Here's a tip for severely obese people who want to lose weight - go on an extremely low calorie liquid diet.
As it turns out, experts have found that this kind of diet can help the morbidly obese shed almost half their body fat.
The finding is based on the experience of a 59-year-old severely obese man who lost more than 70-kilos following the strict portion-controlled, calorie-precise diet that endocrinologists from the Heidelberg Repatriation Hospital in Melbourne put him on.
"Over the 12 months, the patient's weight fell steadily," News.com.au quoted lead author Priya Sumithran, as saying.
"At one-year follow-up he had lost 43 per cent of his initial weight," she added.
The specialists said the trial was the first to prove that very low calorie diets could be used safely and effectively.
Dr Sumithran said the diets in current use "contain high-quality protein and appear to be safe".
However, they warned that it could only be followed under close medical supervision.