Pet obesity, recognized as a critical nutritional disease, affects a staggering 60% of dogs and cats globally. This prevalent issue is closely associated with several severe health complications such as orthopedic problems, insulin resistance, diabetes mellitus in cats, low-grade inflammation, and even cancer. Notably, these health risks are exacerbated by concurrent issues like low muscle mass, leading to a shortened lifespan.

Despite the acknowledgment of weight loss as the primary remedy, attaining substantial results is frequently complicated by the significant role of appetite and adherence challenges influenced by family lifestyle. Additionally, the intricacies of managing weight loss intensify with the presence of other concurrent diseases or in aging pets. Furthermore, critical areas such as the impact of protein intake, accuracy in body composition assessments, and the effectiveness of nutraceuticals for controlling appetite and inflammation remain insufficiently explored.

This Research Topic aims to delve into the obesity-related consequences and variables that exacerbate this condition, including the influence of the gut microbiota. The goal is to refine and suggest novel nutritional tools and protocols to enhance weight management, catering specifically to the needs of both healthy and diseased animals.

To gather further insights in addressing these comprehensive challenges, we welcome articles addressing, but not limited to, the following themes:

• Systematic reviews, with or without meta-analysis
• Prospective randomized controlled trials
• Retrospective research approaches
• Utilization of nutraceuticals or drugs for managing appetite
• Innovations in nutritional substances to optimize energy expenditure
• Tailored weight loss rates for elderly or ill pets
• Broader impacts of obesity on pet health.

Andressa Rodrigues Amaral, Pedro Marchi, and Thiago Vendramini work in a research group that has a partnership with a pet food company. Topic Editor Mariana Rentas declares no competing interests with regard to the Research Topic subject.

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Pet Obesity: Health Impacts and Innovations in Weight Management