Only half of the calories produced on croplands are available for human consumption. The calories ‘lost’ to inefficiency (49.9%) is enough to support 7.2 billion people. 39.7% of the lost calories are from beef production, which requires 33 calories of feed for every calorie of boneless meat.

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杨勇,专栏作家,多年从业经验,致力于为读者提供专业、客观的行业解读。