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TDEE - does it affect fast day calories?

(5 Posts)
Brassica Wed 09-Jul-14 12:42:27

I presume so, but the commentary everywhere on 5:2 just says to eat 500 calories per fast day. My TDEE comes out as 1550 or so, and I presume I'm meant to eat one quarter of that, rather than 500.

Is that right? Sorry if it's a much-asked question, I can't find any mention on here. Obviously I'm hoping against hope that 500 is the right answer as <400 sounds really hard!

TalkinPeace Wed 09-Jul-14 14:32:09

If your TDEE is 1550, then you are very short or have little to lose.
Technically fasts should be 1/4 of TDEE
For many overweight people, learning to live within their TDEE is such a shock to the system, that 500 is the best number to work with (that and all the recipes are based around 500!)

Brassica Wed 09-Jul-14 16:58:26

Thanks Talkin - yes, I'm fairly short (160cm) and ticked the box for sedentary because I have an office job and never get to the gym. I'd like to lose a stone - my BMI is fractionally under 25 and I carry all my chub round my middle so it seems a good idea to try and lose some of that fat if I can.

BigChocFrenzy Wed 09-Jul-14 19:06:24

You'll lose ok with 500 cal FDs.
Even for small women, it still gives a big calorie deficit.
Women with high TDEE can optionally go to the 25% TDEE - mine is 2400 and I exercise intensively, so I do 600 FDs.

Brassica Wed 09-Jul-14 20:25:51

Ah that's reassuring BigChoc, thank you!

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