Looking for a different approach to losing weight — and keeping it off?

" I came down from 63.5kg to 60kg, which is my fighting weight. Really loved being part of this journey. I’ve learned so much and now question what I put into my body. Changed habits for sure." Terri

Fasting-mimicking, the approach Origin Fast uses, helps you lose body fat.

Research led by Professor Valter Longo has shown that repeated five-day fasting-mimicking cycles can reduce body weight, total body fat and fat around the trunk. 

More recent analysis has also found reductions in visceral fat — the harmful fat stored around the abdominal organs — and liver fat following repeated cycles.

But weight loss is only part of the story. Origin Fast helps you better understand your hunger, appetite and habits, so maintaining your results becomes easier long after the fast ends.

We service our cars, check our finances and keep an eye on our homes. Why wouldn’t we do the same for our health?

My benefits of the fast: Weight loss, bloating gone, hunger signals returned, digestion better, brain fog gone, more mindful eating, habits kicked, slower pace, calmer, showed myself more compassion. - Sarah

Fasting-mimicking research suggests that repeated five-day cycles can reduce risk and influence markers we don’t necessarily notice day to day — from blood pressure and blood sugar to insulin resistance, liver fat, and other markers associated with metabolic health.

That’s how Amanda, Origin Founder, approaches her own fasts: a regular health MOT — five days to step away from everyday habits, check in with her body and invest in the health she wants for the years ahead.

Prediabetes is a warning sign — but it can also be an opportunity to act.

"My sugars are looking great, mostly level with a few higher moments, and I've lost 10 lbs. … I feel much lighter, and the aches and pains are much better! - Wendy"

Research into fasting-mimicking diets has found improvements in blood glucose and insulin resistance, with one study finding that participants with prediabetic fasting glucose returned to the normal range after three monthly fasting-mimicking cycles.

The research also extends to type 2 diabetes. In a 12-month randomised controlled trial, regular five-day fasting-mimicking cycles alongside usual care improved HbA1c and reduced the need for glucose-lowering medication in adults whose diabetes was managed with diet and/or metformin.

It’s not just about what happens over five days — it’s about improving the metabolic health that shapes your future.

Your gut responds not only to what you eat, but also to when you eat.

"I lost 5 lbs, but that wasn’t my goal. I wanted a reset of internal health, and my body just feels clearer inside. Thanks to the great team. Lots to carry forward from this week." - Emma

Emerging research suggests that periods without food may give the digestive system a different rhythm. 

In a recent human study, people with IBS following time-restricted eating experienced a significant reduction in IBS symptom severity, with improvements seen across different types of IBS.

The science of fasting goes much deeper than the surface. Looking good on the outside starts with what’s happening on the inside.

"I feel clearer in my head and a general sense of lightness in my body, physically and emotionally. It's been a reset I really needed for myself." - Melanie

Research into fasting-mimicking diets is exploring their potential to support healthy ageing and metabolic health. In a 2024 analysis of two clinical trials, three monthly five-day fasting-mimicking cycles were associated with improvements in metabolic and immune-related markers and an estimated reduction in biological age of around 2.5 years, on average.

Periods of lower energy and protein availability encourage the body to shift toward maintenance and repair processes. 

Sometimes it’s not about knowing what to eat — it’s understanding why, when and how you eat.

"I’m down 6lbs with one more day to go, and I've also had a really welcome drop in food noise, knowing what I planned to eat. Thank you so much, as always." - Gillian

Research shows that behavioural tools, including self-monitoring, goal setting, feedback and social support, can support meaningful changes in eating behaviour and weight management, with personalised approaches showing particular promise.

That’s why Origin Fast goes beyond the five-day fast. Through daily expert guidance, mindset support and an ongoing community, we help you understand your hunger, habits and triggers — and give you the tools to turn those insights into healthier patterns for everyday life.