Yes, if I want to read mountains of papers and meticulously watch and count what I eat and stay current on research and accept difficulty in deciding what and where to eat and treat the joyful act of eating as if it were a shameful act of desperation, then I could. But like I said, I have enough hobbies and I find no shame in recognising that my lineage evolved from a single cell organism to an apex predator.

And yet despite this self-assessed evolution to apex predator status, you probably accept the difficulty and self-restrain from killing other humans during a fit of road rage if you're cut off while driving.

However, some people have cultivated empathy for non-human beings to the point that killing an animal for an easier meal is morally equivalent to killing a human for an easier time on the road.

Some people have also recognized that a bit more difficulty in finding a place to eat is worth it to decrease the ecological impact of eating beef and cheese.

And some others still have realized that not everything should be hedonistic, and enjoy a plant-based diet that contributes to overall greater health even if it means a bit less (or rather, different - vegan food is delicious) sensory pleasure.

Shame can be a powerful motivator to be sure, but altruism and compassion are preferred, here.