[saargrin]

1700 kcal a day for male is already pretty high calorie deficit even without any physical activity

[von_lohengramm]

On average, sure, but there are plenty of metabolic outliers, and I doubt those seeking weight loss are on the higher end. My weight was surprisingly consistent at 1300kcal/day.

[zro]

As an outlier more towards the other end, my weight tends to fall if I go below about 2500 kcal/day

[petercooper]

Is it that far off? I had a medical last week and was told my resting metabolic rate was around 1750 kcal.

[FartyMcFarter]

Resting metabolic rate means "sitting on the couch literally all day long".

Even the slightest physical activity (working, moving around the house) will raise that by a few hundred calories.