Track calories if you have a specific body composition goal; it removes guesswork, though it is not mandatory forever.
Tracking calories is the most reliable way to control body composition because it turns vague eating into measurable data. If you are stuck losing fat or struggling to gain, tracking for a few weeks shows you exactly where you stand versus your target of roughly 300 to 500 calories below or above maintenance. You do not have to track forever, but doing it for a while teaches portion sizes and protein habits you can later run on autopilot.
Most people badly misjudge how much they eat, so a stalled cut or bulk is often a tracking problem. Logging food for a few weeks tells you your real intake and lets you adjust by a known 300 to 500 calories instead of guessing.
Even if you loosen up on total calories, tracking helps you consistently hit 1.6 to 2.2 g of protein per kg, which drives muscle retention and growth. Many people find that the protein habit alone is worth the effort.
Tracking is a tool, not a life sentence. Use it to calibrate, learn portion sizes and your go-to meals, then shift to eyeballing and only return to logging if your progress stalls.
Track calories if you have a specific body composition goal; it removes guesswork, though it is not mandatory forever.
