Whether or not the nori becomes purple can be eaten, it needs to be judged according to whether the nori is spoiled and whether it is within the expiration date. Nori taste delicious, nutritious, and rich in dietary fiber, protein, calcium, potassium and other nutrients, moderate consumption can not only supplement nutrition, but also has a delay in aging, to assist in lowering blood lipids and other effects. Whether nori becomes purple can eat mainly include the following two situations: 1, can eat: dry normal nori color has red purple, black purple, green purple, nori into purple may be a normal phenomenon, may also be improperly preserved way caused. In this case, you should check whether there is no odor and whether the nori is moldy, whether in the shelf life, if there is no odor, mold, and in the shelf life, generally can be eaten normally. Improperly preserved nori nutrients and taste may decline, so after each consumption, should be careful to seal the nori with a plastic bag, placed in a dry and ventilated place to save; 2, can not eat: nori becomes purple if there is the production of bacteria and fungi, or odor, mold, and not within the shelf life, this kind of nori not only nutrient loss, there may also be harmful substances, usually do not recommend eating again, so as not to It is usually not recommended to eat it again to avoid causing abdominal pain, diarrhea and other gastrointestinal discomfort or other adverse effects on the body. In particular, people with weak constitution, digestive dysfunction and pregnant women should be cautious in eating it to avoid aggravating the discomfort or causing serious adverse reactions.