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Cheapest Polyunsaturated on iHerb

Ranked by real cost per g of Polyunsaturated — cheapest value first.

Prices updated Jul 25, 2026 · 11 products · Prices in USD

The priciest option here costs about 89.9× more per g of Polyunsaturated than the best-value pick Carrington Farms. For the same daily dose, choosing by cost per unit instead of sticker price can meaningfully cut your yearly spend.
#ProductDoseServingsPrice (USD)Cost per g
1
Carrington Farms, Organic Milled Flax Seeds, 14 oz (397 g)
Carrington Farms, Organic Milled Flax Seeds, 14 oz (397 g)
Carrington Farms
4 g336.780.059View on iHerb →
2
Healths Harmony, Organic Black Seed Oil, 16 fl oz (473 ml)
Healths Harmony, Organic Black Seed Oil, 16 fl oz (473 ml)
Healths Harmony
3 g9634.970.121View on iHerb →
3
Swanson, Sunflower Lecithin Powder, 1 lb (454 g)
Swanson, Sunflower Lecithin Powder, 1 lb (454 g)
Swanson
7 g3027.820.133View on iHerb →
4
Nature's Path, Organic Hemp Hearts Granola Cereal, 11.5 oz (325 g)
Nature's Path, Organic Hemp Hearts Granola Cereal, 11.5 oz (325 g)
Nature's Path
6 g65.360.149View on iHerb →
5
Healths Harmony, Organic Black Seed Oil, 8 fl oz (240 ml)
Healths Harmony, Organic Black Seed Oil, 8 fl oz (240 ml)
Healths Harmony
3 g4821.950.152View on iHerb →
6
Nature's Path, Organic Coconut Chia Granola Cereal , 12.34 oz (350 g)
Nature's Path, Organic Coconut Chia Granola Cereal , 12.34 oz (350 g)
Nature's Path
4 g65.480.228View on iHerb →
7
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 180 Softgels
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 180 Softgels
Planetary Herbals
1 g9029.390.327View on iHerb →
8
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 90 Softgels
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 90 Softgels
Planetary Herbals
1 g4515.390.342View on iHerb →
9
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 45 Softgels
Planetary Herbals, Full Spectrum™ Pumpkin Seed Oil, 1,000 mg, 45 Softgels
Planetary Herbals
1 g228.230.374View on iHerb →
10
Vibrant Health, Maximum Vibrance®, Version 7.0, Vanilla Bean, 21.5 oz (610 g)
Vibrant Health, Maximum Vibrance®, Version 7.0, Vanilla Bean, 21.5 oz (610 g)
Vibrant Health
1 g1579.205.28View on iHerb →
11
Vibrant Health, Maximum Vibrance®, Version 7, Chocolate Chunk, 23.2 oz (659 g)
Vibrant Health, Maximum Vibrance®, Version 7, Chocolate Chunk, 23.2 oz (659 g)
Vibrant Health
1 g1579.205.28View on iHerb →

How we rank Polyunsaturated

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.