The Promise. Lose up to 10 pounds in 2 weeks -- and that's just the beginning of what the Mayo Clinic Diet says it can do for you. The Mayo Clinic Diet is the official diet developed by the Mayo Clinic in Minnesota.
1 18 calories in 1 cup of sliced green peppers (3.2 oz or 91g). 2  30 calories in 1 cup of chopped green peppers (5.3 oz or 149g). 3  24 calories in 1 average size green pepper.
150 calories (150 kcal) are in 0.25 cup-it has around the same amt of calories as 4.84 medium bell peppers (raw), 5.56 portion yellow bell pepper, and 12.5 medium banana pepper.