The question we get asked most — answered directly, with no spin.
This is one of the most common questions we get, so it's worth answering directly: THE FAD does not track calories, and it isn't designed as a weight-loss tool — but the two are more connected than they might first appear.
Weight change is primarily governed by energy balance — calories in versus calories out — which is a different question from inflammatory load. Plenty of calorie-appropriate diets are quite inflammatory, and it's entirely possible to lose weight while your Food score stays poor.
In practice, many of the same changes that lower inflammatory load — cutting back on ultra-processed food and added sugar, eating more fibre and protein, drinking less, sleeping better, moving more — also tend to support a healthier body weight over time. That's not a coincidence: chronic inflammation and metabolic health are closely linked in the research literature.
If weight loss is a specific goal, pair THE FAD with a dedicated calorie or macro tracker rather than expecting one number to answer both questions. Use THE FAD for the "how do I actually feel" side of the equation, and a calorie tool for the energy-balance side, if that's what you need.
A calorie deficit — eating less energy than your body uses — is the mechanism behind essentially all weight loss, regardless of which named diet gets credit for it. THE FAD doesn't calculate or track a calorie deficit at all; it's simply a different, complementary question about the same eating pattern.
The honest pitch: THE FAD is about how you feel day to day, not the number on the scale. For many people that turns out to be a more sustainable, less anxiety-inducing thing to optimise for — but it isn't a weight-loss program, and we won't pretend it is.