# Why Is Tuna So High In Mercury, And How Much Tuna Is Too Much?

- Link: https://www.widthness.com/why-is-tuna-so-high-in-mercury-and-how-much-tuna-is-too-much/
- Published: 2024-11-26T09:30:55-06:00
- Author: Curated by John Wysocki

Image caption: Yellowfin tuna before it’s been smooshed up and sealed in a metal can. Image credit: Thahaali / Shutterstock.com. Article by Tom Hale. IFLScience – November 20, 2024. Nutritionally speaking, tuna is an outstanding source of nourishment, offering high-quality protein, fatty acids for heart and brain health, and essential vitamins and minerals like vitamin D, B12, and selenium. However, not to mention its huge sustainability concerns, this nutrient-loaded fish has a major downside: it’s packed with mercury, […] Click here to view original web page at www.iflscience.com