Re: 2500 calories for a man
Posted: May 16th, 2020, 10:13 am
Does the Fitbit add on your body’s basic needs? - you’d use ~600Kcal doing absolutely nothing.
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They reckon 350 to 500 calories a day goes on your brain, and another 600 to 700 on your liver. Donald Trump is championing a new scientific truth whereby you can load up your guts as much as you like, providing that you restrict your brain load accordingly. He's planning to live forever.Snorvey wrote:Does the Fitbit add on your body’s basic needs? - you’d use ~600Kcal doing absolutely nothing.
yes. I have spend days doing absolutely nothing (in the interests of science btw and the lowest I've got it down to is about 1700 calories - which ties in with my Basal Metabolic Rate
You think that's unrealistic? My rowing machine tells me I'm getting through 650 calories in half an hour, although admittedly that's on strenuous days. Consensus seems to be that it's about half that. Dammit.Gerry557 wrote:Fitbits are not that accurate. I don't believe my heart rate was 210 for the last 10 min of my run this morning even though it included a steep uphill section. More likely 180 region in real world.
I suppose it depends on your base rate. You might be 7 feet tall and have 10% body fat and weigh 18 stone.bungeejumper wrote:You think that's unrealistic? My rowing machine tells me I'm getting through 650 calories in half an hour, although admittedly that's on strenuous days. Consensus seems to be that it's about half that. Dammit.Gerry557 wrote:Fitbits are not that accurate. I don't believe my heart rate was 210 for the last 10 min of my run this morning even though it included a steep uphill section. More likely 180 region in real world.
BJ
I've never had a Fitbit, but I should imagine that your pulse is one thing that it certainly ought to be getting right? And then, by applying all the usual Harris Benedict calcs on your age, height and weight, it ought to be in the right ballpark for calories?Snorvey wrote:My rower, which is not connected to me in any way, seems to tie in with the fitbit - I.e about 300 cals for a half hour row. The fitbit has my height/weight age etc and also measures my pulse.
I'm not sure if the 'bit is all that inaccurate. I've measured my pulse manually and it seems to tie in with the data.
I have a set of Tanita scales which I stand on periodically and log the results. I reckon I'm fairly fit, certainly no couch potato. It tells me my BMR is (averaged over the last 9 months) 2226 kcal. Rest of me is 1.9m, 92kgs, aged 55 (the way it flatters me is to tell me my metabolic age is 40: yippee!)Snorvey wrote:I'm a man in his 50's, 5'10 & 11 stone. These days, I consider myself to be reasonably fit (Not 'ultra marathon' fit though). So across the board, I think I'm pretty average.
I'm told by the smart people that I should be consuming 2500 calories a day. I think this is too much.
For the 1st time in ages I put on my fitbit yesterday to see where I was at. Yesterday was busy enough. A bit of this, a bit of that. Up and down stairs, a few jobs around the house......and a 12 mile cycle in the afternoon.
The thing is, according to the 'bit, the cycle burned through 534 calories. My total for the day (again, according to the FitBit) was 2538. If I hadn't gone out for the cycle I'd have over consumed by around 500 calories. (I don't actually know how many calories I consumed yesterday btw).
My point is that I think the Government calorie consumption guidelines for an average bloke during pretty average things on a pretty average day are too high by a fair amount.
But it is just that, Guidance!Snorvey wrote:To return to my original point. I think the government guidance of 2500 calories is too high - particularly in these days of largely sedentary lifestyles and jobs sitting on your butt all day. Most people are probably over consuming by about 300 calories a day (this is not hot off the press news though)
The NHS has a BMI calculator on it's website, so why not a BMR calculator like the one above? At least then you'll know how much you should be consuming compared to your activity.
Gerry557 wrote: Even BMI has to be used as guidance and not taken as law. If you are more muscley you might be over on BMI but have really low body fat
who are these "smart peoiple" ?Snorvey wrote:I'm a man in his 50's, 5'10 & 11 stone. These days, I consider myself to be reasonably fit (Not 'ultra marathon' fit though). So across the board, I think I'm pretty average.
I'm told by the smart people that I should be consuming 2500 calories a day.