Professor Sarah Berry

speaker

555 appearances 6 recordings 1 series first heard Jan 2026 last heard 28 Jul

Professor Sarah Berry’s voice in public audio — every appearance, attributed to the second.

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recordings per month · last 12 months

Recordings per month over the last 12 months — 6 in all, peaking in Jul 2026 with 3.

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ZOE Science & Nutrition · How to eat sugar without gaining weight (crush your cravings and end energy crashes) | Prof Tim Spector & Prof Sarah Berry · 23 Jul 2026 podcast

They're absorbed really, really quickly because firstly, you're consuming it liquid and then it's really rapidly absorbed into your bloodstream.

So you have this very big peak in circulating blood glucose.

You're likely therefore to have your insulin overshoot and likely to have a dip in circulating glucose.

That's very different to if you're consuming that sugar in the form of a fruit or a whole food.

Very different.

It depends.

So some of these energy drinks have the sugar already broken down to the individual components.

So they might be particularly high in glucose, for example.

So unlike table sugar, that's glucose and fructose, it might just be the glucose or it might have the sucrose, so the glucose and the fructose.

It depends on the energy drink.

Either way, you're going to absorb that glucose really, really quickly.

And yes, maybe when you're on the bike, you've used up your glycogen stores and you need a bit of circulating glucose, having an energy drink is fine and you're going to quickly use that glucose.

But because you're having an afternoon slump or a mid-morning slump, absolutely, I think it's the worst thing that you can do because then you just continue that roller coaster of energy dips because of this big surge in glucose and this big dip.

I absolutely disagree with that narrative that I think is becoming a real problem at the moment on social media, that fruit, just because it's high in sugar, is bad for us.

The sugar in fruit is what we call intrinsic sugar.

So it's sugar that's encapsulated within the structure of the fruit.

So an orange behaves differently to orange juice.

An apple...

behaves differently to apple juice in terms of how the sugar is processed, but also the response that it elicits.

So let's take apples as an example.

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