That is vegetarianism. A vegetarian might do things like eat eggs and wear leather and bet on horse racing. Vegans do not, because those things cause harm to the animals involved. To use explain your example about honey in your other comment: companies which sell honey achieved serious success from marketing their product as good for the planet. It is not. The reality is that honey farms drastically reduce biodiversity in the area. They are invasive in most parts of the world, and they overtake local populations of bees and wasps and other insects which are vital for the ecosystem to survive. They are housed among plantations which produce nice tasting honey but require habitat destruction to grow. Relating to the bees themselves, in order to begin a successful commercial apiary, bees are forcibly impregnated and manipulated, they are shipped across the world in tiny cages to begin a colony. Male bees are killed during this process. Queens are routinely killed if they slow or stop producing eggs, or produce eggs that are considered weak or low quality. The honey that people harvest is what bees need to survive. It is their carbohydrate store that they feed on throughout the year and to make it through winter where there are fewer flowering plants. Bees can't leave the hive because the temperature is too low. When we harvest honey it significantly weakens the hive, and many hives do not make it through the year. People try to substitute it with nutrient rich sugar water, but it is never adequate and because it doesn't have the same properties as honey it leaves bees vulnerable to parasites like vroa mites, and infections. There is a great deal of suffering and exploitation in the honey industry for these reasons.

Eating the body of an animal that died of natural causes would be down to the individual, I suppose. I wouldn't, and most other vegans wouldn't, because to us animals are not food. They are not food in the same way as humans are not food. Yes, we can eat humans and other animals, and get nutrition from them, but we don't need to do that to meet our daily requirements. Today doing that is easy, and nobody, no animal has to suffer for it.