Mother-of-four loses eight stone during lockdown by rocking out to heavy metal and tweaking her diet
![Mother-of-four loses eight stone during lockdown by rocking out to heavy metal and tweaking her diet](https://i.dailymail.co.uk/1s/2021/04/11/10/41609306-0-image-a-70_1618133609191.jpg)
Su Morgan, 40, from Birmingham, reached 18st 7lb after years of downing two litres of Dr Pepper each day and gorging on double portions of dinner and takeaways.