In the last couple of days, there have been two media pieces that want us to ditch dietary guidelines, claiming that promoting ‘high carbohydrate, low fat diets’ is to blame for the ‘obesity epidemic’. The first is Channel 7’s news piece from ‘dietitian’ Christine Cronau (not actually a dietitian!) and The National Obesity Forum in Britain.
I have a lot to say but I’ll try to keep it to one or two (or four) points.
- These people are not using the best methods of looking at the science.
Christine is using anecdotal evidence: ie, what works for her. We know that as long as you stick to a diet, you can lose weight for a few months. This includes very low carbohydrate diets like the Atkins diet. This is not news.
The National Obesity Forum looks a little more legit. It references studies! That’s scientific, right? The thing is when you look at individual studies, you can make claims about anything you like. The report looks at 43 studies, which sounds like a lot, but the dietary guidelines examine literally thousands of studies. These giant reviews are much more reliable.
- People aren’t following dietary guidelines.
Less than 4% of adults in Australia are eating the recommended amount of vegetables. There is a great chart in this article. To claim the guidelines are to blame when practically no-one is following them is bizarre. Also, Australia’s Dietary Guidelines are moderate carbohydrate, not high!
- Weight is not a good measure of health.
To claim that all thin people are physically healthy and all fat people are not is ridiculous. What truly matters is health behaviours. And remember that there is more to health than physical health. Having a good social life and good mental health are extremely important, and if your way of eating is not helping your to see friends and be happy, it’s not healthy.
- There is not one diet that is the best diet for everyone.
As I wrote in my take on high/medium/low carbohydrate diets, healthy diets do have common features: Lots of fruits and vegetables, high in fibre, has all the energy, vitamins, and minerals you need, and not dominated by highly refined grains, sugar or processed meats. Eat delicious food you love that makes your body feel good.