Source of Essential Fatty Acids

Fish oils are the richest source of EPA and DHA. However, linolenic acids are generally found in the seeds, nuts, and plant oils. The EPA, DHA, and ALA content of different fishes, seeds, nuts, and plants are presented in Table 3.1.

Health Benefits of Essential Fatty Acids

Consuming fish oil and PUFAs are believed to have different health benefits throughout the world. The pioneer researches on the effect of the fish and fish

TABLE 3.1 The Natural Sources of Essential Fatty Acids (g/100 g) (Raper, Cronin, & Exler, 1992;Tontul & Topuz, 2015)

Source

ALA

EPA

DHA

Fishes

Salmon

n.r.

0.3

0.5

Atlantic mackerel

n.r.

0.9

1.4

Atlantic herring

n.r.

0.7

0.9

Whitefish species

n.r.

0.3

0.9

Swordfish

n.r.

0.1

0.5

Smelt, rainbow

n.r.

0.3

0.4

Seed and Plant Oils

Flaxseed oil

56.0

n.r.

n.r.

Perilla seed oil

56.8

n.r.

n.r.

Sacha inchi oil

50.4

n.r.

n.r.

Chia oil

52.0-63.4

n.r.

n.r.

Camelina oil

33.7-40.3

n.r.

n.r.

Purslane oil

31.4-43.7

n.r.

n.r.

Lingonberry seed oil

25.2-27.3

n.r.

n.r.

Walnut

10.6-16.2

n.r.

n.r.

Hemp seed oil

5.0-8.7

n.r.

n.r.

n.r. not reported,

ALA: a-Linolenic acid, EPA: Eicosapentaenoic acid, DHA: Docosahexaenoic acid oil consuming on the health was conducted to determine why Greenland Eskimos had the lowest heart disease in 1970s (Sidhu, 2003). Since then effect of fish oils and PUFA consumption on different health problems was studied.

 
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