Why do you get sick from eating crayfish?

Eating crayfish can lead to illness primarily due to the presence of harmful bacteria, viruses, or parasites, often resulting from improper handling or cooking. Crayfish can also accumulate toxins from their environment, such as heavy metals or pollutants. Additionally, some individuals may have allergic reactions to shellfish, which can cause sickness. To minimize risks, it's essential to ensure crayfish are sourced from clean waters, stored properly, and cooked thoroughly.