Comparison

THE FAD vs. Atkins

The original mainstream low-carb diet, and how it holds up against an inflammation-based score.

Atkins was one of the original mainstream low-carb diets, built around phased carbohydrate reintroduction rather than keto's more rigid, sustained macro ratio.

DimensionAtkinsTHE FAD
Core ruleVery low carbohydrate in its early phases, gradually reintroducing carbs over timeNo phased structure — scores your current pattern directly
EraOne of the original popular low-carb diets, predating keto's current popularityN/A
Overlap with ketoSimilar early-phase mechanics to keto, with a more structured phase-based reintroduction planWould score an Atkins-style pattern the same way it scores keto — based on the actual foods, not the diet's name

Similar territory to keto

Much of what applies in our FAD vs. Keto comparison applies here too — an Atkins-style pattern built around vegetables and quality protein can score reasonably; one built mainly around processed meat and minimal fibre will not, regardless of which phase you're in.

See your own comparison

The best way to understand the difference is to see what a real day scores.

Try the calculator