im not really sure how to check or know, but what i do know is that i took a blood test recently and my rating for vitamin D came back excellent. I would encourage you to watch the youtube videos on vitamin D by Dr John Campbell. I actually double dose on these (8000IU) because of the new studies that are coming out thick and fast. Hope this helps.

Strength too high? 19-70 yr olds recommended only 600 iu daily? so why so strong???

You can take much higher dose each day without doing any harm i have been taking 4000 iu for three years.

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Vitamin D3 4000IU - 1+ Year Supply - 400 Tablets - Easy to Swallow 6mm Micro Vitamin D Tablets - Gentle Cholecalciferol Form - Vegetarian-Friendly VIT D Supplement - 1 per Day - Made in the UK

Product ID: 201210384

Details

Brand
WeightWorld
Diet type
Vegetarian
Flavour
Unflavoured
Item form
Tablet
Primary supplement type
Vitamin D3

🌱Vegetarian & gluten-free formula

💊400 tablets - 14+ months supply

☀️4000 IU potent daily dose

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€ 19.36

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

☀️ Elevate your daily glow with 4000 IU of pure sunshine power!

CLEAN CONSCIOUS - Vegetarian-friendly, gluten-free, and free from magnesium stearate
SUNSHINE IN A TABLET - High-potency 4000 IU cholecalciferol for superior bioavailability
UK QUALITY ASSURANCE - Manufactured under GMP standards in the UK for trusted purity
IMMUNE BONE POWERHOUSE - Clinically backed to support immune function, bones, muscles, and teeth
YEAR LONG WELLNESS BOOST - 400 easy-to-swallow micro tablets for uninterrupted daily support

This Vitamin D3 supplement delivers a potent 4000 IU dose per tablet in a gentle, bioavailable cholecalciferol form. With 400 micro 6mm tablets per bottle, it offers a convenient 14+ month supply designed for busy professionals seeking reliable immune, bone, muscle, and dental support. Vegetarian and gluten-free, made in the UK under strict GMP standards, it’s the smart, clean choice for maintaining optimal vitamin D levels year-round.

Specifications

ASIN	B086V74KKR
ASIN	B086V74KKR
Age Range Description	Adult
Benefits	Immune Support
Best Sellers Rank	213 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 6 in Vitamin D
Brand Name	WeightWorld
Container Type	Bottle
Country Of Origin	United Kingdom
Country of origin	United Kingdom
Customer Reviews	4.6 4.6 out of 5 stars (23,885)
Customer reviews	4.6 4.6 out of 5 stars (23,885)
Diet Type	Vegetarian
Dosage Form	Tablet
Flavour	Unflavoured
Item Dimensions	5 x 5 x 10.4 centimetres
Item Form	Tablet
Item Weight	58 Grams
Manufacturer	Comfort Click Ltd
Manufacturer	Comfort Click Ltd
Manufacturer Part Number	5056128124994
Manufacturer reference	5056128124994
Material Type Free	Gluten Free
Model Name	Vitamin D3 4000 IU
Number of Items	1
Primary Supplement Type	Vitamin D3
Product Dimensions	5.01 x 5.01 x 10.4 cm; 58 g
Special Ingredients	Contains anti-caking agents
Specific Uses For Product	Immune,Immune System
Unit Count	400 count

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