She also said the key to her weight loss is being honest about what she ate.
“It’s no good lying online – for example, saying you’ve just had two eggs when in reality you also had a bar of chocolate on the side. You’re not doing yourself any favours,” she remarked.
“Also, it’s not a race. Everybody loses weight at a different rate and the bigger you are, the faster you can lose weight.
“But if you’re five foot two, and you’ve only got a couple of stone to lose, it might take longer.”
Mary now weights 10st 8lbs and feels “healtiher, fitter and more confident”.
“I’ve been shopping for clothes and I’ve filled a charity bag full all my size 16 clothes,” she revealed. “Donating them to charity makes me feel good. I’m enjoying buying new clothes online in size 12 or 14.”