Salmon as food

[2] Raw wild salmon is 70% water, 20% protein, 6% fat, and contains no carbohydrates (table).

PCBs, metformin, and mercury are some of the pollutants found in wild salmon,[6] caught close to wastewater treatment plants of major metropolitan areas in the United States’ Pacific Northwest.

Smoked salmon is another preparation method, and can either be hot- or cold-smoked.

Traditional canned salmon includes some skin (which is harmless) and bone (which adds calcium).

[citation needed] Raw salmon flesh may contain Anisakis nematodes, marine parasites that cause anisakiasis.