It takes 3500 calories to make a pound of fat!

Beef, short loin, porterhouse steak, separable lean and fat, trimmed to 1/4" fat, USDA select, raw
» Beef Products

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Energy Fat
39.9 size D batteries 0.7 butter sticks

A serving of 453.6g contains 1007kcal, representing ± 39.9 batteries*.

A aged requires 2700kcal (107.3 batteries*) a day.

* size D, 1.5V, 19500mAh

A serving of 453.6g contains 66.91g fat, which is comparable to ± 0.7 butter sticks.