Forks weren't widely used in the United States until the 1800s

Duck, domesticated, liver, raw
» Poultry Products

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Energy Fat
5.4 size D batteries 0.1 butter sticks

A serving of 100g contains 136kcal, representing ± 5.4 batteries*.

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

* size D, 1.5V, 19500mAh

A serving of 100g contains 4.64g fat, which is comparable to ± 0.1 butter sticks.