EXPLORE A NUTRIENT

PUFA 18:4

Discover how amounts vary across foods, on a shared basis for comparison.

Fatty-acid notation 18:4 specifies 18 carbons and 4 double bonds. Listed forms remain separate. [1]

No verified diagram selected — diagram unavailable — **Diagram unavailable**
No structure is inferred for this identity.
Description, source and attribution
A verified diagram has not been selected for this exact reporting identity. No molecular structure is inferred.
Original Bitameans conceptual/fallback artwork; not a chemical structure. Source · Reuse terms
Source check: 2026-09-13 · No scientific editorial review.

A COMMON BASIS

Foods, per 100 g

100 g

Search foods

Sort by amount

74 foods with data 32 not reported, excluded from ranking

Atlantic salmon
Farmed Atlantic salmon, cooked with dry heat.
0.184 g
Canned sardines
Atlantic sardines canned in oil, drained solids with bone.
0.125 g
Blue mussels
Blue mussels, cooked with moist heat.
0.07 g
Canned light tuna
Light tuna canned in water, drained solids; not specified as no-salt-added.
0.002 g
Cheddar cheese
Cheddar cheese; sodium reflects the source product.
0.001 g
Atlantic cod
Atlantic cod, cooked with dry heat.
0.001 g
Ricotta cheese
Whole-milk ricotta cheese.
0.001 g
Rainbow trout
Farmed rainbow trout, cooked with dry heat.
0.001 g
Pearled barley
Cooked pearled barley; added salt/fat not specified in the source description.
0 g
Fresh basil
Fresh basil leaves.
0 g
Beef ground 90% lean
Ground beef, 90% lean / 10% fat, cooked as a pan-broiled patty.
0 g
Beet
Beet, boiled and drained; added salt is not stated in the source description.
0 g

All results are sorted before pagination. Bars compare amounts within this search; they do not indicate health benefits. Not reported does not mean zero.

Loading ranking…

UNDERSTAND THE DATA

The nutrient, in context

How to read this ranking

This page compares PUFA 18:4 (PUFA 18:4), in g per 100 g of food.

Chemical forms and measurement methods remain separate. “Not reported” means a value is unavailable, not that the food contains zero. A food’s rank does not determine your individual needs or diagnose a deficiency.

Intake guidance

There is no validated NIH ODS fact sheet for this identity in Bitameans’ published version. We do not assign another nutrient’s recommendations to this form. An absent fact sheet does not mean that no upper intake limit exists.

Browse the NIH ODS fact-sheet directory

Identity and structure sources

USDA FoodData Central: Foundation Foods Documentation · Accessed 2026-09-13

Photograph credits