Try to eat 3000 calories of sugar or donuts one day then try to eat 3000 calories of steak.
If I have even 1800 calories of steak I won't need to eat the rest of the day.
If I have even 1800 calories of steak I won't need to eat the rest of the day.
Nobody eats only steak. People want fat and carbs for the taste.
There are people that eat only steak: https://www.biohackerslab.com/ep19-dr-shawn-baker/
By "nobody" I meant "nobody representative of a noteworthy population in statistics".
Even if you do not trust the scientific consensus regarding nutrion (all recommend fruits (sugar) and vegetables, most recommend a whole food plant based diet, most warn against a high fat diet, most warn against animal products in large quantities) there are other reasons for avoiding animal products:
- Ethics. An animal is a sentient emotional being. Like a human.
- Destruction of the environment. E.g. waste of food by feeding animals, deforestation, water pollution, greenhouse gas emission.
- Waste of effictive antibiotics. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4638249/
- Animal products are expensive even if you buy the lowest quality.
Some of what you describe can be attributed more to factory farming which I generally disagree and personally don't buy.
Animal products aren't expensive if you compare calories per dollar.
Furthermore: https://www.youtube.com/watch?v=Lc23vYwPihU