It takes 3500 calories to make a pound of fat!

Lamb, domestic, cubed for stew or kabob (leg and shoulder), separable lean only, trimmed to 1/4" fat, raw
» Lamb, Veal, and Game Products

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Energy Fat
24.2 size D batteries 0.3 butter sticks

A serving of 453.6g contains 608kcal, representing ± 24.2 batteries*.

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

* size D, 1.5V, 19500mAh

A serving of 453.6g contains 23.95g fat, which is comparable to ± 0.3 butter sticks.