<p>The findings, published in Scientific Reports, highlight how pet owners can feed their animals more sustainably while still providing them with sufficient nutrients and calories. Marcio Brunetto and colleagues evaluated the environmental impacts, including greenhouse gas emissions, land use, and water usage, of 618 diets for dogs and 320 diets for cats in Brazil. The authors investigated commercial wet diets and dry diets&nbsp;found on the websites of three major Brazilian pet food retailers.</p>
<p>For all variables, wet diets for cats and dogs had the greatest environmental impact, particularly compared to dry diets. Homemade diets tended to have intermediary environmental impacts, although water usage in homemade cat diets was similar to dry diets. Dry diets provided the highest amount of energy per gram, while wet diets and homemade diets provided higher amounts of protein. In wet diets, almost twice as much energy was provided by animal ingredients compared to dry diets.</p>

Feeding dry food to your pets may reduce environmental impact: Study

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