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Cheapest Vitamin D on iHerb

Ranked by real cost per 1,000 IU of Vitamin D — cheapest value first.

Prices updated Jul 25, 2026 · 25 products · Prices in USD

The priciest option here costs about 22.2× more per 1,000 IU of Vitamin D than the best-value pick Micro Ingredients. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per 1,000 IU
1
Micro Ingredients, Vitamin D3 + K2, 300 Softgels
Micro Ingredients, Vitamin D3 + K2, 300 Softgels
Micro Ingredients
5,000 IU30029.990.020View on iHerb →
2
Paradise Herbs, Earth's Blend®, Vitamin D3, 90 Vegetarian Capsules
Paradise Herbs, Earth's Blend®, Vitamin D3, 90 Vegetarian Capsules
Paradise Herbs
5,000 IU9011.990.027View on iHerb →
3
Zahler, Vitamin D3 & K2, 1 fl oz (30 ml)
Zahler, Vitamin D3 & K2, 1 fl oz (30 ml)
Zahler
1,000 IU44722.720.051View on iHerb →
4
Divine Health, Dr Colbert M.D., Immune Support, 90 Capsules
Divine Health, Dr Colbert M.D., Immune Support, 90 Capsules
Divine Health
5,000 IU4518.220.081View on iHerb →
5
Futurebiotics, Vitamin D3, 250 mcg (10,000 IU), 360 Tablets
Futurebiotics, Vitamin D3, 250 mcg (10,000 IU), 360 Tablets
Futurebiotics
250 mcg3609.990.111View on iHerb →
6
Vitamatic, Vitamin D3, 250 mcg (10,000 IU), 500 Softgels
Vitamatic, Vitamin D3, 250 mcg (10,000 IU), 500 Softgels
Vitamatic
250 mcg50013.990.112View on iHerb →
7
Vitamatic, Vitamin D3, 1,250 mcg (50,000 IU), 60 Vegetable Capsules
Vitamatic, Vitamin D3, 1,250 mcg (50,000 IU), 60 Vegetable Capsules
Vitamatic
1,250 mcg609.990.133View on iHerb →
8
Vitamatic, Sugar Free Vitamin D3, Natural Orange, 50,000 IU, 60 Gummies
Vitamatic, Sugar Free Vitamin D3, Natural Orange, 50,000 IU, 60 Gummies
Vitamatic
1,250 mcg609.990.133View on iHerb →
9
Amazing Nutrition, Daily Multivitamin, 250 Tablets
Amazing Nutrition, Daily Multivitamin, 250 Tablets
Amazing Nutrition
400 IU25014.990.150View on iHerb →
10
Vitamatic, Vitamin D3, 125 mcg (5,000 IU), 500 Softgels
Vitamatic, Vitamin D3, 125 mcg (5,000 IU), 500 Softgels
Vitamatic
125 mcg5009.990.160View on iHerb →
11
Futurebiotics, Vitamin D3, 250 mcg (10,000 IU), 120 Tablets
Futurebiotics, Vitamin D3, 250 mcg (10,000 IU), 120 Tablets
Futurebiotics
250 mcg1204.990.166View on iHerb →
12
Vitamatic, Irish Sea Moss, 180 Vegetarian Capsules
Vitamatic, Irish Sea Moss, 180 Vegetarian Capsules
Vitamatic
1,000 IU9014.990.167View on iHerb →
13
Zahler, Vitamin D3, 1,250 mcg (50,000 IU), 120 Capsules
Zahler, Vitamin D3, 1,250 mcg (50,000 IU), 120 Capsules
Zahler
1,250 mcg12029.220.195View on iHerb →
14
Viva Naturals, Vitamin D3 with Organic Liquid Coconut Oil, 125 mcg (5,000 IU), 360 Softgels
Viva Naturals, Vitamin D3 with Organic Liquid Coconut Oil, 125 mcg (5,000 IU), 360 Softgels
Viva Naturals
125 mcg36010.990.244View on iHerb →
15
Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 720 Softgels
Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 720 Softgels
Doctor's Best
125 mcg72021.990.244View on iHerb →
16
Nutricost, Vitamin D3, 250 mcg (10,000 IU), 240 Softgels
Nutricost, Vitamin D3, 250 mcg (10,000 IU), 240 Softgels
Nutricost
250 mcg24016.950.283View on iHerb →
17
Paradise Herbs, Earth's Blend ®, One Daily Superfood Multi-Vitamin, No Iron, 60 Vegetarian Capsules
Paradise Herbs, Earth's Blend ®, One Daily Superfood Multi-Vitamin, No Iron, 60 Vegetarian Capsules
Paradise Herbs
1,000 IU6017.990.300View on iHerb →
18
Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
Doctor's Best
125 mcg36013.990.311View on iHerb →
19
Vitamatic, Vitamin D3 Gummies, Natural Orange, 250 mcg (10,000 IU), 120 Gummies
Vitamatic, Vitamin D3 Gummies, Natural Orange, 250 mcg (10,000 IU), 120 Gummies
Vitamatic
250 mcg1209.990.333View on iHerb →
20
BioSchwartz, Maximum Strength Vitamin D3, 250 mcg (10,000 IU), 180 Softgels
BioSchwartz, Maximum Strength Vitamin D3, 250 mcg (10,000 IU), 180 Softgels
BioSchwartz
250 mcg18014.990.333View on iHerb →
21
Paradise Herbs, Earth's Blend, One Daily Superfood Multi-Vitamin, No Iron, 30 Vegetarian Capsules
Paradise Herbs, Earth's Blend, One Daily Superfood Multi-Vitamin, No Iron, 30 Vegetarian Capsules
Paradise Herbs
1,000 IU3011.990.400View on iHerb →
22
Eu Natural, My Head!, Feverfew & B Vitamins +, 60 Vegetarian Capsules
Eu Natural, My Head!, Feverfew & B Vitamins +, 60 Vegetarian Capsules
Eu Natural
4,000 IU2031.990.400View on iHerb →
23
NatureWise, Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
NatureWise, Vitamin D3, 125 mcg (5,000 IU), 360 Softgels
NatureWise
125 mcg36018.530.412View on iHerb →
24
Nutricost, Vitamin D3, 125 mcg (5,000 IU), 240 Softgels
Nutricost, Vitamin D3, 125 mcg (5,000 IU), 240 Softgels
Nutricost
125 mcg24012.950.432View on iHerb →
25
Vitamatic, Vitamins A, D, K, 180 Vegetable Capsules
Vitamatic, Vitamins A, D, K, 180 Vegetable Capsules
Vitamatic
250 mcg18019.990.444View on iHerb →

How we rank Vitamin D

Two supplements can list the same dose per serving yet cost very differently once you account for how many servings are in the bottle. We calculate the total nutrient in each container (dose per serving × servings per container), divide the current price by that total, and rank by the resulting cost per unit. Lower is better. Because prices are refreshed automatically, this ranking reflects today's iHerb pricing rather than a snapshot from months ago.

Cost per unit is a starting point, not the whole story — the ideal form, third-party testing, and other ingredients matter too. Always check the label and consult a healthcare professional before starting a supplement.

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Prices update automatically and may differ from iHerb at checkout. Rankings are based on cost per unit of the listed nutrient and are for informational purposes only — not medical advice. Links to iHerb are affiliate links.