Eucestoda the "broad tapeworm" or "fish tapeworm") and related species. Humans become infected by eating raw, undercooked, or marinated fish acting as a second intermediate or paratenic host harboring metacestodes or plerocercoid larvae. Clinical symptoms are due to the large size of the tapeworm, which often reaches a length exceeding 15 m. The most common symptom is pernicious anemia, caused by the absorption of vitamin B12 by the worm. Other symptoms include various intestinal issues, slight leukocytosis, and eosinophilia. This condition is caused by the plerocercoid larvae of the tapeworm "Spirometra". Humans become infected by drinking contaminated water, eating raw or
Ethical eating Ethical eating Ethical eating or food ethics refers to the moral consequences of food choices, both those made by humans for themselves and those made for food animals. Common concerns are damage to the environment, exploitive labor practices, food shortages for others, inhumane treatment of food animals, and the unintended effects of food policy. Ethical eating is a type of ethical consumerism. Certain methods of food production and certain types of foods have greater environmental impacts than others. The Union of Concerned Scientists advises that avoiding eating beef is one of the two most important actions most people can take