Thursday, June 30, 2022


The popularity of fasting has surged in recent years, although there are myriad approaches to restricting food intake to promote good health.  One system, known as ProLon, involves mimicking the effects of fasting, by allowing small meals to be consumed during the diet.  

I have followed the progress of this fasting mimicking diet (FMD) ever since I took part in a clinical trial in 2013, to explore the regime’s feasibility and safety. In this interview Dr. William Hsu, Chief Medical Officer with L-Nutra, the company that markets diet, explains the latest science behind periodic fasting nutrition and the differences between the various protocols that are often labeled as ‘intermittent fasting.’

The Live Long and Master Aging podcast, a HealthSpan Media LLC production, shares ideas but does not offer medical advice.  If you have health concerns of any kind, or you are considering adopting a new diet or exercise regime, you should consult your doctor.

Connect with Dr Hsu and L-Nutra: Bio | Website | Instagram | Facebook | Twitter | TikTok

Read a transcript 

Listening options: Apple PodcastsAudibleStitcherTuneinSpotifyPandora PodcastsGoogle Podcasts

Related LLAMA interviews

Additional reading

  1. Early results of the 2013 fasting mimicking diet trial that Peter Bowes took part in as a volunteer.
  2. The experimental diet that mimics a rare genetic mutation – Peter Bowes has been on a new diet that claims to guard against disease and slow aging. Then he met a group with a mutation that lets them eat what they want while enjoying the same protection.
  3. The Longevity Diet by Prof. Valter Longo

Affiliation disclosure: The LLAMA podcast receives a small commission when you use the code LLAMA for purchases at – it helps to cover production costs and ensures that our interviews remain free for all to listen. is offering a 10% discount on its range of products – NAD boosters, Sirtuin activators, senolytics and more. Use the code LLAMA at checkout. Any health queries can be answered by emailing the team at  

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