The Most Precise Fasting Study Ever Conducted Changes Everything
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Top Comments (10)
Several issues with the study I want to note. 1st - It was NOT 200 individuals in the study as you stated in the video. 200 expressed interest, 55 were screened, but only 41 were included in the study. 2nd - a real problem with the conclusions of this study is that they did not control protein intake for both groups. (You mentioned this yourself) The IF-P groups got 35% of their calories from protein while the CR group got only 5-15%. The IF-P groups also got a statistically significant increase in fiber and a reduction in sugar. Without controlling those factors, the results get muddy, because it is fair to say that protein intake (or increased fiber, less sugar) was a variable that contributed to the differences in the groups. 3rd - I didn't see that they did any pre-treatment equivalency testing for the two groups prior to the trial. Random assignment alone does not ensure pre-treatment equivalency for a N=41/39 study. 4th - It appeared mid-report caloric intake was very different for the two groups (IPF=8,720, CR=9,896)/ Obviously, this alone confounds the study. 5th - and maybe most importantly, it was FUNDED by an MLM company that sells cleansing products and protein shakes for IF and actively promotes IF on their website. Additionally, the PI is an employee of that MLM company, along with the other research associates who collected data. That really hurts the credibility of the study imho.
I do an 18 hour fast six day a week I also do a 24 hour fast twice a month. I am a 50 year old male. 5’ 9” . I went from 500 pounds and a year later I’m at 390 and dropping.
Fast until dinner each weekday. Fast until lunch each weekend. Has worked great for me for 1.5 years.
Intermittent fasting worked well for me. But it was when started doing 40 hr fast once a week, that I started feeling amazing, got toned, my FTP on bike increased, muscle mass increased, sleep improved dramatically, my diabetic blood sugars reset to very low, ketones skyrocked. I'm 58 and this is easy. Dinner on Monday (last food 7-8), non sugar based liquids Tuesday, eat at lunch on Wednesday. Always do some level of food tracking - that rebound is sneaky!
I would love all of these studies to include a subgroup of post menopausal women. Thanks for the info as always!!
My Brand FREE Meal Plan: Mediterranean Style with Time-Restricted Feeding and all the timing and optimization comments: http://www.thomasdelauer.com/eatrealfood . Consider it my THANK-YOU for subscribing to my channel and newsletter.
Sounds a lot like FMD, Fasting Mimicking Diet by Valter Longo.
So individual observation. I have done calorie restriction and went from 128kg to 78kgs (282lbs to 172lbs) but it wasn't a lifestyle it was calorie deficit. A few traumas entered my life and my weight went back to 134kgs (295lbs). I tried IF 16:8 and that really didn't work for me, it felt like starving and binge eating. I've moved on to a similar fasting regime to this and it involves 36 hour fasts once per week, with normal eating for the remaining time. I try to stop eating around 2100 and break fast anywhere between 0700 and 1100 the following day. The 36 hour fast has significantly helped me getting past snacking between meals. If I can do a 36 hours water fast, I can last 4 hours between meals without food. This has resulted in a weight reduction of 17kgs (37lbs) over just under 4 months. Nothing spectacular, but steady. The difference is I don't feel as though I've done a lot, other than remove snacking and taking 15ml of vinegar (balsamic, red wine or apple cider) in 300ml of water before I go to bed. I start the month with a 60 hour water fast instead of the 36 hour fast and once a quarter I change the fast for a 84 hour water fast. My BMI was 38.3 and now is c33.6. I'm still carrying a lot of fat as an energy source around daily. Don't know about visceral fat but reducing the snacks has reduced carbohydrate intake and has probably had a beneficial impact on insulin response. Tea consumption is down (don't drink coffee) and water consumption is up and I'm still eating rice/ pasta/ potato.
My comment should have said that my fasting period is 5:30 PM to 11:00 AM the next day.
I've used fasting quite a bit over the last decade, typically as a reset for my gut, metabolism or keytones to start a keto cycle (usually short and for a specific reason). I've found that any fast longer than 24 hrs is actually way easier because you work through the hunger issues in the first day and then really feel fine afterwards. It also totally resets my sugar cravings so that when I come off my fast, I can really be strategic about what I eat without feeling like I need to binge. If I'm after gut health, I can ease back in with gut-healthy food. If I'm going keto, same thing. I'm glad this research helps validate what has worked for me.
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Top Comments (10)
Several issues with the study I want to note. 1st - It was NOT 200 individuals in the study as you stated in the video. 200 expressed interest, 55 were screened, but only 41 were included in the study. 2nd - a real problem with the conclusions of this study is that they did not control protein intake for both groups. (You mentioned this yourself) The IF-P groups got 35% of their calories from protein while the CR group got only 5-15%. The IF-P groups also got a statistically significant increase in fiber and a reduction in sugar. Without controlling those factors, the results get muddy, because it is fair to say that protein intake (or increased fiber, less sugar) was a variable that contributed to the differences in the groups. 3rd - I didn't see that they did any pre-treatment equivalency testing for the two groups prior to the trial. Random assignment alone does not ensure pre-treatment equivalency for a N=41/39 study. 4th - It appeared mid-report caloric intake was very different for the two groups (IPF=8,720, CR=9,896)/ Obviously, this alone confounds the study. 5th - and maybe most importantly, it was FUNDED by an MLM company that sells cleansing products and protein shakes for IF and actively promotes IF on their website. Additionally, the PI is an employee of that MLM company, along with the other research associates who collected data. That really hurts the credibility of the study imho.
I do an 18 hour fast six day a week I also do a 24 hour fast twice a month. I am a 50 year old male. 5’ 9” . I went from 500 pounds and a year later I’m at 390 and dropping.
Fast until dinner each weekday. Fast until lunch each weekend. Has worked great for me for 1.5 years.
Intermittent fasting worked well for me. But it was when started doing 40 hr fast once a week, that I started feeling amazing, got toned, my FTP on bike increased, muscle mass increased, sleep improved dramatically, my diabetic blood sugars reset to very low, ketones skyrocked. I'm 58 and this is easy. Dinner on Monday (last food 7-8), non sugar based liquids Tuesday, eat at lunch on Wednesday. Always do some level of food tracking - that rebound is sneaky!
I would love all of these studies to include a subgroup of post menopausal women. Thanks for the info as always!!
My Brand FREE Meal Plan: Mediterranean Style with Time-Restricted Feeding and all the timing and optimization comments: http://www.thomasdelauer.com/eatrealfood . Consider it my THANK-YOU for subscribing to my channel and newsletter.
Sounds a lot like FMD, Fasting Mimicking Diet by Valter Longo.
So individual observation. I have done calorie restriction and went from 128kg to 78kgs (282lbs to 172lbs) but it wasn't a lifestyle it was calorie deficit. A few traumas entered my life and my weight went back to 134kgs (295lbs). I tried IF 16:8 and that really didn't work for me, it felt like starving and binge eating. I've moved on to a similar fasting regime to this and it involves 36 hour fasts once per week, with normal eating for the remaining time. I try to stop eating around 2100 and break fast anywhere between 0700 and 1100 the following day. The 36 hour fast has significantly helped me getting past snacking between meals. If I can do a 36 hours water fast, I can last 4 hours between meals without food. This has resulted in a weight reduction of 17kgs (37lbs) over just under 4 months. Nothing spectacular, but steady. The difference is I don't feel as though I've done a lot, other than remove snacking and taking 15ml of vinegar (balsamic, red wine or apple cider) in 300ml of water before I go to bed. I start the month with a 60 hour water fast instead of the 36 hour fast and once a quarter I change the fast for a 84 hour water fast. My BMI was 38.3 and now is c33.6. I'm still carrying a lot of fat as an energy source around daily. Don't know about visceral fat but reducing the snacks has reduced carbohydrate intake and has probably had a beneficial impact on insulin response. Tea consumption is down (don't drink coffee) and water consumption is up and I'm still eating rice/ pasta/ potato.
My comment should have said that my fasting period is 5:30 PM to 11:00 AM the next day.
I've used fasting quite a bit over the last decade, typically as a reset for my gut, metabolism or keytones to start a keto cycle (usually short and for a specific reason). I've found that any fast longer than 24 hrs is actually way easier because you work through the hunger issues in the first day and then really feel fine afterwards. It also totally resets my sugar cravings so that when I come off my fast, I can really be strategic about what I eat without feeling like I need to binge. If I'm after gut health, I can ease back in with gut-healthy food. If I'm going keto, same thing. I'm glad this research helps validate what has worked for me.