多家初创公司正在开发混合肉制品，即含有真实肉类和植物蛋白的混合物，以期减少人们对红肉的消费，从而降低畜牧业产生的温室气体排放。1畜牧业产生全球温室气体排放量的10-20%，其中近三分之二来自牛等反刍动物。1
Joyn公司的50/Cut混合肉产品已率先进入市场。在南卡罗来纳州Cane Bay高中的试吃中，该产品获得92%学生支持率。1目前，该产品已进入学校食堂、高端杂货店和餐厅，混合肉丸已在七个州的学校菜单中推出。1
相比完全植物性肉类，混合肉制品因口感更接近真实肉类而获得消费者青睐。12022年USDA资助的盲味测试显示消费者更喜欢混合汉堡而非纯植物基汉堡。1ADM报告显示75%的美国千禧一代对尝试混合肉制品感兴趣。1
从经济角度看，50/Cut混合肉产品比纯牛肉便宜5-15%。1从环保角度看，50/Cut汉堡的温室气体足迹仅为纯牛肉饼的一半。1
尽管如此，美国人对牛肉的需求仍然强劲。2025年美国人消费了价值450亿美元的牛肉，同比增长4.3%。1但气候科学家普遍认为减少牲畜排放至关重要。2024年哈佛调查超过200名气候科学家，绝大多数认为减少牲畜排放对实现气候目标很重要。1
Several companies are creating hybrid meat products that combine real meat with plant-based proteins, aiming to lower consumer demand for red meat and decrease greenhouse gas emissions from livestock farming.1 Joyn's 50/Cut blended meatball received support from 92% of students during a taste test at Cane Bay High School in South Carolina, and the product has since entered school cafeterias, upscale grocery stores, and restaurants.1 The company's blended burger produces only half the greenhouse gas emissions of a pure beef patty, while costing 5–15% less than conventional beef.1
The approach addresses a significant climate challenge: livestock farming accounts for 10–20% of global greenhouse gas emissions, with nearly two-thirds coming from ruminant animals like cattle.1 A 2022 blind taste test funded by the USDA found that consumers preferred blended burgers over purely plant-based alternatives, suggesting that hybrid products may achieve greater market acceptance than fully meat-free options.1 Industry research indicates that 75% of American millennials are interested in trying blended meat products.1 50/Cut meatballs have already been introduced to school menus across seven states.1
Climate scientists increasingly recognize the importance of reducing livestock emissions for meeting climate goals. A 2024 Harvard survey found that the vast majority of over 200 climate scientists considered reducing ruminant emissions essential to achieving climate targets.1 However, challenges remain: according to Fredrik Hedenus, a professor at Chalmers University of Technology in Sweden, "we do not have a technological solution to change the stomach of ruminant animals."1
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