Browser-only. Clearing your browser data clears the log — that's the privacy trade.
Use the GLP-1 calculator for exact numbers, or set them here:
Completely — the log lives in your browser only (localStorage). Nothing is uploaded; there are no accounts.
Protein: 1.2–1.6 g per kg of body weight — the GLP-1 calculator computes it exactly. Water: 2–3 L.