Lipoly
Your Fat Loss Sprint Guide
The marathon has an 18% dropout rate. The sprint has 3%.
You're not failing because you lack willpower. You're failing because there's no finish line.
Lipoly
Your Fat Loss Sprint Guide
You're not failing because you lack willpower. You're failing because there's no finish line.
Calorie counting works. The science is sound: sustained caloric deficit produces fat loss. The problem is not the method. It is the timeline.
A 400–500 kcal daily deficit takes 4–6 months to produce meaningful fat loss. That is 120–180 days of daily restraint, with minimal visible feedback in the early weeks, no defined endpoint, and the constant awareness that you could eat more right now. The Purcell RCT (The Lancet, 2014) documented an 18% dropout rate in the gradual dieting group. That's not failure. That's a timeline problem.
The Fat Loss Sprint compresses the same total deficit into 14–28 days. Visible results arrive within the first week. The finish line is known from day one. And the protocol — calculated macro targets, structured training, scheduled refeeds — removes the daily decision-making that depletes willpower over time.
| Standard Calorie Counting (CICO) | Lipoly Fat Loss Sprint | |
|---|---|---|
| Deficit | 300–500 kcal/day | ~1,000–1,800 kcal/day (from body comp calculation) |
| Timeline | Months to years | 14–28 days, defined endpoint |
| Adherence driver | Willpower over time | Defined endpoint + visible early results + protocol structure |
| Protein guidance | Often insufficient (RDA: 0.8 g/kg) | 2.2–3.0 g/kg LBM — sprint-specific and lean-mass protecting |
| Protocol structure | Track and stay under target | Phases with calculated targets, training, refeeds, recovery |
| Success rate | 50% hit target (Purcell 2014) | 81% hit target (Purcell 2014) |
| Dropout rate | 18% (Purcell 2014) | 3% (Purcell 2014) |
| Recovery phase | None | Mandatory 14-day Maintenance Phase |
| Defined finish | No | Yes — day 14, 21, or 28 |
Purcell et al. (The Lancet Diabetes & Endocrinology, 2014) randomised 200 adults with obesity to either a rapid weight loss protocol (structured VLCD) or gradual caloric restriction (standard CICO). After the active phase:
The rate at which you lose weight does not determine how much you regain. What determines long-term results is your post-diet behaviour — which is what the mandatory 14-day Maintenance Phase in Lipoly is specifically designed to build.
Nackers et al. (2010): Fast initial weight losers had better long-term maintenance outcomes than slow or moderate losers. Visible progress reinforces behavioural commitment — the opposite of what the slow-and-steady assumption predicts.
Astrup & Rössner (2000): Greater initial weight loss was consistently associated with better long-term maintenance across weight management program data.
The most common objection to rapid fat loss: "You'll lose muscle." The evidence is more nuanced.
Lean mass loss during caloric restriction is determined by two variables — protein intake and resistance training stimulus — not by the speed of the deficit. When protein is adequate and training is maintained, rapid and gradual approaches produce similar lean mass outcomes (Longland et al., 2016; Mettler et al., 2010).
The Fat Loss Sprint sets protein at 2.2–3.0 g/kg lean body mass and requires 2x/week resistance training. Both are non-negotiable. Both are tracked in the app. The lean mass protection is built into the protocol.
See your numbers
Sprint level, calculated macros, and a recommended duration — based on your body composition.
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