“I did loads of exercise but oh my goodness, you have to eat very, very little, really.
“And you have to work very, very hard to get the kind of results I did, I lost like four stone.”
The recommended daily calorie intake according to the NHS for men is around 2,500 calories and for women it’s 2,000.
For those wanting to lose weight, Healthline suggests cutting calories by 500 a day for effective and sustainable weight loss.
The Healthline website explains: “Yo-yo dieting, also known as “weight cycling,” describes the pattern of losing weight, regaining it and then dieting again.
“As you lose fat, leptin decreases and appetite increases. This leads to increased appetite as the body tries to resupply depleted energy stores. In addition, the loss of muscle mass during dieting causes the body to conserve energy.”
In October, Nadia hiked the Himalayas while raising money for CoppaFeel, which is 8,848 metres tall.
In a conversation with her husband Mark Adderley, Nadia teased her involvement in the trek.
She said: “You know I’ve got to do this challenge in October, I will hopefully be able to tell you what it is.
“I’m going to do some press interviews tomorrow and then hopefully I will be able to tell you what it is.
“It’s part of the reason I have been getting fitter as I need to be fit to do it.”
Nadia also has a range of cookbooks out including recipes and weight loss tips and advice.