How low can my target go?

Not below a floor we compute from your own body — the higher of a fixed minimum and your estimated resting energy need (BMR). It is never below what you burn lying still, whichever goal or pace you choose, and a custom target you type in is raised to it rather than saved as entered. The floor is enforced on our servers, not just in the app, so it holds even for a modified client.

One consequence worth knowing: because the starting maintenance estimate is deliberately conservative, the faster pace options are often unavailable at first. As Gretl measures your real maintenance from your own logs and weigh-ins, usually within a couple of weeks, they open up.