Does metabolism slow as you age?

Does metabolism slow as you age?

Author
Discussion

AI1601

Original Poster:

890 posts

109 months

Saturday 13th July 2024
quotequote all
I’ve always thought I’ve had a fast metabolism. Been slim all my life and find it very hard to gain weight even though I’m 32 despite people saying it slows down once you hit 30. Or is it that I’m not eating enough?
I’m 5ft10 and weigh 70kg, eat roughly 1800-2000cal a day.

jayymannon

265 posts

92 months

Sunday 14th July 2024
quotequote all
I don't think it slows down as much as some people think. I think there is a higher decline in older age but even then I think it's a relatively small amount.

I think what generally happens is people start to get less and less active as they age, whether they realise it or not and the weight slowly creeps on.


grumbledoak

32,141 posts

248 months

Sunday 14th July 2024
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1800-2000 kcal per day is not much for someone your height. It's no wonder you are thin.

You do lose muscle mass as you age. That does slow your metabolism. It is a good idea to get some exercise. You don't have to win the Olympics, gentle exercise will do.

But in truth most people get middle aged spread because they overeat daily. Not much, a few biscuits with their morning tea or a packet of crisps with lunch will do it.


Hoofy

78,602 posts

297 months

Sunday 14th July 2024
quotequote all
It's something like 0.1% decline every 10 years. It might be more or it might be less but the real factor is that we move less and eat more. Crazy thinking, eh. Imagine that. If I put in more calories and move about less, I get fat. However, if you do the reverse you still get fat unless you eat the right food... apparently. rofl

#FastingForLife

popeyewhite

23,007 posts

135 months

Sunday 14th July 2024
quotequote all
grumbledoak said:
1800-2000 kcal per day is not much for someone your height. It's no wonder you are thin.

You do lose muscle mass as you age. That does slow your metabolism. It is a good idea to get some exercise.
This. It's fairly easy to maintain lean mass with resistance exercise up into your eighties and keep a consistent metabolism. The word 'metabolism' only refers to the body processes involved in taking in food, digesting. and converting to energy after all.

MC Bodge

24,891 posts

190 months

Sunday 14th July 2024
quotequote all
Older people who don't eat or drink too much rubbish or booze and do rergular exercise stay slim and healthy.

Chomping snacks, regularly drinking alcohol and little physical exertion results in weight gain which accumulates over time.

TheInternet

5,016 posts

178 months

Sunday 14th July 2024
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grumbledoak said:
1800-2000 kcal per day is not much for someone your height. It's no wonder you are thin.
Smack bang in the middle of the healthy BMI range isn't thin though.

ambuletz

11,286 posts

196 months

Sunday 14th July 2024
quotequote all
There was a study (and several articles) on this afew months back. Generally speaking no, it doesn't 'slow' until you're well into your late 60s, even then the change is quite small.

AI1601

Original Poster:

890 posts

109 months

Sunday 14th July 2024
quotequote all
Interesting stuff. I thought at 2000kcl a day I was eating a lot!
I have a friend who is shorter than me and substantially larger, around 110kg. I have always wondered how he puts on the lbs so easily. He says he doesn’t eat that much but I’m guessing it will be a lot more than 2000kcl.

Hoofy

78,602 posts

297 months

Sunday 14th July 2024
quotequote all
AI1601 said:
Interesting stuff. I thought at 2000kcl a day I was eating a lot!
I have a friend who is shorter than me and substantially larger, around 110kg. I have always wondered how he puts on the lbs so easily. He says he doesn’t eat that much but I’m guessing it will be a lot more than 2000kcl.
Usually, they're kidding themselves. Of course, a small % of people who say this actually have some kind of medical condition and it's usually sorted out by visiting a GP. PCOS is a common culprit... but I suspect he doesn't have ovaries. biggrin

768

16,787 posts

111 months

Sunday 14th July 2024
quotequote all
How do you end up knowing how many calories you consume and not what the maintenance amount should be? It's like knowing how far along your train journey you are, but not where your stop is. hehe

anonymous-user

69 months

Sunday 14th July 2024
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So easy to over eat.

Even easier to do nothing for a lot of people. If I don't consciously do exercise I can do less than 2000 steps a day if I was that way inclined.

Snow and Rocks

2,878 posts

42 months

Sunday 14th July 2024
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Despite the studies I do think there must be a difference - at uni I ate a ridiculous amount, had far more alcohol than was sensible and didn't particularly go out of my way to exercise but stayed relatively slim. Think multiple bowls of Crunchy Nut every morning for breakfast, footlong subway for lunch, piled up plates of spag bol with seconds for dinner.

If I ate like that now in my late 30s I would be enormous!

Luke.

11,426 posts

265 months

Sunday 14th July 2024
quotequote all
TheInternet said:
Smack bang in the middle of the healthy BMI range isn't thin though.
That BMI range was devised in the 1830s and is woefully out of date.

Steve H

6,301 posts

210 months

Tuesday 16th July 2024
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It probably does but at 32 I hadn’t noticed much, mid 50s I would say it’s a little more relevant.

Snow and Rocks

2,878 posts

42 months

Tuesday 16th July 2024
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Luke. said:
That BMI range was devised in the 1830s and is woefully out of date.
By out of date, you mean before we become accustomed to being so fat?!

Terminator X

17,822 posts

219 months

Tuesday 16th July 2024
quotequote all
AI1601 said:
I’ve always thought I’ve had a fast metabolism. Been slim all my life and find it very hard to gain weight even though I’m 32 despite people saying it slows down once you hit 30. Or is it that I’m not eating enough?
I’m 5ft10 and weigh 70kg, eat roughly 1800-2000cal a day.
See the TV programme. Your "fast metabolism" will be because you walk places, up stairs and don't snack much. That vs people who sit on the sofa eating their own bodyweight in snacks and have a "slow metabolism" wink

TX.

768

16,787 posts

111 months

Tuesday 16th July 2024
quotequote all
Snow and Rocks said:
Luke. said:
That BMI range was devised in the 1830s and is woefully out of date.
By out of date, you mean before we become accustomed to being so fat?!
Mostly, but there are other issues.


MC Bodge

24,891 posts

190 months

Tuesday 16th July 2024
quotequote all
Snow and Rocks said:
Luke. said:
That BMI range was devised in the 1830s and is woefully out of date.
By out of date, you mean before we become accustomed to being so fat?!
I'm lean, fit, in my mid 40s, healthy ...and my BMI is in the healthy range.

My great great grandfather was a soldier in the Crimean War. He may have been shorter than me, but he was probably lighter too. Humans were not dissimilar to us 200 years ago.

MC Bodge

24,891 posts

190 months

Tuesday 16th July 2024
quotequote all
Terminator X said:
AI1601 said:
I’ve always thought I’ve had a fast metabolism. Been slim all my life and find it very hard to gain weight even though I’m 32 despite people saying it slows down once you hit 30. Or is it that I’m not eating enough?
I’m 5ft10 and weigh 70kg, eat roughly 1800-2000cal a day.
See the TV programme. Your "fast metabolism" will be because you walk places, up stairs and don't snack much. That vs people who sit on the sofa eating their own bodyweight in snacks and have a "slow metabolism" wink

TX.
Snacking and inactivity over a long period are indeed the shocking causes
-Who'd have thought It?