Freshwater fish can be eaten during the period of iodine prohibition, and its iodine content is low, but it should be eaten in small amounts. Fish can be divided into freshwater fish and marine fish, marine fish with high iodine content is prohibited during the period of iodine ban, such as scallops, tuna, etc. However, the iodine content of freshwater fish is relatively low, so during the period of iodine ban, you can eat freshwater fish, such as carp, crucian carp, grass carp, etc. It should be noted that although the iodine content of freshwater fish is low, but still need to control the amount of food, otherwise it may cause iodine ban, but should be eaten in small amounts. It should be noted that although freshwater fish is low in iodine content, it is still necessary to control the amount of food consumed, otherwise it may cause indigestion and other uncomfortable symptoms. People who are in the period of iodine prohibition should restrict iodine-rich foods, such as kelp, nori, seafood, etc. Consult your doctor for detailed precautions.