What happens if you eat the black vein in a shrimp’s tail?

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When preparing shrimp, you may have noticed a dark line running along its back—often called the “vein.” While many people remove it before cooking, is it actually harmful to eat? Or is it just a matter of taste and texture?

What Is the Black Line in Shrimp?

Contrary to its name, this dark streak isn’t a vein—it’s the shrimp’s digestive tract, which can contain traces of sand, sediment, or undigested food.

Is It Safe to Eat?

Generally, yes. Properly cooked shrimp kills any bacteria, making the vein harmless. However, some people prefer to remove it because:

  • Texture: It can feel slightly gritty.

  • Flavor: It may add a faint bitterness.

When Should You Remove It?

  • Large shrimp: The vein is more noticeable and may contain more debris.

  • Delicate dishes: For dishes like ceviche or elegant presentations, removing it ensures a cleaner taste and appearance.

  • Personal preference: If the texture or look bothers you, take it out.

For small shrimp, removing the vein isn’t always necessary, as it’s less noticeable and harder to extract.

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