As the other commenter, some differential resistance that's within your capacity should be sufficient. Eating proportionately less sends a signal to the supply

As the other commenter, some differential resistance that's within your capacity should be sufficient. Eating proportionately less sends a signal to the supply chain, which adapts to such signals. Comparatively, you can imagine being vegetarian to be extremely easy in, say, India; because the supply chain is built to support such a diet. (Of course, vegetarianism in India is likely to still mete lot of animal suffering as well.)