Clinical studies show fasting-mimicking reduces body fat, including abdominal and trunk fat, while helping preserve lean mass—an important distinction, because healthy weight loss isn’t simply about losing pounds; it’s about where that weight comes from.

Origin Fast participants typically lose 4lbs to 8lbs, with personalised nutrition and ongoing guidance to build on their results.

As fasting signals increase, your cells shift away from growth and towards maintenance — activating pathways associated with autophagy, the body’s natural process for breaking down and recycling damaged or unnecessary cellular components. Fasting can support a healthier inflammatory response, giving your body a chance to focus on cellular maintenance and renewal.

Researchers have studied fasting-mimicking for its positive effects on several markers of metabolic health, including blood glucose, insulin sensitivity, blood pressure, cholesterol, and triglycerides.

Together, these shifts may help your body manage blood sugar and fats more effectively, improve metabolic flexibility and support long-term cardiovascular and metabolic health — benefits that extend far beyond the number on the scales.

Fasting gives you a rare opportunity to step outside the constant cycle of eating, snacking and thinking about food. Research suggests fasting can influence appetite-regulating hormones, metabolic signalling and our responses to hunger, while many people report a noticeable reduction in ‘food noise’.

Combined with Origin Fast’s expert guidance and mindset support, those five days create space to recognise genuine hunger and fullness cues, understand what drives your eating habits and build a more intentional relationship with food — changes you can carry into everyday life.

Emerging research suggests that fasting periods can reshape the gut microbiome and activate pathways involved in gut maintenance and regeneration.

The effects of gut health may extend beyond digestion via the gut–skin axis. Over the years, many participants have reported positive changes in the look and feel of their skin during and after their fasting experience.

Watch our participant case study to see one participant’s experience.