Prof Felice Jacka
speaker
100 appearances
2 recordings
1 series
first heard Mar 2015
last heard 7 Aug
Prof Felice Jacka’s voice in public audio — every appearance, attributed to the second.
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I really appreciate it.
Yes, and you wouldn't be the only one.
Well, I would say that most definitely the evidence is around dietary patterns and diet quality and not around the individual nutrients and supplements.
Because as you say, we don't just eat individual nutrients and supplements, taking them out of their context and having them in synthesized form.
The evidence base is very preliminary at this point, whereas the evidence base around dietary patterns and mental health is far stronger.
We've looked at largely healthy versus unhealthy dietary patterns and we see repeatedly that healthy diets are related to a decreased risk for depression in particular and unhealthy diets, again, quite independently are related to increased risk and probability.
Now, importantly, we've seen that right across the age range.
So we've seen it in adults, in older adults, very critically, I think, in adolescents, which is the average age of onset for many of these common mental disorders.
and also now a strengthening evidence base around the importance of early life nutrition and in utero diet to mental health outcomes in children.
You really use statistics to do that.
Virtually all of the studies in this area have looked as much as possible at the possible role of socioeconomic status, income, education, etc.
And indeed last year, or 2013, we published a study from Australian adults up in the Canberra area that looked at this in really a lot of detail.
And while SES and income and education are related to diet quality and obviously also to depression,
They're not related as strongly as you might think.
And also the point is that it's not just poor or uneducated people that are eating badly.
Everybody's eating badly.
And the way we eat now has profoundly changed over the last 20 or 30 years.
In Australia, for example, less than 10% of the population adhere to the National Healthy Eating Guidelines.
Clearly.
I mean, as I say, this Western unhealthy diet actually does tend to look more similar across the globe because it's coming from a more similar source, which is industry.
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