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Evolution Quote by Vaclav Smil

“Evolution has made us omnivores, and substantial quantities of meat can be produced by feeding plant matter whose production does not directly compete with growing food crops: crop residues, food processing waste, low-quality grain, and controlled grazing by ruminants.” quote by Vaclav Smil
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“Evolution has made us omnivores, and substantial quantities of meat can be produced by feeding plant matter whose production does not directly compete with growing food crops: crop residues, food processing waste, low-quality grain, and controlled grazing by ruminants.”

Vaclav Smil

About This Quote

Source Book: Energy and Civilization: A History, 2017

Human diets evolved to eat both plants and animals; modern meat can be sourced from non‑crop feedstocks, reducing competition with food production.

In simple terms: We can produce meat without using food crops.

Key Takeaway

Consider alternative feed sources for sustainable protein.

Themes

sustainability food systems environment

Mood

concerned optimistic

Type

analytical informative

When to use this quote

  • policy making
  • agricultural planning
  • consumer choices
  • food product development

Key Concepts

ecology resource efficiency livestock management

Questions to Reflect On

  • How can we scale low‑impact meat production?
  • What policies encourage use of waste streams for feed?
A Different Perspective

Reliance on animal agriculture still poses greenhouse‑gas and land‑use challenges.

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