In this week’s episode, we’re talking about visceral fat - the fat packed around your abdominal organs that is much more strongly linked than ordinary body fat to insulin resistance, worse cholesterol patterns, type 2 diabetes, and long-term cardiometabolic risk.

Most people assume the best way to reduce belly fat is to diet harder. But when you look specifically at visceral fat, the evidence points in a different direction. Large reviews suggest that exercise is more effective than calorie restriction for reducing this dangerous fat, even when dieting leads to more overall weight loss.

We’ll look at why the scale can be misleading here, why you can lose visceral fat while your weight barely changes, and why that matters.

We’ll also walk through the evidence showing that the more energy you expend through exercise, the more visceral fat you’re likely to lose, and why vigorous aerobic exercise and HIIT appear to work best.

This is also a realistic episode. We’ll talk about what “enough” exercise actually looks like in practice, why a few gentle strolls usually won’t make much difference to visceral fat, and why resistance training still matters even if it isn’t the strongest standalone tool for this specific goal.

If you’ve ever felt frustrated that your waistline and your scales don’t seem to agree, this episode should help you think about the problem more clearly - and give you a more useful plan for what to do next.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

In this episode, we explore a question that turns out to be much bigger than sleep alone: what happens when your body clock starts to drift?

The starting point is deceptively small. Over the past couple of months, my bedtime slipped by around 45 minutes. On paper, that sounds trivial. In practice, it brought early waking, rougher mornings, and that slightly wired, slightly frayed feeling that suggests something deeper is off. And that is the heart of this episode: the idea that functioning is not the same as being in sync.

We often treat poor sleep, late-night screen use, caffeine reliance, rough mornings, and drifting routines as separate problems. But what if they are really clues that the underlying timing system beneath them - your circadian rhythm - is getting blurrier signals than it should?

We unpack what circadian rhythm actually is, why regular timing matters for more than just sleep, and what the research says about rhythm stability and long-term health. We also look at the practical side: morning light, consistent wake times, meal timing, evening boundaries, and the small daily cues that help your body know when day begins and night ends.

If your routines have been quietly drifting later, this episode will help you spot the signs - and tighten one slipping rhythm before your body accepts it as normal.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

If you’ve ever looked at a bowl of grapes and thought, “This is basically sweets in disguise”, this episode is for you.

This week, we tackle a surprisingly anxious question: does eating fruit every day quietly sabotage your weight and waistline - or can it actually help?

We’ll walk through what large, long-term studies really show: people who eat around 200 g / 7oz of whole fruit a day - roughly two decent handfuls - tend to gain less weight over time, are less likely to become overweight or obese, and usually have slightly slimmer waists than those who rarely touch fruit.

Then we get into the why. Not magic fat-burning, but how whole fruit behaves in your body: water, fibre and intact cell structure slow sugar absorption, increase fullness, and make fruit far more likely to displace savoury snacks, biscuits, desserts and sugary drinks than to add on top. We’ll also unpack why juice and smoothies behave much more like soft drinks, and where they fit (or don’t) if you’re watching your weight.

Finally, we’ll give you a simple, no-drama rule of thumb: how to use a “double handful” of fruit most days to support your long-term health and weight, without calorie-counting or fear of fruit sugar.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

If you’re going to spend money on extra-virgin olive oil, it’s worth making sure you’re not just buying a story on the label.

In this episode, we move from why EVOO is such a good health bet to how to actually choose, store, and use it so you’re more likely to get the benefits the studies point to.

We’ll look at why “extra-virgin” is a legal grade, not a health guarantee, and why polyphenols are the real stars. We’ll walk you through the simple signals that tilt you towards a higher-polyphenol bottle without needing lab tests: harvest date, country or region, single-estate and early-harvest clues, and even that peppery throat “bite”.

Then we get practical about packaging and storage: why dark glass in a cool cupboard matters, why very large bottles are usually a false economy, and why plastic bottles, pouches and many cans are best avoided if you care about both polyphenols and endocrine-disrupting chemicals.

Finally, we tackle how to cook with EVOO in real life. We bust the “only use it cold” myth, and look at how to make olive oil your default fat for salads, sautéing and roasting so you naturally drift towards that 10–30 ml/day “benefit zone” - without drinking it by the shot.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

This week’s episode is about extra-virgin olive oil as a small daily habit that quietly pulls several big levers at once.

We look at why regular EVOO use keeps turning up in the data alongside lower risk of early death, fewer deaths from heart disease, cancer and dementia, a lower risk of type 2 diabetes and osteoporotic fractures, and slightly better weight and waist outcomes - even though it’s a calorie-dense fat.

We break down the practical “benefit zone” of roughly 10–30 ml a day (about 2 teaspoons to 2 tablespoons), why you don’t need to aim for Mediterranean-level intakes, and why the real magic is what EVOO replaces: butter, margarine, ghee, lard, hard spreads, cheap vegetable oils, mayonnaise and creamy sauces.

We’ll also put some common worries into context - especially the fear that “oil is fattening” and must be used in homeopathic amounts if you care about your weight.

By the end of the episode, you’ll have a clear picture of how much olive oil you’re probably getting now, which other fats are doing most of the day-to-day work in your kitchen, and where the easiest opportunities are to let EVOO take over some of those jobs.

Next week, we’ll build on that by looking at which bottles are actually worth buying - and how to use them well.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

In this episode of One Health Tweak a Week, we zoom out from the protein hype and ask a calmer question: given your age and how you actually eat, how much protein makes sense – and are you anywhere near it?

Everywhere you look, the message is “add more protein”. High-protein labels are slapped on yogurts, cereal, bread, ice cream and snacks; fitness feeds throw around magic numbers like 0.8 g/kg, 120 g a day, 1.6 g/kg for “gains”.

But big national surveys suggest most under-65s are already at around 1.0–1.3 g/kg, and large cohort studies hint that the lowest risk of early death for many adults sits nearer 0.7–0.9 g/kg, not the bodybuilder targets.

We’ll unpack how that picture flips in later life, where the real danger becomes too little protein, muscle loss and falls, and why many older adults quietly slide down to 0.6–0.8 g/kg just as they may need closer to 1.0–1.2 g/kg (if kidneys allow) to stay strong and independent.

Then we’ll walk you through a simple two–three day protein check-up so you can estimate your own intake in g/kg and see, by age band, whether your bigger risk is too little protein, too much, or the wrong kind – and make one calm, age-appropriate tweak instead of chasing the loudest voice online.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

If you’re eating pretty well, avoiding sugar-sweetened drinks, and your belt still feels tighter than it should, this episode is for you.

In last month’s belly-fat episode, we asked listeners to upgrade just one ultra-processed eating occasion. More than half chose their snacks. That made me curious - and when I dug into the data, it made sense.

For many adults, snacks now provide around a quarter of daily calories, and a disproportionate share of added sugar, saturated fat, and ultra-processed food. In other words, your “just a biscuit” moments might be doing more damage than your meals.

In this episode, we’ll look at why snacks are such a powerful lever for visceral fat and metabolic health, including a brain-imaging study where eight weeks of high-fat, high-sugar snacking actually changed how people’s reward circuits responded to rich foods. We’ll talk through the big danger zones - the late-morning or mid-afternoon slump and the after-dinner treat - and why the underlying need (hunger, tiredness, or reward) matters.

Then we’ll get practical. We’ll walk you through a two-minute snack audit, simple design rules for a “waist-friendlier” snack, and a menu of options that still feel like real treats. We’ll finish with a 7-day “snack upgrade” experiment designed to be small, realistic, and surprisingly powerful.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

In this episode of One Health Tweak a Week, we zoom out from individual habits - bedtime, breakfast, evening screens - and look at the bigger system they all feed into: your body’s internal clock.

We’ll walk you through what circadian rhythms are, why you have one master clock in the brain and lots of local clocks in organs like the liver and gut, and why health isn’t just about what you do but when you do it.

We’ll look at large studies showing that people with fragmented, irregular 24-hour routines have higher risks of dementia, stroke, Parkinson’s disease, anxiety and even early death, even when their total sleep time looks “fine”. We’ll touch on shift work, social jetlag, and why midlife is when circadian misalignment really starts to bite.

Then we bring it back to something practical: a simple way to sketch your own 24-hour rhythm so you can see where your life and your body clock are currently out of sync. No perfection, no overhaul - just observation.

If you’re someone who already cares about sleep, diet and exercise, this episode will help you connect those dots into one overlooked pillar: living in better rhythm with your body clock.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

We’ve been told to eat our five a day for as long as we can remember - but what does the evidence actually say? And how much fruit do you really need to see measurable health benefits?

In this episode of One Health Tweak a Week, we look at three decades of data from over 100,000 adults to uncover the surprisingly strong link between whole fruit intake and healthy ageing. We’ll cover why fruit topped the leaderboard in a major study of people who reached age 70 free from major disease or disability - and what makes whole fruit different from juice, smoothies, or added sugars.

You’ll learn:

* Why 200 grams / 7oz a day (about a double handful) seems to be the sweet spot

* How fruit is linked to lower risk of heart disease, stroke, diabetes, and dementia

* How to make fruit a daily habit - even if you’re more biscuit than berries

* And why your fruit bowl might be judging you (just a little)

This isn’t about superfoods or expensive berries. Just one tweak - easy to measure, easier to keep.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.

If you’ve ever thought, “I’m already doing quite a lot… surely the only way to get healthier is to overhaul everything,” this episode is for you.

This week, we dig into a new Lancet analysis of nearly 59,000 adults that asks a deceptively simple question: what happens when you make small, combined improvements in sleep, movement, and diet - instead of trying to perfect just one?

You’ll hear how higher SPAN scores (Sleep, Physical Activity and Nutrition) were linked with extra years of total and disease-free life, why the steepest gains appear at the bottom of the curve, and what that means if you - or someone you care about - are starting from a less-than-ideal baseline.

We’ll walk through concrete examples from the study:

* How 5 extra minutes of sleep, 2 minutes of moderate-to-vigorous movement, and ½ cup of veg a day mapped to about one extra year of life, and

* How slightly bigger but still realistic changes were associated with around five extra years.

We’ll also talk about sweet spots for sleep and activity (yes, more is not always better), why doing “a little in two lanes beats doing a lot in one”, and how this paper quietly validates the whole One Health Tweak a Week approach.

If you’re ready to choose one or two tiny, stackable tweaks this week, press play.

If you’d like to see the graphs and scoring criteria so you can see where you are on the SPAN scale, head over to the newsletter version of this podcast. You’ll find it here.

The One Health Tweak a Week newsletter has now been read over 100,000 times. Subscribe to get it in your inbox every Saturday.

Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living.