APEX Health With Simon Johnson
Sep 14, 2026 · 42 min · 10 segments
Most people think they have a nutrition problem. They do not. They have an awareness problem. Chris has a Masters in Sports Nutrition and spent nearly a decade as the nutritionist for Wasps Rugby…
Simon JohnsonHost
And obviously, I know obviously your kind of primary work is to do with, like, performance nutrition, but a lot of the people listening to this, it's gonna be body composition.
So I wanna break it down into kind of, like, weight loss, building muscle, and performance.
What would the kind of top one or two mistakes you see in each, if we say to, say to start with weight loss?
The biggest one, actually goes across all of it, but perhaps a little bit more biased towards weight loss, is tracking accuracy.
So generally speaking, humans are incredibly good at over-reporting how much they move and under-reporting how much they eat.
So you know those people like, "Oh, I eat 1,200 calories a day and not losing anything"? You're not eating 1,200 calories a day.
Like, yes, we have slightly different metabolisms in terms of how they adapt to a calorie deficit and all this kind of stuff.
They either haven't, um, calculated the actual targets properly, which is kind of unlikely, but perhaps that's the issue, or perhaps the issue is that you're just not, you know, actually inputting the foods you think you are, especially when you're eating out.
It's like I've seen so many kind of MyFitnessPal entries and stuff when they're going out for, like, I don't know, like, a roast dinner or whatever, and it's like-
And obviously, I know obviously your kind of primary work is to do with, like, performance nutrition, but a lot of the people listening to this, it's gonna be body composition.
So I wanna break it down into kind of, like, weight loss, building muscle, and performance.
What would the kind of top one or two mistakes you see in each, if we say to, say to start with weight loss?
The biggest one, actually goes across all of it, but perhaps a little bit more biased towards weight loss, is tracking accuracy.
So generally speaking, humans are incredibly good at over-reporting how much they move and under-reporting how much they eat.
So you know those people like, "Oh, I eat 1,200 calories a day and not losing anything"? You're not eating 1,200 calories a day.
Like, yes, we have slightly different metabolisms in terms of how they adapt to a calorie deficit and all this kind of stuff.
They either haven't, um, calculated the actual targets properly, which is kind of unlikely, but perhaps that's the issue, or perhaps the issue is that you're just not, you know, actually inputting the foods you think you are, especially when you're eating out.
It's like I've seen so many kind of MyFitnessPal entries and stuff when they're going out for, like, I don't know, like, a roast dinner or whatever, and it's like-
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