Our method

1. Your daily macros

We calculate your daily protein, fat and carb targets from your current weight, target weight, age, gender and activity level.

2. Nutrition data

We use USDA FoodData Central, the reference database of the US Department of Agriculture. When a food has several entries, we use the average protein, fat and carb values.

3. Why USDA and not Ciqual?

Ciqual, managed by ANSES, is the French reference table, and some of its values come from USDA. We go straight to the source for three reasons. USDA data is updated twice a year, while Ciqual updates are several years apart. It covers more than twice as many generic foods, which means fewer gaps. And it often lists several entries for the same food, so we can average protein, fat and carb values instead of relying on a single measurement.

4. Cooking fat

Not all the fat you cook with ends up on your plate. Some stays in the pan, and some is lost as spatter and smoke.

Pallas counts only the part you actually eat. That's why your ingredients show two kinds of fat:

• For cooking: about 50% of cooking fat is counted
• Added raw: counted in full

Most tracking apps count cooking fat as fully eaten. On keto, that can lead you to eat less fat than you need.

5. Plant protein and fat

The body absorbs protein and fat from plants less well than from animal sources. Pallas applies a reduction to both to reflect this.

6. Estimates, not exact values

Nutritional values vary with the product, the cut and the cooking method. Treat these numbers as estimates, not lab measurements. Pallas is not a substitute for advice from a health professional.

That's why Pallas lets you log your ketones: they show whether your macros keep you in ketosis.