Stubborn fat despite dieting? Learn how insulin, cortisol, thyroid, and leptin can stall weight loss and the evidence-based steps to get back on track.
Hormones function as the body’s metabolic regulators. When they are imbalanced, even strict diets and regular workouts may not deliver results. Insulin, cortisol, thyroid hormones, and leptin each have powerful effects on appetite, energy use, and fat distribution.
Persistently elevated insulin, usually a result of insulin resistance, makes it harder to mobilise stored fat and easier to store energy after meals. Clinical research shows that insulin resistance is strongly associated with weight gain and metabolic syndrome. Improving insulin sensitivity through diet, physical activity, and better sleep can restore the body’s ability to access stored fat.
Chronic stress and disrupted sleep raise cortisol levels, which are linked to more abdominal fat and metabolic syndrome. This type of fat distribution is particularly harmful for long-term health. Managing stress and prioritising restorative sleep are essential steps to reduce cortisol and support fat loss.
The thyroid gland regulates how quickly your body burns energy. Hypothyroidism lowers energy expenditure and may contribute to weight gain. Treating hypothyroidism can improve energy expenditure, but diet, exercise, and lifestyle remain critical for long-term weight control.
Leptin normally tells the brain when energy stores are sufficient. In obesity, leptin levels are high but the brain does not respond properly – a phenomenon known as leptin resistance. This leads to persistent hunger and difficulty maintaining weight loss. Evidence shows that lifestyle interventions, rather than external leptin therapy, are the best way to improve leptin sensitivity.
If you feel stuck despite consistent effort, hormones may be creating resistance. Identifying and addressing these imbalances can reset your body’s ability to lose fat effectively. Next step: Schedule an assessment at Ido Hair & Aesthetics to review metabolic markers and build a hormone-savvy plan for sustainable results.