Verdict: In moderation
Wild mushrooms are generally toxic to cats and should be avoided. While store-bought cultivated mushrooms are typically non-toxic, they can still cause gastrointestinal upset. Always err on the side of caution and prevent cats from consuming any mushrooms.
Mechanisms vary widely by toxin, affecting neurological, gastrointestinal, hepatic, or renal systems. For example, some cause neurotoxicity, others disrupt cellular function leading to organ damage.
Various toxins depending on mushroom species (e.g., muscarine, ibotenic acid, psilocybin, amatoxins)