Animal products are at the heart of environmental issues of agriculture. Their global impacts on land use, biodiversity, water use and greenhouse gas emissions are singled out. The application of Life Cycle Assessment for the environmental assessment of agricultural products and especially meat products has changed the perception of their environmental impacts, providing a broader view of the production system and a multi-criteria evaluation. While the impacts of livestock are better known, the assessment methods remain to be stabilized. A common approach and data bases for the entire meat product chain remain to be developed, to better assess the environmental consequences of the consumption of meat products.