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Seafood Mercury Levels: Safe vs. High Mercury Fish

Comprehensive guide to mercury levels in seafood, helping you make informed choices about fish consumption while minimizing mercury exposure.

RankFood
Mercury Level
Daily Limit
Weekly Limit
Portion Size
#1
Scallops
Small shellfish with extremely low mercury levels
0.5 μg
7%
1%
100g
#2
Shrimp
Popular shellfish with very low mercury content
1.0 μg
13%
2%
100g
#3
Tilapia
Freshwater fish with minimal mercury accumulation
1.0 μg
13%
2%
100g
#4
Sardines
Small, oily fish with very low mercury levels
1.0 μg
13%
2%
100g
#5
Salmon
Nutrient-rich fish with low mercury content
2.0 μg
27%
4%
100g
#6
Anchovies
Small fish with relatively low mercury levels
2.0 μg
27%
4%
100g
#7
Arctic Char
Cold-water fish similar to salmon with low mercury
3.7 μg
53%
8%
100g
#8
Atlantic Mackerel
Oily fish with moderate mercury levels
5.0 μg
67%
10%
100g
#9
Haddock
White fish with moderate mercury content
5.5 μg
77%
11%
100g
#10
Crab
Popular shellfish with moderate mercury levels
6.5 μg
84%
12%
100g
#11
Trout
Freshwater fish with moderate mercury content
7.1 μg
93%
13%
100g
#12
Herring
Oily fish with moderate mercury levels
8.4 μg
107%
15%
100g
#13
Lobster (North American)
Large shellfish with higher mercury content
10.7 μg
133%
19%
100g
#14
Cod
Popular white fish with elevated mercury levels
11.1 μg
147%
21%
100g
#15
Skipjack Tuna
Commonly used in canned tuna with high mercury
14.4 μg
173%
25%
100g
#16
Halibut
Large flatfish with high mercury accumulation
24.1 μg
320%
45%
100g
#17
Yellowfin Tuna
Large tuna species with very high mercury content
35.4 μg
467%
67%
100g
#18
Chilean Bass
Deep-sea fish with very high mercury levels
35.4 μg
467%
67%
100g
#19
Albacore Tuna
White tuna with extremely high mercury content
36.0 μg
480%
68%
100g
#20
Swordfish
Large predatory fish with the highest mercury levels
99.5 μg
1333%
190%
100g

Last updated: March 3, 2025

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