Yes.
Muscle mass is significantly heavier per unit of volume than fat is. Around 15-20% heavier. Muscles also fill in around the bones first instead of on the surface of the skin like subcutaneous fat.
this post was submitted on 13 Aug 2023
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Asklemmy
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To add on, this exact scenario illustrates why BMI is not always the best measure of health, because it only looks at height and weight. Measuring waist circumference and body fat percentage should give you a better-rounded picture of how youβre doing
While true, 95% of the people saying BMI doesn't work well are coping fatties.
Let me add- not only are they mostly coping fatties, they co-opted truths for the other end of the spectrum (extreme low BMI) and started claiming the same for themselves. Yes. BMI is a poor indicator of health in weight lifters. 500 lb people do not share that outlier.
I say this as a fat person who will likely die fat, who feels no guilt or shame or any negative internalized anything. It is a fact. I am fat. I will likely be fat for the rest of my life. It's as clinical to me (I work in healthcare) as the sky being blue or my patient being bradycardic- it is what it is and the sooner we stop pretending it's anything more than that, the sooner we can all move on to the more important realities of dealing with the consequences.
% is too high. When i worked out a lot and biked to work, i had 31" waist and 26" thighs. Dr. visit said I was Obese on BMI. it does not take into account body type.
Depending on the type of work you are doing, you could be losing fat while gaining both muscle and bone density.
If you were mostly untrained/inactive before starting this job, you've most certainly grown/densified a lot of bone.
That's what happened to me with my previous job. Family and friends kept telling me that I look good and thinner but the scale was more or less the same. I do feel better and went down a size so it's a win for me overall.
Muscle is denser than fat. You can "gain weight" while losing volume.
Also location itβs stored. Some people carry it differently, but fat often builds up around a persons mid-section and causes that pear/apple body shape. Muscles gain bulk on the ones being used. A person can loose the inches of fat around their waste, then build up muscle mass in their arms/shoulders. The fat loss is noticeable because a person starts using a different belt notch or their pants fall down, but the added muscle bulk around the arms will be less likely to require replacing/adjusting oneβs clothing.
you have "bot account" checked on the settings.
Thanks for the heads up!
My doctor calls this remodeling
I didnt know bone density changed naturally, I thought you had to fracture it a bunch of times to build density. Very interesting!
Yes it is so caleld body recomposition. You can burn fat and gain muscle at the same time, thus maintaining the same weight. You will look thinner though, the good kind of thinner with a better build.
This cycle is what I go through every time I start working out again. For at least a few months, whatever weight I started with is where I'm more or less going to stay but it gets redistributed to places that aren't my stomach and neck so I ultimately look and feel a lot better even though the scale would argue I haven't done shit at all.
Its better to focus on body fat percentage than weight. Fancier scales can give you that metric. Cheap measuring tape or the OPs pants test are also good, albeit slower, methods to measure the change.
100% agree although my fancy pants Garmin scale is absolute shit at measuring body fat. Could be there are better but I'll stick to the caliper test myself.
Scales canna tell the difference between muscle and fat. If you've being labouring, you likely have developed muscle whilst losing fat.
aye laddy
Yes, they can. I have a scale that is able to tell fat and muscle mass apart
Those scales are generally precise, but they arenβt very accurate. Good if you are consistently using them and using the numbers as a reference to progress, but I wouldnβt going around saying the number is a true representation of your body fat.
Basically, what you went through is called body recomposition.
I would assume your job had your muscles placed under enough mechanical tension to stimulate hypertrophy, but you didn't eat enough to be in a caloric surplus. Otherwise you would've gained weight. For gaining muscle mass anyway, I guess your diet was high in protein?
If he has not done much gym-like sport ever (which, if they are surprised by losing fat and keeping mass, it's probably the case) they are probably on the "noob gains" phase, no need for high protein meals.
I have a lot of experience with weight loss through strict dieting and generally my 'thinness' has always been tied with the scale number. Was never much of an excersise person besides basic walking routine always prefered just not eating. My diet does consist of a lot of protein too, though I do try to stay more on the fruits, veggie, and nuts side of it. So its a little jarring for me to be getting thinner while not loosing any total mass since ive never 'bulked' before. I really appreciate everyones input on this its good to know im not going crazy lol
True, that would make the most sense
Very possible, I've maintained about the same weight the last few years while losing fat and gaining muscle.
If your job is very intensive, then its quite possible your putting on muscle as well
Muscle is much denser than fat, too. So its possible to actually lose fat, but gain weight.
You can even shrink your waist and gain weight at the same time as many said, since muscle is heavier.
Also water retention plays a role, depending on what you eat and how much water you drink. It's normal to oscillate around a kilo that is just water.
Yes, a given volume of muscle weighs more than the same volume of fat. I don't know if a specific ratio, but it probably varies from person to person.
You're about to become a hungry boy when all your fat is gone.
It's funny, I was literally having this exact conversation with my wife last night.
It's actually, as others have said, surprisingly likely. You're not precisely "losing weight" so much as you are "becoming more dense," at least in part. Like, yeah, you're burning fat, but you're also building muscle.
The big up-side is that muscle burns more calories than fat under the same circumstances, so as you do this -- as you convert more of your overall weight into muscle -- you'll notice that you continue that process more and more efficiently. (I say as an overweight person who hasn't benefited from this process in a very long time...)
I gain weight when I'm pushing hard climbing, but have to tighten some belts a notch more. It's muscle gains and fat burns.
My last project push I went down from 32 to 31 pant size but had gained 8kg. Fittest I've been in my life and sent my climbing project :)
It's probable
Muscle is like 15% denser than fat, and you might also be building muscle in different parts of your body than where you're losing fat. Depending on the job, I assume this is either in your arms or lower legs. You can take a few extra measurements to check this if you're interested.