Tracking nutrition only helps if the targets are right. The Nutrition Diary calculates your personal calorie and macronutrient needs using the Mifflin-St Jeor formula (the best-validated method according to current research) — matched to your goal: maintain weight, weight loss, fat loss, or muscle gain.

This produces a concrete daily plan split across breakfast, lunch, dinner and snacks. If your personal target differs, you override the plan manually — the calculated value stays visible for comparison.

Log foods via the built-in search (USDA and Open Food Facts databases) or manually. Water and beverages are tracked separately, with individual needs based on weight, activity and circumstances. A history chart makes calorie surplus or deficit visible at a glance.