We are pleased to announce that as of March 4, 2025, an updated Rich Text Editor has been introduced in the MyFitnessPal Community. To learn more about the changes, please click here. We look forward to sharing this new feature with you!

BMR, TDEE and weight loss

Shari325
Shari325 Posts: 196 Member
edited January 26 in Health and Weight Loss
Help me understand how these numbers apply to me.
MFP has set my daily calorie limit at 1600.
I am truly sedentary due to physical limitations. I am unable to do very much, including walking.
According to Scooby's calculators my BMR is 2100 and my TDEE is 2490. TDEE minus 20% is 1990.

I have been eating between 1400 and 1600 calories a day and I am losing on average 4# a week for the last six weeks.

If a pound of fat is 3500 calories, a loss of 4# a week means a 14,000 calorie deficit per week, or 2000 calories per day.
Does that mean my TDEE is actually closer to 3600 per day? And, if I wanted to slow my weight loss to 2# a week I would need to increase my calories to closer to 2600 per day?

I have a scale that calculates % body fat & % muscle. Although I know these are not overly accurate, it consistently shows a decrease in % body fat (7% so far) and a slight increase in muscle mass (1%). As long as this trend continues, I am not going to increase my calories that much because I still have over 100# to lose. I assume when I have less body fat to burn, I will need to consume more calories to prevent muscle catabolization.
This discussion has been closed.

Categories