One of the few real, direct conflicts on this list — and why it exists.
Macro counting (sometimes called IIFYM — "if it fits your macros") is popular in fitness circles for a good reason: it's flexible and works well for body composition goals. Its explicit trade-off is that food quality is secondary to hitting the numbers.
| Dimension | Macro Counting (IIFYM) | THE FAD |
|---|---|---|
| Core rule | Hit daily protein, carb and fat targets — "if it fits your macros," food quality is secondary | No macro targets — food quality and pattern are the primary signal, not secondary |
| Popular in | Bodybuilding and physique-focused fitness communities | General lifestyle and wellness tracking |
| Common failure mode | Hitting macro targets with low-fibre, ultra-processed foods that "fit the numbers" | Would flag exactly this pattern as a lower Food score, regardless of the macro math working out |
This is one of the more direct tensions on this list: a diet built around protein powder, low-fibre "flexible" snacks and minimal vegetables can hit perfect macro targets while scoring poorly on THE FAD. The two approaches are optimising for different things, and unlike some comparisons on this page, they don't naturally converge.
The best way to understand the difference is to see what a real day scores.
Try the calculator