The amount and type of meat that you consume is a huge part of your energy (and water) usage. This is likely one of the biggest impacts you can have on your personal energy and water usage. Putting aside the potential health issues with regards to high red meat diets, it is important from a sustainability perspective to eat less meat and eat meat that is lower in impact. Eating lots of high energy meat is a waste of energy in the same way leaving the refrigerator door open all day would be. We simply don't have enough resources for everyone to be eating lots of high energy meat.