A topical subject in human nutrition is the steadily growing number of people choosing to limit or completely avoid all animal-derived food products either for moral dilemma, health concerns or both. To meet people's will of applying their dietary choices to their domestic animals, the pet food industry answered by launching on the market some plant-based diets. This leads to concerns about whether these diets are adequately formulated to satisfy the target species nutritional requirements, especially for cats which are still considered strict carnivores. This case report follows a 2-year-old male neutered Main Coon and a 1-year-old female spayed Domestic Shorthair cat, presented to the nutrition service of the University of Toulouse, France. Reason for consultation was lethargy with in anamnesis a recent dietary transition to a plant-based pet food. Dysorexia, lethargy and muscle waste were present at first consultation. Progressive weight loss developed during follow-ups. A macrocytic, non-regenerative anaemia with serum folates below reference were the main clinical features. Analysis of pet food showed multiple nutrients below minimum recommendation at the average daily intake of both cats. Folic acid supplementation improved dysorexia, and subsequent reintroduction of animal-derived ingredients in the diet restored appetite, weight and a normal mentation in both cases.

中文翻译：

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植物性“纯素”宠物食品与两只猫多种营养缺乏症的临床表现之间的关系

人类营养的一个热门话题是越来越多的人选择限制或完全避免所有动物源性食品，无论是出于道德困境、健康问题还是两者兼而有之。为了满足人们将饮食选择应用于家畜的意愿，宠物食品行业通过在市场上推出一些植物性饮食来做出回应。这导致人们担心这些饮食是否经过充分配制以满足目标物种的营养需求，尤其是对于仍被视为严格食肉动物的猫。本病例报告讲述了一只 2 岁雄性公猫和一只 1 岁雌性已绝育家养短毛猫，它们被送到法国图卢兹大学的营养服务处。咨询的原因是嗜睡，因为最近饮食过渡到植物性宠物食品。第一次咨询时出现食欲不振、嗜睡和肌肉浪费。随访期间逐渐减轻体重。血清叶酸低于参考值的巨细胞性非再生性贫血是主要的临床特征。对宠物食品的分析显示，两只猫的平均每日摄入量低于最低推荐值的多种营养素。补充叶酸改善了食欲不振，随后在饮食中重新引入动物源性成分，在这两种情况下都恢复了食欲、体重和正常的精神状态。血清叶酸低于参考值的非再生性贫血是主要的临床特征。对宠物食品的分析显示，两只猫的平均每日摄入量低于最低推荐值的多种营养素。补充叶酸改善了食欲不振，随后在饮食中重新引入动物源性成分，在这两种情况下都恢复了食欲、体重和正常的精神状态。血清叶酸低于参考值的非再生性贫血是主要的临床特征。对宠物食品的分析显示，两只猫的平均每日摄入量低于最低推荐量的多种营养素。补充叶酸改善了食欲不振，随后在饮食中重新引入动物源性成分，在这两种情况下都恢复了食欲、体重和正常的精神状态。