Mercury exposure from consuming tuna can vary depending on the type of tuna and its source. Generally, larger and older fish tend to have higher mercury levels due to bioaccumulation.
Here are some typical mercury levels for different types of tuna:
- Canned light tuna: Approximately 0.12 parts per million (ppm)
- Canned albacore (white) tuna: Approximately 0.32 ppm
For a 6 oz can of tuna:
-
Canned light tuna:
- Mercury exposure = 0.12 ppm × 170.1 grams (6 oz) = 20.5 micrograms of mercury.
-
Canned albacore (white) tuna:
- Mercury exposure = 0.32 ppm × 170.1 grams (6 oz) = 54.4 micrograms of mercury.
It's important to be aware of the recommendations from health organizations regarding tuna consumption due to mercury exposure, particularly for pregnant individuals, nursing mothers, and young children. If you have specific health concerns, it's wise to consult with a healthcare professional for personalized advice.