Dangers are Real. The effects of mushrooms (psilocybin) vary significantly on their strength & purity. It is difficult to know much active material you are using. The significant issues occur when they are taken in large amt's.They have potential to cause nausea, vomiting, cramping, abdominal pain, diarrhea, ^ blood pressure, ^ heart rate, impaired judgment, dizziness, anxiety & flashbacks, numbness, dizziness >.
Mild to severe. The active agent in the mushrooms creates a high which in a few cases can be unpleasant. The greatest danger is that this is an unregulated market and the product can be adulterated with psychoactive medication and some of the mushrooms may be of a different and very dangerous species. Use great caution in this area (let someone else take them first and watch).