Discussions frequently reference specific figures such as 69 kcal/kg/day and compare them to practical fat loss scenarios, with commenters analyzing the implications for fasting, diet, and body composition. The tone shifts from curiosity to analytical, emphasizing the relevance of the research for weight management debates.
AgreementModerate agreement
Most discussions acknowledge the study's findings about the maximum energy transfer rate from fat, with some citing specific numbers like 69 kcal/kg/day, aligning with research data.
InterestHigh interest
Participants show high curiosity about how the research applies to fat loss strategies, fasting, and weight management, indicating strong interest.
EngagementHigh engagement
Posts reference detailed calculations, theoretical models, and real-world applications, demonstrating active engagement with the study’s implications.
ImpactModerate impact
While some believe the findings are significant for understanding fat loss limits, the overall consensus suggests moderate impact on current weight loss concepts.
Abstract in brief
The study establishes a limit of 29,025 kJ/kg/day on the rate at which human fat stores can transfer energy during hypophagia, based on experimental data with underfed individuals engaging in moderate activity.
When dietary intake surpasses this energy transfer limit, the body's fat-free mass (FFM) decreases immediately, but smaller deficits do not cause significant FFM loss; a mathematical model is developed to differentiate these scenarios and describe the FFM decrease when fat mass is in its energy transfer mode.
It is shown that the resting metabolic rate declines linearly with FFM at a rate of 24.925 kJ/kg/day during hypophagia, but this rate differs from other studies because individual metabolic differences are considered, emphasizing variability among people.]
@real_lord_miles I've done a 25-day water only fast. You have to sufficient excess body fat to do it. I stopped because I got bored.
This paper is very important:
https://t.co/6LmUsXDBRC
Aug 29, 2025 · 17 likes · 5,855 followersView post →
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Fiora Esoterica
@fioraesoterica · X
saw an interesting hypothesis the other day and vaguely wondering how much water it holds
the idea is basically:
1) according to https://t.co/qZ9JmZeEz5 and other sources, there is a real-world maximum rate of free fatty acid liberation from adipose tissue
Hoy vamos con un hilo muy importante a la hora de calcular nuestro máximo déficit posible sin perder masa muscular, para ello nos basaremos en los siguientes estudios:
https://t.co/07b957kirr
https://t.co/Dy0J9GA2F2
https://t.co/mk9lHqixCr
Nov 3, 2020 · 15 likes · 3 shares · 1,750 followersView post →
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Richard Boyd
@rchrdbyd · X
This seems to align with the research paper's results. (assuming I did the math right to convert KJ/kg/d to KCal/lb/d)
https://t.co/P1YKu4mfyT
Jan 31, 2021 · 6 likes · 6,675 followersView post →
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disco_trooper
@disco_trooper · X
@AJA_Cortes This study says you can theoretically lose up to 69 kcal per kg of fat per day, which could come out to much more than 2lbs of fat loss per week in obese people. https://t.co/MXcr7KnrHk
The Swiss Junior Bodybuilding Champion Ramon Limacher discusses his progress, compares his muscle mass to Enis Rexhepi, and shares insights on competing in 2021 SNBF and professional classes. We also explore chances to…
This video clarifies misconceptions about water fasting when body fat is under 15%, discussing potential muscle loss and explaining the scientific studies on energy transfer limits and metabolic responses during…
Dec 17, 2025 · 2 likes · 49,543 followersView post →
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WP
@wiktorppp · X
@Alojzypopiolek2 @tomzel @th30wlm4n Imo może być. Sporo zależy też od tego ile trzymało się wcześniej tłuszczu. Teorytycznie dopóki nie przekracza się około 70 kcal/kg tkanki tłuszczowej organizm nie powienin używać innych źródeł (mięśni). Praktycznie polecam nie schodzić poniżej bmr.
https://t.co/Cv2whfRvl9
@real_lord_miles I've done a 25-day water only fast. You have to sufficient excess body fat to do it. I stopped because I got bored.
This paper is very important:
https://t.co/6LmUsXDBRC
Aug 29, 2025 · 17 likes · 5,855 followersView post →
DT
disco_trooper
@disco_trooper · X
@AJA_Cortes This study says you can theoretically lose up to 69 kcal per kg of fat per day, which could come out to much more than 2lbs of fat loss per week in obese people. https://t.co/MXcr7KnrHk
"A limit on the maximum energy transfer rate from the human fat store in hypophagia is deduced from experimental data of underfed subjects maintaining moderate activity levels and is found to have a value of (290± 25) kJ/kg d"
#diet #weightloss
https://t.co/WumBrkeZZw
@TheosisQuest This is the study that shows IIRC that you can pull 30 cals from fat for every lb of fat you have.
https://t.co/6LmUsXD424
Nov 14, 2024 · 1 like · 5,855 followersView post →
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exfatloss
@exfatloss · X
@scromblesveng @rf121rf @tarheals31 Yea, each pound of body fat can give off around 32kcal/day according to this study: https://t.co/nAcYwrS0c7
Hence the last few pounds you're really running on fumes.
Nov 20, 2023 · 2 likes · 6,853 followersView post →
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CHAIRMAN ANON
@chairmanxxx · X
@BowTiedUM Not true. Pound of fat is 3500 calories. You can burn max 31 calories per lb of body fat per day. Excessive fasting leads to loss of muscle mass.
https://t.co/nlZrRYSswK
I'm a big keto & fasting fan but this study answers so many questions
https://t.co/N2Laj8eLbj
There is an actual recorded limit on how much energy you can metabolize from your existing fat stores
69kcal/kg/day
@Mikejulian26 @KetoCarnivore @exfatloss @raphaels7 @DrEenfeldt @tednaiman @luis_villasenor The Alpert paper is the latest I'm aware of estimating the amount of energy that can be released from fat without overly depleting protein stores (it's quite high for people carrying a lot of fat).
https://t.co/sGZX2T11bR
Mar 23, 2023 · 2 likes · 10,996 followersView post →
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LeonBedracPhD
@LeonBedrac · X
When it comes to accelerated fat loss without loss of fat-free mass, I keep coming back to Alpert's 2005 theoretical paper. Imagine you are a man who weighs 75 kilos and has 20% or 10% body fat, respectively. You want to decrease y…https://t.co/9iXaI8ysEJ https://t.co/z8Mt8R5iAf
Mar 8, 2023 · 1 like · 1 share · 45 followersView post →
How much fat can you lose per week? Good question. Like I said there isn’t an exact figure. The best we have so far is data from underfeeding studies. It’s not perfect but as my grandpa used to say “You dance with the girl who brung ya”.
https://t.co/MslsLjJOVz
@MichelleCardel @MartinNutrition Seymour Alpert I meant. Sorry, I knew it sounded wrong when I typed it. Here is the paper. The formula is basically a way to arrive at the figure. If that makes sense.
https://t.co/MslsLjJOVz
@JohnSpeakman4 @KevinH_PhD What is you take on this hypothetical limit on fat mobilisation? https://t.co/UHG9kjw5Xk
To me it sounds low. There is way higher fat oxidation during exercise sometimes and didn't you show higher fat loss in the biggest loser participants Kevin?
Hoy vamos con un hilo muy importante a la hora de calcular nuestro máximo déficit posible sin perder masa muscular, para ello nos basaremos en los siguientes estudios:
https://t.co/07b957kirr
https://t.co/Dy0J9GA2F2
https://t.co/mk9lHqixCr
Nov 3, 2020 · 15 likes · 3 shares · 1,750 followersView post →
FE
Fiora Esoterica
@fioraesoterica · X
saw an interesting hypothesis the other day and vaguely wondering how much water it holds
the idea is basically:
1) according to https://t.co/qZ9JmZeEz5 and other sources, there is a real-world maximum rate of free fatty acid liberation from adipose tissue
Maximum Fat Loss Calculation Results | PDF | Calorie | Nutrients
News
10.1016/j.jtbi.2004.08.029. Epub 2004 Dec 8. PMID: 15615615. 2. Hall KD. Body fat and fat-free mass inter-. relationships: Forbes's theory revisited. Br J Nutr.
Diet bawah 300 kalori/hari. Apa risikonya? : r/Fitness - Reddit
Reddit
... Biology](http://dx.doi.org/10.1016/j.jtbi.2004.08.029). Diorang ada benda macam kajian dan bukti, bukan cuma ilmu internet je. salmontarre. • 15 ...
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