https://www.scientificamerican.com/article/how-much-fat-can-you-lose/

The other day, I was browsing nutrition headlines when I came across a summary of some new research on exercise and fat loss, which concluded that “it is not possible to lose more than 1 kilogram of fat per month.” (A kilogram is just over 2 pounds).

Not possible to lose more than 2 pounds of fat per month? Most diets promise that you’ll lose that much every week!