What is a practical starting volume ratio for a dry mix between carbohydrate base and protein source?

Answer

Roughly two parts carbohydrate base to one part protein source

A useful initial guideline for creating a dry mix with moderate energy is aiming for a ratio of approximately two measures of carbohydrate filler, like oats, for every one measure of a primary protein additive, like soy flour.

What is a practical starting volume ratio for a dry mix between carbohydrate base and protein source?
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