12×7: Habits, food and energyShort articles on how habits form, what calories and macros are, and how to keep going when a week gets busy.https://12x7.app/learn2026-10-02T13:30:20.902Z12×7https://12x7.apphttps://12x7.app/icon-192.pnghttps://12x7.app/og-image.pngCalories and macros, what are they?https://12x7.app/learn/calories-and-macros-what-are-they2026-10-02T11:29:15.240Z2026-10-02T13:30:20.902ZKilian TynckeEver wondered what a calorie really is, or what protein, carbs and fat each do for you? What determines if you gain or lose weight? Here's a simple guide, plus the most common myths cleared up.