.
  • in pregnant women
  • in women with light skin aged 50 and over
  • in men with light skin aged 70 and over
  • in children up to and including 3 years of age

A deficiency occurs more frequently, particularly during the winter months. Do you spend a lot of time indoors? And are you unsure whether you are getting enough vitamin D3 from the sun or your diet? Then a supplement is a solution to keep your vitamin D3 levels on track.

What makes plnktn's vitamin D3 unique?

Our vitamin D3 comes fromΒ algaeΒ and is therefore aΒ 100% plant-based alternativeΒ to many other vitamin D3 supplements. These are often made fromΒ lanolin: sheep's wool grease.

In addition, we combineΒ 20 Β΅g of vitamin D3 with 75 Β΅g of vitamin K2. Vitamin D supports the absorption of calcium, and vitamins D and K contribute to the maintenance of strong bones.

This way, you get vitamin D3 from a plant-based source, combined with K2 in a single capsule.

How much vitamin D3 do I need per day?

The recommended daily allowance (RDA) is 10 mcg per day.Β 

When is the best time to take vitamin D3?

We recommend 1 capsule per day. Vitamin D3 is best taken with a meal, as it is a fat-soluble vitamin.

Is vitamin D3 free of allergens?

Yes, it is free of allergens.

Is vitamin D3 safe to take during pregnancy/breastfeeding?

Yes, it is safe to take during pregnancy and while breastfeeding.Β 

What are the ingredients of your vitamin D3?

MCT oil, vitamin K2 (menaquinone-7), vitamin D3 from algae. Capsule: glycerol, modified pea starch, carrageenan.

What is the difference between vitamin D and D3?

Vitamin D is the umbrella term. D3 is the form that the body best recognizes, absorbs, and therefore uses.

How do I know if I have a vitamin D3 deficiency?

A deficiency is not always immediately noticeable. Fatigue, listlessness, or getting sick more often can be signs. If you are in doubt, a test through your GP can provide clarity.

Is plant-based vitamin D3 as effective as animal-derived D3?

Yes. Vitamin D3 from algae has the same effect.Β 

For those who want to grow

Our athletes rely on plnktn to perform at their peak – for the long term.

Pippa van Iersel

Two-time Dutch kitesurfing champion

Douwe Macare

Two-time Dutch skateboarding champion

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