What happens if you eat the black vein in a shrimp’s tail? | May 15, 2025

When preparing shrimp, it’s common to notice a thin black line running along the top of the back. Often called a “vein,” many cooks take the time to remove it before cooking. But what actually happens if you eat it? Is it dangerous or simply a matter of preference?

What is the black vein in shrimp?
The first thing you should know is that this “vein” isn’t a vein at all. It’s part of the shrimp’s digestive tract, specifically its intestine. It’s a small line that may contain sand, sediment, or undigested food.

Is it dangerous to your health?

No, in most cases, eating the black vein in shrimp doesn’t pose a health risk. If the shrimp has been cooked thoroughly, any potentially harmful bacteria will be killed by the heat. However, the issue is more about texture and flavor: many people prefer to remove it because it can give a gritty or slightly bitter taste.

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