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

Leavening agents, cream of tartar
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Energy
10.2 size D batteries

A serving of 100g contains 258kcal, representing ± 10.2 batteries*.

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

* size D, 1.5V, 19500mAh