War.ning: The #1 Mistake You’re Making with Canned Tuna (Avoid Mercury!)

The most common error? Not knowing the differences between tuna varieties. Not all canned tuna is created equal, and the type you choose has a huge impact on how much mercury you ingest.

Here are the three main types:

• •  Skipjack Tuna: This smaller species is usually labeled as “light tuna.” It has the lowest mercury levels—about 0.12 parts per million—making it the safest option for regular consumption.
  • Yellowfin Tuna: Slightly larger, yellowfin contains higher mercury levels (around 0.35 ppm). While not as high as albacore, it should be eaten in moderation.
  • Albacore Tuna: This is the highest in mercury, averaging up to 0.50 ppm. Health authorities recommend significantly limiting how often you eat it.

Tip: If the can doesn’t specify the species, it’s likely skipjack. Always read the label to be sure.

Other Tuna Mistakes to Avoid

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