1. Is tuna poisonous Fresh tuna is not poisonous. Because of the rapid development of human beings and the high requirements for food, tuna has become one of the more high-grade ingredients. Tuna like to live in warm waters, but they live far from the shore. They are not only low in fat content, but also high in nutritional value. Eating tuna regularly can keep balanced nutrition, so fresh tuna is non-toxic.
However, with the rapid development of industry, the pollution of the ocean is more serious. The content of heavy metals in seawater is increasing day by day, and these heavy metals are likely to be absorbed by tuna, so eating too much tuna may lead to metal poisoning. However, this situation is not common.
2. What's the difference between tuna and sardines1. Different shapes: There are many species of tuna, and different species have different body lengths. Some tuna can be about 2-3 meters long, while others can be about 4 meters long. Sardines are small in size, and their body length is only about 15-30 cm in adulthood. Tuna is round and thick, while sardines are slender.
2. Different species: Tuna belongs to perch and mackerel, while sardines belong to herring and herring, and their species are quite different.
