Short answer
Both turmeric and ginger are safe for cats when given in small amounts. A pinch of either spice is commonly used in joint supplements and won’t harm a healthy cat. Large quantities of either can irritate the stomach and cause vomiting or diarrhea. Offer only a tiny pinch, watch for any digestive upset, and contact your vet if you notice anything unusual.
Turmeric — Food safety facts
Safe to share · Cats · full breakdown on the linked food page
A small pinch is safe and is used in some joint supplements. Large doses upset the stomach.
The full verdict, portion guidance and serving notes are collected on the Turmeric food facts page.