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The Cambridge Diet: Slimmer Who Went From Size 24 To Size 10 Explains Why It Works

If you want rapid weight loss, the Cambridge diet has been hailed as one of the most effective ways to do so. 

In fact, actress Jennifer Ellison recently posted pictures of herself touting the benefits of the diet.

But what does it actually involve? 

It works on several 'steps' or levels of diet. If you are heavily overweight (they say a BMI of over 25 at least) and have found that diets haven't worked for you in the past, then you will want to start at stage one. 

This is called Sole Source, named after the meal-replacement products you'll be eating, and includes around four Cambridge products a day, coupled with 2.5 litres of water. Price-wise it costs about £44 a week, which they say is cheaper than Weight Watchers. 

We wanted to find out if it really worked, and what the challenges and benefits were, so HuffPost UK Lifestyle spoke to slimmer Cacia Griggs who works as a sales and marketing team leader, who managed the feat of going from a size 24 to a size 10 in 18 months. 

She said: "I started the diet in July 2011 and as with anyone who is overweight, there were lots of reasons why I wanted to lose the weight. But, I would lose motivation because I wouldn't see the results quickly and I had 8 stone to lose. 

Cacia - before the diet

"The final straw was when I saw an article that said if the parents were obese, then the children of the same sex are likely to become obese. I could not imagine my daughter Isabelle, who was three at the time being obese. Something had to change. People in my office had done the diet before and recommended it."