You are currently viewing Ep.  #1015: Give Tinsley a Fast for Health and Longevity

Ep. #1015: Give Tinsley a Fast for Health and Longevity

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Can you live longer by changing your diet?

There are many claims out there about intermittent fasting and its effects on health and longevity. Some people say that you can extend your life just by adjusting the time window of when you eat each day.

But is that true? What does science say about fasting in humans and its effects on how long you will live?

Instead of looking into it myself, I invited an intermittent fasting expert, Dr. Grant Tinsley, to examine the topic. Grant has been on the podcast before discuss techniques for measuring body fat, but as a scientist involved in many studies on time-limited nutrition in athletes, he is the perfect guest for this topic.

Grant is an Associate Professor at Texas Tech University, the Director of the Energy Balance & Body Composition Laboratory, and a Certified Strength and Conditioning Specialist (CSCS) and Certified Sports Nutritionist (CISSN). He has over 150 peer-reviewed journal articles and abstracts, with his major research interests being sports nutrition strategies, body composition assessment techniques, and intermittent fasting. in the active population.

Grant and I chatted about . . .

  • The role of mTOR, AMPK, and sirtuins in aging
  • Metabolic age versus chronological age
  • Rat metabolism and why we can’t apply animal research to humans
  • Autophagy, how long it takes to ramp up fasting, and whether it matters
  • Who should try fasting and who can benefit
  • The effects of fasting on muscle retention
  • And so on. . .

So, if you’re interested in the science behind the effects of fasting on longevity and how seriously you should be making bold claims about longevity and timed feeding, check it out. this podcast and let me know your thoughts!


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5:45 – Is intermittent fasting necessary for overall health and longevity?

10:11 – What are some of the things that people look at in research and extrapolate?

16:05 – What are your thoughts on the validity of metabolic aging?

22:36 – What are the benefits of fasting?

25:44 – What are some reasons I should consider fasting?

27:26 – What are your thoughts on fasting to increase longevity?

35:23 – How long should you fast to make a significant difference in health?

41:25 – Does fasting cause muscle loss?

49:03 – What are your thoughts on the importance of reducing mTOR to increase longevity?

1:01:30 – Where can people find you?

Show Mentioned:

Try Whey+ risk-free today! Go to and use coupon code MUSCLE to save 20% or get double reward points!

Grant’s Instagram:

Grant’s website:

What did you think of this episode? Got something else to share? Let me know in the comments below!

The post Ep. #1015: Grant Tinsley on Fasting For Health and Longer Life appeared first on Legion Athletics.

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