His wife could eat no lean.
But it was my dad who loved the fat and my mom who feared it. And it was dad who lived to almost 100. When they were both in their 80's, I bought them a special pan for making meatloaf. The pan had two parts to it. The inner pan had holes so that any fat from the meatloaf would drain into the second pan. The assumption was that one would discard the drained fat. When I asked my father how it worked he reported that it worked perfectly. The fat drained out, they ate slices of the defatted meatloaf, and then used a slice of bread to sponge up the fat...and enjoyed it. I have long thought that the expression "marching to a different drummer" was created with my dad in mind.