The short version: HabitSync shows you patterns in your own numbers. It doesn't practice medicine, and nothing here replaces a conversation with someone who does.
HabitSync's weight forecasts, BMR/TDEE estimates, calorie targets, and correlation insights are estimates, not medical advice, a diagnosis, or a substitute for guidance from a doctor, registered dietitian, pharmacist, or therapist. That matters most if you have a medical condition, take medication, or are pregnant or breastfeeding.
Calorie balance is the biggest single lever for most people, and it's what the calculator and forecast are built around. But it isn't the only thing moving the number on the scale. Sleep quality, stress and cortisol, hormones (thyroid function, PCOS, menopause), certain medications (some cause weight gain or loss as a side effect), muscle mass and body composition, water retention, menstrual cycle, age, and underlying medical conditions can all shift your weight independent of what you ate that week. Two people eating identically can lose weight at different rates for reasons that have nothing to do with willpower or math.
Treat every number here as a starting point for your own experimentation, not a guarantee. If your real-world results consistently don't match the estimate, that's useful information to bring to a doctor or dietitian - it isn't a sign you're doing something wrong.
The insights that surface things like "mood averages higher on gym days" are correlations found in your own logged data - they describe a pattern, not a proven cause. A pattern can exist for reasons other than the one that seems obvious, and small sample sizes (which every insight discloses) can produce patterns that don't hold up over time. Interesting, worth noticing, not a diagnosis.
Medicine tracking, dosage logging, and the before/after-onset chart are organizational tools to help you and your prescriber have a more informed conversation - they do not replace medical supervision. Never start, stop, or change a dose based on anything in HabitSync alone. If a photo-scanned label looks wrong, verify it against the actual packaging before logging it.
If you have a diagnosed medical condition, are on medication, are pregnant or breastfeeding, are under 18, or have a history of disordered eating, talk to a doctor or registered dietitian before using any calorie target or weight-loss timeline from this app or its free calculator.