Lipoly
Your Fat Loss Sprint Guide
The Fat Loss Sprint addresses the insulin resistance at the core of PCOS fat storage — with a protocol built on 50+ years of clinical research.
"Speak with your doctor or endocrinologist before starting any new diet protocol, particularly if you have PCOS and take medications like metformin, spironolactone, or hormonal treatments."
PCOS is characterised by elevated androgens, irregular ovulation, and — in the majority of cases — insulin resistance. Insulin resistance means the body requires more insulin to manage blood glucose, which promotes fat storage, particularly around the abdomen, and makes caloric restriction less effective per unit of effort.
Standard dietary advice (moderate deficit, Mediterranean-style eating) can work for PCOS — but slowly. The insulin resistance means that even in a deficit, fat mobilisation is blunted compared to insulin-sensitive individuals.
The Fat Loss Sprint creates a deep enough deficit to overcome this resistance: very low caloric intake produces rapid glycogen depletion, ketosis, and insulin suppression — which directly counteracts the fat-storage drive of insulin resistance.
(NICE, 2014; Kiddy et al., 1992; Clark et al., 1995)
Rapid fat loss achieves the 5–10% threshold faster than gradual approaches — which matters for PCOS because the hormonal improvements (cycle restoration, androgen reduction) are dose- and speed-dependent in the early phase of weight loss.
Visceral fat — the fat most closely linked to insulin resistance in PCOS — is preferentially mobilised during severe caloric restriction (Thomas et al., 2018). The FLS targets visceral fat directly through its very low calorie design.
The Fat Loss Sprint's protocol aligns well with the physiological profile of PCOS:
| Common PCOS Advice | Lipoly Fat Loss Sprint | |
|---|---|---|
| Deficit depth | Moderate (500 kcal/day) | Deep (1,000–1,800 kcal/day) |
| Carbohydrates | Low-GI, moderate | Very low (non-starchy vegetables only) |
| Protein | Encouraged | 2.2–3.0 g/kg LBM — calculated |
| Insulin suppression | Partial | Strong — deep ketosis |
| Speed to 5–10% loss | Weeks to months | 14–28 days |
| Training | Encouraged | 2x/week strength — required |
| Defined protocol | Rarely | Yes — phases, refeeds, recovery |
Most women with PCOS will fall into Sprint Level 2 or Level 3 (body fat percentage 25–35% or above 35%). The app calculates this automatically from your stats during setup. If you're managing PCOS and have been prescribed metformin or other insulin-sensitising medications, speak with your prescribing doctor before starting — your medication doses may need adjustment as your glucose and insulin levels improve during the sprint.
Always speak with your doctor or endocrinologist before starting, particularly if you take PCOS medications. Lipoly is a self-guided informational tool, not a medical intervention.
See your numbers
Sprint level, calculated macros, and a recommended duration — based on your body composition.
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