prov:value
| - Thus, from an energy and an environmental point of view, it is more efficient for humans to be primary consumers (to subsist from vegetables, grains, legumes, fruit, etc.) than to be secondary consumers (from eating herbivores, omnivores, or their products, such as milk, chicken, cattle, sheep, etc.) and still more so than as a tertiary consumer (from consuming carnivores, omnivores, or their prod
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