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Ketogeek's Podcast

Our Ketogeek podcast is a no holds bar show about health, nutrition, fitness and the low carb lifestyle. In this show we bring in prominent guests in and out of the low carb universe while helping you change yourself and be a beacon of change for others around you! 



Aug 4, 2018

What happens when you eat nothing but fruits? In this episode, we talk to Michael Arnstein or "The Fruitarian" who has utilized a fruit-based diet for 10 years to perform world class marathon runs and endurance sports and try to understand how this is even possible?


Michael Arnstein is a 41 year old elite athlete who lives in New York and Hawaii and utilizes a fruit-based diet to boost his performance. He is also the founder of Woodstock Fruit Festival in 2011. His performance records include:

(run 100+ marathons, best 2:28.12 NYC)
Ironman Triathlons 
(4 time Kona Hawaii Ironman finisher, best 9:38)
Ultra Running 
(50+ ultra distance races, many major event 1st place finishes)
Some highlight performances:
2 time HURT 100 mile winner
Vermont 100 mile winner
Javelina 100 mile winner
100 mile PR: 12:57 (track; 7:46 per mile average)
JFK 50 2nd place 5 hours 50 minutes
Badwater 135 finisher
Spartathlon 153 mile finisher
Time Stamps:

10:10 – How did you get into a fruitarian diet?

17:34 – How do you foster a positive attitude in life?

18:36 – What resources did you use to learn this lifestyle?

21:46 – How do you transition into a fruitarian diet?

25:13 – Is Vitamin B12 deficiency or supplemenation an issue on this diet?

27:50 – What about protein deficiency on this diet?

31:44 – Is there potential science around a fruit based diet?

34:17 – How do you prepare for race day?

36:38 – No drinking water on this diet!?

39:14 – What mangoes are the best in the world?

40:23 – Favorite fruits and fruits you avoid?

43:23 – Salt and do you crave salty foods?

45:09 – What about electrolytes and caffeine?

47:36 – How does the race day fair on a fruitarian diet?

49:09 – What does your physician say about your diet?

50:40 – Are there other athletes who are on a raw fruit diet?

52:07 – Can you make this diet more sustainable?

56:36 – How did this diet impact your social life and relationships?

1:02:00 – Discussion about suffering and compassion

Mike Arnstein Links:

Ketogeek Link: