yes. im 5 ft 8. i was13 stone and size 14-16 about 12 years ago.
when i was size 10, i weighed 8 stone 10lbs.
i lost the 4 stone over a couple of years as i had to totally retrain myself. i was young but over weight compared to so many of my peers at work etc. my weight gain was all due to poor diet as i was fairly active due to having no car.
the weight loss was very hard work.
i didnt follow a diet but made more sensible food choices.
i cut out take away foot and ready meals.
had vitually zero carbs except for breakfast cereals.
meals were a huge mound of salad and veg with a protein
i drank spirits instead of beer/wine.
i had to to be extremely disciplined because i have naturally a huge appetite - for me, it was a constant battle of trying not to eat what i wanted. it was mentally hard losing and maintaining the weight. it caused some stress going out to eat with my then partner as i found meals out hard due to fatty offerings! a lot of the time i wanted to plough my way through a whole bag of fun size snickers in one sitting and every week i did, so this why my weight loss took 2 years!
after dc2, im sitting stubbornly at 9 and a half stone and a size 12. id like to be 10 again but do get people telling me i do look slim. i literally eat whatever i want. for me, with my frame size, body shape of rectangle and appetite (huge) being a 10 is too much hard work.
so, it can be done but for me took a lot of effort as im not a naturally slim person, i do like to stuff my face and eat large portions.