
Alexandra Johnstone
Professor of Human Nutrition at the Rowett Institute, University of Aberdeen, researching appetite control, chrononutrition and food insecurity.
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2
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Jul 23, 2026
Why We Eat: The Science of Appetite, Nutrition and Weight - Prof Alexandra Johnstone
44:16
44:27
66:21

Alexandra JohnstoneGUEST
So SACEN is the government's body, which is Scientific Advisory Committee for Nutrition, that looked at ultra-processed foods.

Alexandra JohnstoneGUEST
And they have said that there are different definitions in use globally for But the one that is most commonly used is the NOVA category.
22 MINS LATER

James McIlroyHOST
pills so on so forth we've not spoken about fiber much in the episode just yet so so so maybe we can do a little bit of a fiber deep dive what is it why is it important how important is it is it nuanced like should everyone just eat more fiber or
Tweaks for 2026: How to eat better
4:04
4:22
4:41

Alexandra JohnstoneGUEST
Breakfast skipping is interesting because my own work would tend to suggest and that sort of observational, large-scale epidemiological studies would also support this, that people who have a regular breakfast are actually leaner.

Alexandra JohnstoneGUEST
And my own work would tend to suggest that having your largest meal of the day in the morning period gives you a much better appetite control, which then means it's much easier to control food intake later in the day.

Alexandra JohnstoneGUEST
So really, I am supporting the meme, breakfast like a king and dine like a pauper.