My current measurements, approximately:
3/26/22 w:58" c:54"
2/20/23 w:55" c:50"
46 year old American male software engineer of Ashkenazic descent. 5'8.5" tall, starting weight 334.1 pounds. 55+ pounds lost since November, 2022 by avoiding starch and sugar. Blogging about the lived experience of becoming not-obese with respect to diet and exercise, not bro-science or products. As you go back in time in this blog you will see an evolution of thought and practice. Each article is a snapshot in time, not a definitive argument.
My current measurements, approximately:
3/26/22 w:58" c:54"
2/20/23 w:55" c:50"
Dr. Varady has done extensive research on alternate day fasting, intermittent fasting, and other strategies, both in mice and in humans.
I complained about "mumbo jumbo" in lay analysis of scientific research before, so I won't engage in it here. Varady did publish a diet book based on her research.
The main thesis is that in alternate day fasting, people don't eat back 175% or 200% of the calories to make up for fast days.
She is featured in Eat, Fast, and Live Longer, the fasting documentary by Michael Mosley. I'm not sure this was part of the dynamic, but I felt a bit like Dr. Mosley stole the fasting thunder from Varady - popularizing his work in his own book, while the basis was entirely her research.
Except for one letter in the BMJ, a cursory search of Google Scholar doesn't return any academic results for these two. I have to admit that that is a little bit scary to me.
On the other hand - alternate day fasting just from the first-person lived-experience feels great. I am sharper and have more energy on fast days. Psychologically I feel like I am doing something for my health which helps me, despite a BMI over 40, hold my head up high.
Alternate day fasting is helping me to lose some weight, at least in the short term. There are side effects though, constipation and at times diarrhea. It would be nice to know, through research, that I'm not giving myself colon cancer, or doing something else injurious to my body.
There are other luminaries in this community who vocally support fasting as an option beneficial to health and longevity like Peter Attia MD. However, again, no evidence produced.
On the subject of bullshit... look at the ingredients in some of these pre-workout mixes.
You would get the same effect with a cup of coffee and a mini snickers bar.
(I got the idea of the snickers bar from the 6-time winner of the CrossFit games)
Body habitus:
The physique or body build. For example: "The metabolic complications most commonly reported (with HIV infection) are hyperlipidemia, hyperglycemia and altered body habitus."
The term "body habitus" is somewhat redundant, since habitus by itself means "physique or body build."
from: rxlist.com
Fothergill, Erin, et al. "Persistent metabolic adaptation 6 years after “The Biggest Loser” competition." Obesity 24.8 (2016): 1612-1619.
Read it here
Look, I just don't know what the lived-experience of a morbidly obese person is with the resting metabolic rate (RMR) of a morbidly obese person, versus the same person with an RMR of someone who is reasonably trim and fit. Does one feel energized, and one lethargic on a certain number of calories? I don't know.
All of that aside. (I mean it, let's forget entirely about metabolism right now as if it is the health equivalent of the financial practice of trying to time the market.)
What resources went into the 30-week weight loss of these contestants? What resources went into their weight maintenance after the show ended?
During the 30 weeks:
My intention yesterday was to fast for 36 hours, but I broke the fast at 24 hours. I had a meeting a couple of hours away today, and didn't want to risk having the runs (a side effect that I hear is common in fasting) on the expressway.
Someone I respect said that if you are going to break a fast, and have made it to 24 hours, then that's a real accomplishment -- not to worry.
I don't think this is going to completely derail my program, but we will see over the next few days. I'm fasting now and it feels approximately like it did before I "fell off the wagon".
--edit: I'm right back on it!
Welp, I got through my first 6 fasts on the 3-day-a-week 36-hour fasting program.
This is what my weight trend looks like (technically the two local minimums are at the same point and represent the weights at the weeks end of fasting before the weekend. I'm not too worried though, because I feel you _can_ put stock in the moving average.):
There are a bunch of studies on Google Scholar by these two with generally the following conclusion:
"There is a general perception that almost no one succeeds in long-term maintenance of weight loss. However, research has shown that ≈20% of overweight individuals are successful at long-term weight loss when defined as losing at least 10% of initial body weight and maintaining the loss for at least 1 y. The National Weight Control Registry provides information about the strategies used by successful weight loss maintainers to achieve and maintain long-term weight loss. National Weight Control Registry members have lost an average of 33 kg and maintained the loss for more than 5 y. "
--edit: Got on the exercise bike for 20 minutes this afternoon. Felt pretty good.
Gary Taubes is the famous author of Good Calories, Bad Calories, one of the first books since the Atkins diet to look at obesity, carbohydrate, and insulin.
Dr. Jason Fung is a Canadian nephrologist who has popularized intermittent fasting as a diabetes treatment and weight loss method.
There's a lot to this video, but I pulled out a couple of pieces that I found interesting and paraphrased them below:
..
"Why did the plane crash?"
"It was a lift imbalance issue."
The thermodynamic theory of weight loss is "Calories in, calories out", which Fung and Taubes characterize as "not even wrong," meaning "irrelevant." The issues for them is not why the plane's down force exceeded it's lift, but what was going on with the pilot, the computer systems, and the maintenance of the plane that caused it to crash. They will consistently talk about insulin in this talk and what Taubes calls the "hormonal hypothesis for obesity."
..
"When you eat protein and fat, there are well known satiety hormones that get activated [omitted consciously, I don't want this to get into "bro" science], which tell you to stop eating. If you are eating foods that tell you that you are full and don't want to eat more, that's a good thing. If you are eating a bagel with jam, pure carbohydrates, a slice of toast and jam, you aren't activating those satiety signals. That's why at 10:30 you are looking for a low-fat muffin."
One of my pet issues is that I wonder whether you have to be in ketosis to get the benefit of a low carb meal. Meaning, if you eat pancakes at 8am, is there any benefit from eating low-carb for lunch? If you think about the waves of hunger that come and go that Fung talks about in other places, maybe it makes sense that on some level each cycle of hunger / feeding / satiety is a little bit atomic. If you eat low carb at a meal, you are more likely to eat less energy, have less of an insulin response, and shunt energy into fat, at that meal. This is me, and not Dr. Fung though, so take with a grain.
Three things really helped:
1) I read a Meagan Ramos podcast where she talked about going through chemo, and then subsequently treating fasting like a treatment rather than a diet. "I wouldn't miss a chemo session to have lunch with my girlfriends!"
2) In the same podcast Meagan suggested a bit of non-sugar pickle juice as a substitute for bone broth on the day. This if feeling like electrolytes are out of balance, or just generally miserable. It is easy to stomach and kept me feeling pumped up throughout the day.
3) I saw a youtube video with a Registered Dietician going through fasting. She suggested an electrolyte water, which kept me hydrated without worrying too much about it.