I am thinking of long term as once I'm at my target weight, I intend to continue to eat less calories than I was when putting on weight. Adjusting to suit once closer to my target.
Is there proof a body adjusts to what calories I give it? surely if a body adjusts down with less, it should counter adjust up if you feed it more.
If my body "adapts to 1600cals" then this BMR calcuation is not the same for all individuals, as each person calculation would/could vary due to eating factors. I was told in this thread earlier than it remains the same for all same height and weights etc pretty much, now your saying that isn't the case...
I'm confused.
Plenty of research out there:
ajcn.nutrition.org/content/57/2/127.short
http://psycnet.apa.org/journals/ccp/62/1/165/
In this paper at week 27 the severe calorie reduction had lost much more weight (21.45 and 11.86 kg), but by week 52 had regained a lot despite sticking to the same maintenance calories and ended up having less weight loss than the moderate reduction (10.94 and 12.18 kg)
The most important things is looking at long term differences. In trial after trial, subject on a severe calorie restriction do loose a lot of weight short term but will quickly put it back on, even with a controlled diet. Moreover, a moderate calorie deficit is much more manageable in the long term.
If the calories restriction is large then there are reduction in your TDEE as you become more lethargic. People starving in Africa from famine survive a long time on minimal calories because they spend most of their time asleep/half comatose. The end result is you may not see the weight loss at the rate you would expect given the deficit. The risk is even larger if you have low carb macros.
As long as you feel great and are exercising then a large calorie reduction may well see you loose a lot of weight but you might not or you might feel terrible a long the way, and you you main be more inclined to regain a lot of the weight down the road.
BMR wont vary much, TDEE can.
From your own table a 2200 calorie diet would still get you to your goal weight and is more liekly to be adhered to for years to come with lower risks of weight gain. Moreover, you could start at 2500 and still loose weight
http://ajpregu.physiology.org/content/269/1/R222.short
These findings support the hypothesis that the ANS (autonomic nervous system) acts to oppose weight change.