Normal, you can eat.

If the shrimp hair is black is not fresh shrimp, the whole shrimp color is darker, not bright, also indicates that has been spoiled. Fresh shrimp have no odor. Fresh shrimp has a normal fishy flavor, if there is a bad smell stink, it means that the shrimp has deteriorated.

Fresh shrimp head and tail intact, head and tail and body closely connected, shrimp body is more quite, have a certain degree of elasticity and curvature. And not fresh shrimp, head and body, shell and meat connected to the slack, head and tail easy to fall off or separate, can not maintain its original curvature.

Extended information:

Can't and shrimp to eat food are:

1, vitamin C-rich foods

Shrimp meat contains high concentrations of pentavalent arsenic Compounds, which itself is harmless to the human body, but if you take a lot of vitamin C at the same time, pentavalent arsenic will be reduced to trivalent arsenic, also known as arsenic trioxide, commonly known as arsenic, can lead to acute arsenic poisoning.

Vitamin C-rich fruits: such as lemons and citrus. Vitamin C-rich vegetables: tomatoes, carrots, green peppers and so on.

2, more tannic acid content of food

Shrimp contains high protein, calcium, phosphorus and other nutrients, if the amount of tannins with a high amount of food to eat together, not only will reduce the nutrients of the shrimp, but also the calcium and tannins will be combined. Generate an indigestible substance, leading to vomiting, dizziness, nausea, abdominal pain and other symptoms.

Fruits with more ellagic acid: persimmons, grapes, pomegranate, hawthorn and so on. Beverages with more ellagic acid: all kinds of tea. Vegetables with more ellagic acid: cabbage.

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