"Lions also eat meat" - does that argue against veganism?
Created on: August 4, 2026
Last edited on: August 4, 2026
No - lions are carnivores, whereas humans are omnivores and can essentially meet their nutritional needs with a plant-based diet. Furthermore, humans can make moral decisions and utilize alternatives. Therefore, what wild animals do is not a standard for what humans should do.
Why do lions have to eat meat?
“You wouldn't ask a lion why it eats meat.”
This argument is one of the most common objections to veganism. However, it does not hold up to closer examination for long.
The most obvious reason for this is physical differences: lions are - at least currently, as there is (yet) no widespread, vegan alternative - dependent on eating other animals. Their entire body, from their teeth to their digestive system to their metabolism, is designed for consuming meat.
Are humans carnivores or omnivores?
Unlike lions, humans are omnivores. This means that our bodies can process both animal and plant-based foods. This does not imply that we must or should eat animal products under all circumstances. Moreover, today we have something that wild animals do not: supermarkets, education, and scientific knowledge about nutrients.
→ So we have a choice - why should we choose violence?
Why is natural not automatically right?
The lion argument is based on the assumption that meat consumption is right simply because it is natural. However, this is precisely a fallacy, known as the naturalistic fallacy. The fact that something occurs in nature does not mean that humans should morally imitate it.
Many things happen in nature that we still reject for humans:
- Animals kill the offspring of other animals.
- Many animals fight to the death over territories or mates.
- Diseases, parasites, and famines are also part of nature.
No one would conclude from this that humans should behave in the same way. Conversely, there are countless things that are clearly unnatural and yet improve our lives, for example:
- Hospitals
- Glasses
- Supermarkets
Whether something is natural or not, therefore, says nothing per se about its moral evaluation or its health benefits.
Can humans live healthily without meat, and what are the moral implications?
Yes - we know today that a well-planned vegan diet (with B12 supplementation) can meet nutritional needs and be healthy.
When a lion kills an antelope, it does not do so deliberately. Its cognitive abilities simply do not allow it to make a conscious moral decision. Humans, on the other hand, can consciously reflect on the consequences of their actions and adjust their behavior accordingly. It is possible to live vegan.
Furthermore, we should not simply blindly base our actions on what others do when making moral decisions. If some animals kill their offspring, for example, that is no reason for us to do the same.
Conclusion - Lions are not a role model for human nutrition
Lions eat meat because they are biologically dependent on it and cannot weigh up alternatives. Humans, on the other hand, can use plant-based foods and reflect on the consequences of their decisions. The behavior of a wild animal is therefore no justification for what humans do to other animals. That is precisely what the ethical debate about veganism is about: not what lions do, but what decisions humans can make.
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