When I first started going in for RVAF diets, I would pour on raw spices like black pepper/cayenne-pepper/raw garlic/raw onion etc. I then got tired of adding them to my raw muscle-meats but still felt the need to use them for my raw organ-meats for a few more months. I then went for years without adding any spices, except for 1 or 2 short-term experiments with salt or raw honeycomb for various non-taste-related reasons, which were not successful. In recent times, I've also added raw olive-oil and raw apple-cider vinegar to my raw salads as raw lettuce is hardly palatable without added raw sauces. Also, when I'm eating with others, I will usually have something like a raw "ceviche" with extra cayenne pepper, parsley and raw, freshly-squeezed lemon-juice, as that makes it more acceptable to SAD-eaters.
In very recent times, I've redone some experiments with black pepper and cayenne pepper, to see what changes in my body I've made since being 9 years on rawpalaeo, and I seem to do badly on them. That is, with added spices, however raw, I now find that the raw food just goes through my body faster than normal, seemingly less well absorbed than when without spices.