Calorie deficit, protein targets, label reading and portion estimation — free guides to the reasoning behind the calculators.https://fitdexai.com/enhttps://fitdexai.com/en/guides/how-accurate-is-photo-calorie-counting/https://fitdexai.com/en/guides/how-accurate-is-photo-calorie-counting/A photo shows volume, not density. What an AI model can see on the plate, what it is forced to guess, and the practical ways to shrink the error.Mon, 10 Aug 2026 00:00:00 GMTaicaloriesmeasurementhttps://fitdexai.com/en/guides/how-much-protein-per-day/https://fitdexai.com/en/guides/how-much-protein-per-day/0.8 g/kg is an adequacy floor, not a target. Why the number rises in a deficit, in training and with age; per-meal distribution and what protein costs in calories.Mon, 03 Aug 2026 00:00:00 GMTproteinmacrosdiethttps://fitdexai.com/en/guides/how-to-read-a-nutrition-label/https://fitdexai.com/en/guides/how-to-read-a-nutrition-label/The number on the label is usually per 100 grams, not per pack. The portion trap, the reference intake column, sugars versus added sugars, and the ordering rule behind the ingredients list.Mon, 27 Jul 2026 00:00:00 GMTlabelsnutritionshoppinghttps://fitdexai.com/en/guides/what-is-a-calorie-deficit/https://fitdexai.com/en/guides/what-is-a-calorie-deficit/A calorie deficit means eating less than you burn. One kilogram of fat tissue holds roughly 7,700 kcal, and your weekly target is worked backwards from that number. Ranges, floors and why the scale swings.Mon, 20 Jul 2026 00:00:00 GMTcaloriesweight lossbasics