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Adipose tissue retains an epigenetic memory of obesity after weight loss

nature.com

231–240 of 343 posts

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#231
post #127

Earlier quoted context omitted.

I would slightly tweak your last. Different nutrients (vitamins/whatever) also impact your body in specific ways. Not just "makes you healthy" but "causes you to do certain things." Caffeine is the easy example here. This gets back to the "feedback loops" above. There are certainly feedback loops. But you are unlikely to be able to prime any of them by just increasing an input. And increasing output is something you…

We cannot make that claim with relative certainty. We cannot make the opposite claim either, but it is more likely.

Apologies, I see I used the wrong word. I meant to use confidence, not certainty. :(

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#232

Just went trough Yo-Yo. Any good strategies on how to overcome it for good?

Yes, unfortunately. I was a world class yo-yo dieter, bouncing over 100 pounds four times, with many many lesser yos. This is, officially, a type of bulimia. I binge and diet instead of vomit. After more than five decades of that I found stability via sufficient protein, but I've lost my previous knack for losing weight. So now I'm stuck right in the middle of one of my previous yo-yos. It's better here than at the t…

I've gone through stuff like this too. Not sure if it helps, but I believe in you and hope you find strength and peace in your journey. :)

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#233
post #116
post #2

As someone who's struggled with weight loss, and have known others to struggle with it well, I think we colloquially called this "slow metabolism". It always did feel like it was easier to gain weight than lose it, especially fat weight and not muscle weight for me. I was recently sent a video about fat adaptation (basically teaching your body to be better at burning fat) by a very fit friend, but I wonder how much o…

For me, sugar was the reason I couldn't lose weight. I got a CGM (continuous glucose monitor) and got my blood sugar under control, and with very little effort I lost a lot of weight. I use 90% cacao Lindt to control my sweet tooth. 1/2 the bar has 4g of sugar, and I consume it over hours. It also has the side effect of reducing my hunger. If you eat much of 90% chocolate, it makes you feel nausea. The trick is to pu…

Isn't 90% Lindt the worst (of their chocolates) for Cadmium and other heavy metals though?

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#234
post #156
post #116

Earlier quoted context omitted.

For me, sugar was the reason I couldn't lose weight. I got a CGM (continuous glucose monitor) and got my blood sugar under control, and with very little effort I lost a lot of weight. I use 90% cacao Lindt to control my sweet tooth. 1/2 the bar has 4g of sugar, and I consume it over hours. It also has the side effect of reducing my hunger. If you eat much of 90% chocolate, it makes you feel nausea. The trick is to pu…

This also speaks to another point, when trying to lose weight: you must find new things to enjoy.

I was realizing that spicy food can be that.

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#235

Earlier quoted context omitted.

He has surely dedicated a significant portion of his life to his own pet theories on obesity, but to consider him a well-regarded expert is very misleading. He has quite a few claims that are just...ridiculous, and his pop science books have some serious flaws (as reported by actual experts).

While I don't doubt you, it would be helpful if you cited these experts, so people can learn.

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Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#236

Earlier quoted context omitted.

Interesting! Why can't we just remove the triglycerids from the blood before they trigger adipogenesis? Basically we need a form of dialysis.

I have no real or deep knowledge, just some casual pop news reading. Isn't ketosis the state, in which the body switches to fat as the primary fuel?

It is. But it's hard to maintain. I was in ketosis for a month via diet (verified with urine strips twice a day) and it was a struggle to figure out what to eat. Camembert, bacon-wrapped chicken and eggs gets boring after a while. Our civilization runs on carbohydrates, for better or worse.

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#237

Earlier quoted context omitted.

>> But when you lose weight, they don't apoptose Googled for "Adipocyte apoptosis" and oh boy... It does happen, but I don't trust the AI summary. This looks like a deep rabbit hole.

It seems fasting causes Adipocyte apoptosis. It makes sense, there is cell death. I lost 100 lbs fasting over 1.5 years. I did gain some weight back after stopping, but not much. Strangely, where I saw fat return was not where most of it came off.

Yeah, but fasting is extremely unpleasant.

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#238
post #166

Earlier quoted context omitted.

The physical mechanism is mitochondrial uncoupling proteins (UCP). They regulate how much energy is wasted as heat when converting ADP to ATP, determining how efficient one’s metabolism is. When you lose weight, your UCP proteins start wasting less and less energy when producing ATP, which is one of the things that makes dieting so hard. Actually affecting that pathway is largely beyond us at the moment (that’s the b…

Is this similar to what 2, 4 dinitrophenol affects?

Yes, sort of. DNP doesn’t affect uncoupling proteins directly but it moves protons across the mitochondrial membrane, causing more of the energy to be lost as heat as the uncoupling proteins waste more energy to restore the proton gradient.

There are a bunch of such “protonophores” that move protons across membranes and they are universally toxic if they make it to the mitochondria. I don’t known of any compound that actually mediates the UCPs themselves.

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#239
post #202
post #192

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I’d be interested to hear more here - what CGM did you buy? What was your process for monitoring?

The Stelo. 2 for $99. Oddly, it shipped from Amazon but Amazon doesn't sell them. The app is subpar on iOS, but if you give Apple's Health app permission, you can get more data in there. Graphs that have absolute numbers. I think they reason their app doesn't give absolute values (for historical values, they give the current value only), is because it's not a calibrated device. It can't be used to control an insulin…

Does that imply you are paying $99 / month?

Re: Adipose tissue retains an epigenetic memory of obesity after weight loss

#240
post #196

Earlier quoted context omitted.

Similar adaptions occur in muscle. The extent of new muscle fiber development (hyperplasia) is debated, so there are multiples factors influencing how muscle retains some memory of past strength ability. Once you’ve reached a level of physical strength it’s easier to return to that level in the future. This has been a topic of debate in the sports world because past anabolic steroid use could therefore carry benefits…

> Once you’ve reached a level of physical strength it’s easier to return to that level in the future. If you're reading this and you're I was ridiculously skinny and physically weak going into my 20s and I just assumed that was the way I was built. But I got into fitness in my early 20s and packed on quite a bit of muscle and it's genuinely shocking to me how much base-level muscle mass and strength I've retained now…

Same but I was in my 30s.

Two years and I was bigger than anyone I knew unless they also trained hard.

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