Cactus Flesh can be used as an ingredient in many recipes, but only Guacamole requires it specifically.
Feeding Cactus Flesh to Pigs will result in them producing Manure.
Depending on what type it is, wearing Armor while harvesting a cactus can reduce damage down to 1 . Since Cooked Cactus Flesh heals this amount, one can negate the harvesting damage entirely.
Since Cacti are unaffected by cold during Winter, one can easily harvest Cactus Flesh and eat it cooked to regain Sanity lost from the long nights, or used in lieu of farmed vegetables in Crock Pot recipes.
Cooked Cactus Flesh is acquired by cooking Cactus Flesh on a Campfire, Fire Pit or Star. It restores the same Hunger as its raw form, but doesn't hurt the players Health and restores 15 instead, making it preferable.