Hello, Commissioner of the mod here. This mod is designed to be played alongside Cannibal Trait Tweaks to make Cannibals truly dependent on human/sentient races meat to stay happy. Let me go ahead and explain what it does in more detail.

Firstly, all Cannibals will get a +12 mood buff when eating Humanlike corpses instead of a -12.

Secondly, Cannibals will now get massive mood debuffs when eating plants, and smaller debuffs when consuming animals. When this mod and Cannibal Trait Tweaks are combined, this becomes the system:

Raw Veggies = -18 Mood Debuff (Edited mine to -20 after some testing)
Cooked Veggie Meals Without Meat = -12 Mood Debuff (Edited mine to -15 after some testing)
Cooked Meals with Animal Meat + Veggies = -6 Mood Debuff from Cannibal Trait Tweaks
Cooked Meals with Veggies + Animal Products = -12 Mood Debuff (-15)
Raw Animal Meats = -6 Mood Debuff
Cooked Meals with Human Meat + Veggies = +6 Mood Buff from CTW (Edited mine to +10)
Raw Human Meat = +3 Mood Buff from CTW (Edited mine to +14. Changes to these were too dramatic in my opinion)
Raw Animal Products and Animal Product Meals are unaffected. This may come later down the line.

Furthermore, all of these values are configurable through the xml files, so you can change them to whatever you want!

This mod is also designed to be used with:
Cannibal and Insect Meals - https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1558455017
and Cannibal Meals (VGP required) - https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=1537104826&searchtext=cannibal+vgp
I highly recommend you grab them for the full Cannibal experience.

As a minor sidenote, "Wood" is also considered a raw veggie. This means that any Cannibal Thrumkin you may have will dislike having to chew on twigs even more.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2017359567&searchtext=thrumkin

Have fun! Cannibal Tribes should really come to life with this! Combined with mods like Set Up Camp and Giddy-Up, your tribe can traverse the world and raid villages as they go.