Protein & Nutrition Blog – Marmels

Bar chart of protein per treat serving: Marmels Protein Chocolate bar 12 g, bakery croissant 7 g, plain dark chocolate 4 g, ice cream 4 g, milk chocolate bar 3 g and potato chips 2 g

Protein & Nutrition Blog – Marmels

What Is the 80/20 Rule in Eating, and Does It Work?

by Mo Mandegar, PhD on Aug 30 2026
Eighty percent nutrient-dense, twenty percent whatever you want. It is the most repeated eating framework on the internet and the least clearly defined. Across a typical week of about 28 eating occasions, the 20 percent works out to roughly six discretionary choices. Here is the arithmetic, what behavioral research says about why flexibility outlasts perfection, and how to make those six choices count.