Can you use non fat buttermilk for a marinade instead of regular for a a chicken dish?

Yes, you can use non-fat buttermilk as a marinade for chicken instead of regular buttermilk. While the fat in regular buttermilk can enhance flavor and tenderness, non-fat buttermilk still provides acidity and moisture, which help to tenderize the chicken. Just be aware that the lack of fat may slightly alter the texture and richness of the final dish.