One Health Tweak a Week Podcast

Ben Jones MD PhD
  • 5.0 (1)
  • Nutrition
  • Updated Daily

One straightforward, science-backed tip for a longer, healthier life - direct from an MD PhD to you each week. newsletter.onehealthtweakaweek.com

  1. 3d ago

    Could Ultra-Processed Food Be Ageing You Faster?

    Can eating lots of ultra-processed food make your body age faster? Several recent studies suggest it might. Across large US, UK and Italian datasets, people eating the most ultra-processed food tended to have biological-age profiles several months older than those eating the least. In this episode, we look at what “biological age” actually means, how researchers estimate it using blood biomarkers, DNA methylation and telomere length, and why these measures are useful without being precise personal clocks. We’ll then work through the strongest studies, including one involving more than 16,000 US adults in which each additional 10% of daily energy from ultra-processed food was associated with 0.21 extra biological years. We’ll also explore what may be driving the association. Excess body fat appears to explain roughly a quarter to a third of the effect, while poorer diet quality accounts for only part of the remainder. Other possibilities, including inflammation, altered food structure, microbiome changes and chemicals from processing or packaging, remain plausible but unproven. This isn’t an argument for dietary purity. The practical question is which ultra-processed foods you eat most often, and which of those would be easiest to replace. Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Could Ultra-Processed Food Be Ageing You Faster?

  2. Aug 8

    Could Swapping Some Eggs for Other Proteins Help You Live Longer?

    Last time, we looked at the complicated evidence around whole eggs and long-term health. This week, the obvious question is: what should you eat instead? In this episode, we move beyond generic lists of “healthy alternatives” and look at the different jobs eggs perform in real life. They’re quick, warm, savoury, satisfying and a convenient source of protein. Any useful replacement needs to account for that. We start with the lowest-friction option: keeping egg-based meals but using fewer yolks and more whites. From there, we look at substitution studies comparing eggs with nuts, legumes, whole grains, fish, poultry, and lower-fat dairy, and why some of these swaps are associated with lower risks of premature death, cardiovascular disease, and type 2 diabetes. We also cover the less helpful replacements. Swapping eggs for processed meat, red meat or full-fat dairy may move risk in the wrong direction. Finally, we tackle the protein question. You don’t need one ingredient to reproduce everything an egg provides. Protein adds up across the meal, whether that’s yoghurt with nuts and seeds, beans with whole grains, tofu with edamame, or one whole egg with extra whites. The aim is to find meals that are practical, satisfying and genuinely worth looking forward to. Science-backed advice, simple steps, real results. Subscribe to One Health Tweak a Week today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Could Swapping Some Eggs for Other Proteins Help You Live Longer?

  3. Jul 23

    Egg Advice Is All Over the Place. What Should You Do?

    Are eggs good for you, or are they harmful? It sounds like a straightforward question. Unfortunately, the evidence refuses to give us one straightforward answer. In this episode, we look at why the health effects of eggs depend on far more than whether you eat them at all. How many do you eat - one occasionally or several every morning? Do you eat the whole egg or mostly the whites? Are they boiled or fried? Do they arrive with vegetables and wholegrain toast, or with bacon, sausages and butter? Your wider diet matters too. So do your age, cholesterol response and metabolic health; whether you have diabetes or cardiovascular disease; and even where in the world you live. These differences help explain why some large studies appear reassuring while others link regular egg consumption with greater cardiovascular and mortality risk. We separate what eggs genuinely offer from what their yolks bring with them, examine why dietary cholesterol never became irrelevant, and ask whether reassuring averages can conceal the risk to an individual listener. The useful answer lies beyond “eggs are healthy” or “eggs are harmful”. We work through the evidence and arrive at a practical way to decide how often whole eggs belong in your own diet - without turning breakfast into a nutritional battlefield. Science-backed advice, simple steps, real results. Subscribe to the One Health Tweak a Week newsletter today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Egg Advice Is All Over the Place. What Should You Do?

  4. Jul 18

    The 18g Protein Swap Linked to a Longer Life

    Protein advice has become very focused on one question: are you getting enough? That matters, especially in midlife and later life, when maintaining muscle, strength and independence becomes increasingly important. But there’s another question that gets far less attention: where is that protein coming from? In this episode of One Health Tweak a Week, we look at the evidence behind the 18g protein swap: replacing roughly one daily serving of animal protein with plant protein. Across several large, long-running studies, that kind of shift is linked with a lower risk of dying prematurely, especially when plant proteins replace processed meat, red meat and egg-heavy meals. This isn’t an argument for going vegan, and it isn’t anti-protein advice. For older adults, getting enough protein remains a priority. For younger adults, the message is a little different: don’t necessarily chase ever-higher protein targets, but do pay attention to the mix. We’ll look at why the protein source matters, which swaps offer the greatest likely benefit, and how to add more beans, lentils, chickpeas, tofu, soy foods, nuts, seeds, and whole grains without accidentally cutting your protein intake. The upgrade is simple: eat a better protein pattern Science-backed advice, simple steps, real results. Subscribe to the One Health Tweak a Week newsletter today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    The 18g Protein Swap Linked to a Longer Life

  5. Jul 11

    Why Your Best Intentions Get Lost in the Grocery Store

    This week’s One Health Tweak a Week podcast looks at why a healthy grocery trip so often comes home with a few extra foods that were never on the list. Following Helen, a sensible midlife shopper trying to buy food for a reasonably healthy week, we explore how grocery stores quietly reshape what we notice, reach for and justify. The episode looks at oversized shopping carts, fresh produce at the entrance, bakery smells, scattered essentials, aisle-end “specials”, free samples, bulk deals and health-halo packaging that makes ultra-processed snacks look like acts of self-care. The point isn’t that shoppers are gullible, or that one packet of muffins or family bag of chips ruins anyone’s health. It’s that the foods we bring home become the choices available to our tired, hungry, busy future selves. The grocery store changes what we buy today; our cupboards change what we eat for the rest of the week. You’ll also hear practical ways to shop more consciously without becoming joyless about it: write a real list, choose the right basket or cart, plan treats rather than collecting ambush treats, treat aisle-end offers as adverts, question health-halo claims, and avoid bulk-buying foods you don’t want to eat in bulk. Science-backed advice, simple steps, real results. Subscribe to the One Health Tweak a Week newsletter today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Why Your Best Intentions Get Lost in the Grocery Store

  6. Jul 4

    Could Plant-Based Meat Be the Healthier Choice?

    Plant-based meat alternatives have come a long way from the worthy-but-woolly veggie sausages of the 1990s. Today’s burgers, sausages, mince and nuggets can look, sizzle and chew remarkably like meat. But does that make them a healthier choice, or just a more convincing ultra-processed food? In this episode, we’ll explain why “plant-based” is too broad a label to trust on its own. We’ll separate genuinely health-supportive plant proteins, such as beans, lentils, tofu and tempeh, from ultra-processed meat mimics designed to replicate the eating experience of burgers, sausages and nuggets. We’ll look at what short-term trials show when people replace meat with plant-based meat, including the encouraging signals for LDL cholesterol, fibre intake and body weight. Then we’ll step back and ask the bigger question: do those short-term improvements prove long-term health benefit? Most importantly, we’ll show why the real comparator matters. A plant-based sausage replacing a pork sausage may be a useful step. A plant-based sausage replacing lentils, fish, tofu or a minimally processed meal probably isn’t. By the end, you’ll have a simple rule: judge the swap, not the slogan. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Could Plant-Based Meat Be the Healthier Choice?

  7. Jun 27

    You Don’t Need the Best Fruit. You Need a Better Mix

    Do you really need to find the “best” fruit, or is ordinary fruit already doing most of the work? In this episode of One Health Tweak a Week, we look at the anxiety created by health blogs, Instagram “super-berries”, and nutrient rankings, then ask a more useful question: how can you get the greatest benefit from the fruit habit without turning it into homework? We start with the bigger evidence: fruit is strongly linked with healthy ageing and lower all-cause mortality, with around two handfuls a day appearing to be a meaningful target. Then we test the idea of a single “best” fruit by comparing fruits for fibre, vitamin C, polyphenols, potassium, vitamin A, and lower-calorie volume. The answer is reassuring: different fruits do different jobs. Berries shine for fibre and polyphenols. Citrus, kiwi, strawberries and tropical fruits bring vitamin C. Dark fruits add polyphenol depth. Apples, pears, bananas and frozen fruit keep the habit practical. Dried fruit can help, but it works best as a small addition rather than something to graze from the bag. The tweak: build a weekly fruit spectrum, not a fruit ranking chart. Science-backed advice, simple steps, real results. Subscribe to the One Health Tweak a Week newsletter today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    You Don’t Need the Best Fruit. You Need a Better Mix

  8. Jun 20

    Could a Protein Gap Be Costing You Muscle as You Age?

    Protein supplements are usually marketed at gym-goers, bodybuilders and people chasing bigger muscles. But the people who may benefit most are often the ones least likely to think about using them: older adults, plant-based eaters, people trying to lose weight without losing muscle, and those recovering from illness, surgery or hospitalisation. In this episode of One Health Tweak a Week, we look at a more useful question than “Do protein shakes work?”: Are your meals actually giving your muscles enough protein? You’ll learn why protein needs often rise from our sixties onwards, why appetite and food volume can make those targets harder to reach, and why breakfast is often the meal where the biggest gap quietly appears. We also explain when protein powder can be a sensible top-up, why it shouldn’t replace proper meals, and why “high-protein” snack foods are not the same thing as a useful supplement. The episode also covers plant-based diets, calorie restriction, recovery after illness, and the essential role of resistance exercise. By the end, you’ll have a simple way to audit your breakfast, spot a real protein shortfall, and decide whether food alone is enough or whether a simple supplement might help close the gap. Science-backed advice, simple steps, real results. Subscribe to the One Health Tweak a Week newsletter today and take the guesswork out of healthy living. Get full access to One Health Tweak a Week at newsletter.onehealthtweakaweek.com/subscribe

    Could a Protein Gap Be Costing You Muscle as You Age?
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One straightforward, science-backed tip for a longer, healthier life - direct from an MD PhD to you each week. newsletter.onehealthtweakaweek.com

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