Consuming more calories, Higher Heart Rate?

[SarahLucy145]

Just a quick question. I normally have a lower heart rate but I was only allowing myself to eat 1200 calories a day sometimes less. I'm 22yr old female.5'4. SW196. CW 165:) I've started eating more calories now 1609-1800 or more. I've noticed my RHR has went from around 50 to now 56. Is this from increased calorie intake ? Is it okay or should I go back to eating less. I'm moderately active but try to work out once a week. (:

[Dominique]

I wouldn’t be too worried about the elevation in RHR, especially since it’s from a much lower level than average. I don’t think it’s from the increase in calories consumed either. I personally observe temporary elevation of RHR when I’m more stressed than usual, or when I’m sick. Also, variations of 5-10 bpm are quite normal IMO. How long have you had your HR-enabled Fitbit?  

[Esya]

Also the temperature is picking up for the Northern part of the world, which can also increase your RHR slightly.

[SarahLucy145]

I've had it for about a year. It fluctuates from low 50's to upper 50's. 

[Dominique]

± 5 from the mid point is a normal fluctuation range IMO. In your case, the recent increase was from the lower end of your historical fluctation range, and even after the increase your RHR is still well within that range. I would start worrying if your RHR kept rising and went into the 60’s, ie. outside the range you’ve now been in for one year.