I’m not someone who thinks the BBC is a very reliable source of evidence but I’ll play along. Let’s look beyond the headline shall we?
The researchers looked at 37 studies with over 9,000 patients to compare the blockbuster weight-loss jabs with conventional dieting or other pills.
Only eight of the studies assessed treatment with the newer GLP-1 drugs, such as Wegovy and Mounjaro, and the maximum follow-up period in these studies was a year after medication stopped, so the figures are an estimate.
People who diet instead can expect to lose less weight than with the jabs, but afterwards weight creeps back on more slowly - perhaps around 0.1 kg a month - say the researchers, although it does vary.
So in 8 out of 37 studies, people who lost weight slowly put it back on slowly. I mean that’s hardly ground breaking is it? Looking at the actual analysis, they analysed people who had lost on average just over 8kgs in a year on WLIs.
Firstly, that’s a very slow weight loss on WLI. So either those people weren’t massive overweight in the first place or they really didn’t change their eating habits very much. As a reminder, I’ve lost 1/3 of my body weight in 18 months.
Secondly, the people on WLIs were still lighter than the people who had pursued diet and exercise only one year after stopping WLIs. They lost 15% of their weight and regained 10%. Diet and exercise people lost 5% and regained 2%.
What this shows is that yo-yo dieting is yo-yo however you do it. If you only do WLIs for a year and lose a relatively small amount of weight before stopping them, you’ve probably not changed behaviour or eating so just like any other diet, you’ll likely pile on the pounds.
For those of us who are determined to make a wholesale change, who are going to the gym and have drastically changed our diets (we’re not just eating less, we’re eating differently) the outcomes will be different. And I’m quite prepared to be on these for life. I’ve avoided statins and hypertension because of WLIs. My blood pressure is normal. My VO2 fitness is way above average. I’m fit, healthy and happy. And I have my investment in myself via WLI to thank for it.