Intermittent Fasting, Set-Point and Leptin

March 17, 2010

I ranted a little about diet approach, leptin and the set-point theory on bodybuilding.com. Figured it could make for a decent post here. I added some extras in the form of a short review on the effects of intermittent fasting on leptin.
—
Short background on leptin and set-pointLeptin is a master-hormone with downstream effects on other hormones related to metabolism (T3/T4, neuropeptide-Y, epinephrine, among many others).
In the short term leptin is regulated by under-and overfeeding. More to the point, anything that causes fat mobilization from adipose tissues will drop leptin; this is basically unavoidable.
In the long-term, leptin is regulated by total amount of fat mass. A drop in leptin affects the other hormones negatively and vice versa. Low leptin equals an increase in hunger and metabolic rate, much like high leptin equals a decrease in hunger and increase in metabolic rate.
Generally speaking, lean people have low levels of leptin while obese […]

Original post by noreply@blogger.com (Martin Berkhan)

Be Nice and Share!

Filed under: Fitness

Warrior Fit Testimonials

First, I want to say thank you for convincing me to do Tabata! I was struggling to lose weight and Finally I found something that helped! I really appreciate your coaching! - Craig T.

Ever since I was convinced to do Tabata I have seen huge results, I lost 6 pounds and gained energy in the first 3 weeks. I have been working out for 3 months before I decided to do Tabata and I struggled to lose weight. At first I thought "How am I losing weight by bringing my heart rate up then cooling down then bringing it up again?" I don’t know how it works but it does! Thank you!! - Theresa F.

The first day of Tabata, I wondered WHAT AM I DOING - I AM 56 !! Five weeks later I knew that it was what I needed. I learned that I could push myself well beyond my comfort zone and feel good later. I have a marked improvement in physical as well as emotional endurance. - Lyn C.

When I was first told about Tabata I was very excited from the word go, however that excitement stemmed from the fact that I had no clue what it meant. I missed the first week of class b/c I was traveling for work so when I came in during the 2nd week I had some making it up to do. It was hard at first b/c my body wasn't used to working out at such a fast pace, but once I got into a rhythm I started to feel very good. These classes are no joke. If you stick with it you will leave there feeling stronger, healthier and overall better about yourself and what you've accomplished. I would recommend these classes to anyone. Darrin is a great trainer and he'll keep you going with his energy. - Jami L.