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NEWS & CULTURE

WEIGHT LOSS MYTHS: Everything You Have Been Told About Diet & Exercise is WRONG! | Dr. Tim Spector

Tom Bilyeu | November 11, 2025



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On Today’s Episode:

If you’re tired of feeling trapped in the web of marketing lies from the food industry and misinformation bombarding you every time you scroll on social media, this episode is for you!

Millions of people are basically being tricked and misled into poor “healthy” food choices that make you unhealthy and even more overweight. It’s safe to safe diet and exercise are two of the best ways to have better health and lose weight but even that advice is being tainted by the medical research community, doctors, and companies with monetary agendas.

This episode is going to expose why counting calories doesn’t work and how it totally ignores the complexities of our human bodies and the environments we live in. It’s going to explain why exercise isn’t the best thing for most people to start with that are trying to lose weight. Finally we’re revealing how so-called “healthy” foods are as unhealthy as the fast food you’ve been told to avoid.

Tim Spector, professor of genetic epidemiology, award-winning scientist and author has been published in the world’s top scientific journals. His work has involved finding the link between genetics and disease. Part of that work includes exposing the lies and myths around nutrition, diet, and how to eat for better health.

Tim is also the co-founder of Zoe, a weight loss program and nutrition study designed to look at your gut microbiome, your blood sugar, your diet and more from day to day to help you improve your long-term health and reach a healthier weight.

Check out Tim’s book, Food for Life, The New Science of Eating Well: https://www.amazon.com/Food-Life-Science-bestselling-SPOON-FED-ebook/dp/B0B41SVPN9

QUOTES:

“It’s a bit of a vicious circle because they’re getting these sudden impulses to eat, they’re not able to plan all their eating as well as other people.”

“If you’ve ever had a really poor night sleep for some reason, your brain tells you to overeat.”

“People who eat lots of plants and have high fiber levels, that combination of diversity and high fiber, regardless of whether they eat meat or not are the healthy ones. So, meat, I see it as an option.”

“There’s a link between eating fiber and health.”

“Genetically we’re much more microbial than we are human.”

“I’d say to anybody with anxiety or depression issues, it’d be worth doing a three month experiment with your gut, […] with your microbes you’ll change your brain chemicals.”

“If you’ve got a healthy microbiome it will help your immune system fight the cancer…”

Follow Tim Spector:
Website: https://joinzoe.com/
Instagram: https://www.instagram.com/tim.spector/
Twitter: https://twitter.com/timspector
YouTube: https://www.youtube.com/c/ZOE-health

Written by Tom Bilyeu

Comments

This post currently has 20 comments.

  1. @rogerramirez-q7j

    November 11, 2025 at 2:31 am

    It’s why intermittent fasting works, calories are always important you can’t just eat all you want when you want, and exercise activates all the metabolic mechanisms to burn fat and build muscle so the system is able to function better. So many doctors are pill pushers. Food cures, and food will get you ill, FDA AND THE CDC HAS LOTS TO ANSWR FOR.

  2. @nicdupreez

    November 11, 2025 at 2:31 am

    Was listening to about minute 28 of the podcast and this theory hit me: What if the real problem with sugar is that it raised the pH of the stomach which allows “bad” microbes to grow? Hear me out. The stomach has a low pH, let’s say around 2 (it can vary). Sugar’s pH is neutral (7)… and sugar is very soluble. So sugar is easily absorbed into the gastric acid and raises the PH slightly altering the bacteria that comfortably grow in your stomach. While, for example, steak is also (almost) neutral (very slightly acidic), but it is absorbed slowly and therefore does not have such a dramatic effect on the stomach’s pH. This could also be why drinking apple cider vinegar is seen as having a positive effect on health. It could be that the bacteria that grow in a more neutral stomach habitat are not as favorable for weight loss as those that grow in an acidic environment?

  3. @PySnek

    November 11, 2025 at 2:31 am

    Started tracking all the calories I consume and to focus more on protein. Lost already about 22 pounds in 3 months on a small deficit of 300-350 kcals! This is the first time I succesfully lose weight without changing my diet by much. I even eat one ice cream sandwich that has about 135 kcals, EVERY SINGLE day. I still eat more fatty food like cheese, pork steaks, chicken legs and salmon. Follow the recommendations of natural bodybuilders. They know exactly how to lose weight in the best way possible. So that you still can build muscles at the same time. But it takes time. Don't expect to have a different body in a few weeks.

  4. @piotrraszkowski9700

    November 11, 2025 at 2:31 am

    Both are not true in my case:
    – 15 years ago, 98kg, I started to exercise 5 times/week (running) without any diet change -> I lost 18-20kg (98->80)
    – 3 months ago (as an advanced runner) I started to count my calories (to be precise and consistent in it) and again I lost 6 kg (78 -> <72).

  5. @FelixLanzalaco

    November 11, 2025 at 2:31 am

    So let me get this right. There was no microbial diet pro diversity study which eliminated healthy user bias by giving one group a diet of similiar healthiness but more diverse than the one which participants already had. i.e. no matched diet. Lets say they ate burgers already, then the participants were given many different types of burgers. No instead participants were always moved towards a healthier plant diet. The designers of this diversity theory did not consider that microbial diversity increases along the gut because those are the bacteria the gut is trying to expel, and diversity is actually quite small at the small intestine where the bacteria are adhered to the biofilm ? Yes this increase is related to pH but what does that tell you. Why would humans have to eat 30 plus types of food to be healthy, because there is no regular supply of 30 different foods they would need access to a pool of hundreds to maintain constant diversity. Where do they have such constant diversity ? We only just invented all those veggies recently in history. Doesnt more diversity increase unexpected difficulties for the gut ? Please counter my arguments effectively on the points I asked, because I really dont want to think scientists could just create a new health religion. And the truth might be the reverse, we just need a small select number of healthy foods instead

  6. @Jennafur70

    November 11, 2025 at 2:31 am

    Why do you “experts” not seem to understand that carbs are not the enemy, nor is fat?!!!! It’s when you combine the both of them in a close ratio, 50% carbs 50% fat that you gain weight! Low carb you lose weight. Low fat you lose weight. But you gain when they are in close ratio to each other when eating a meal. Go look at the McDougal program. People being deathly sick and healed from eating rice and sugar.

  7. @hfortenberry

    November 11, 2025 at 2:31 am

    Tom, I know people think it's a crazy, unhealthy diet, but the Carnivore Diet is helping thousands of people who have horrific gut issues. You might want to look into that for Lisa. She could just do it long enough to heal, as part of an elimination diet (which is what it's often used for) then she can add things back one by one to see what's affecting her. You've probably heard the story of Michaela Pederson who struggled with all kinds of immune issues from early childhood, which caused broken bones to needing hospitalization of many types and she eventually got tired of relying on modern medicine and took matters into her own hands and finally healed herself with very strict carnivore. She's got a channel on YouTube where she talks about it. There are tons of stories like hers. Also a lot of vegans (not all of course – but many) end up getting very sick over time and need to go on carnivore to heal their guts which had been damaged by years of being undernourished and ingesting plant toxins.

  8. @goldfishi5776

    November 11, 2025 at 2:31 am

    I have a big issue with his faith in laboratory created chemicals and fear to demonize sugar writ large etc.. He just makes many statements that make my spider senses ping as though he's not low grade paid off but certainly places faith in anything that passes trial. But you know what they say about religion.. We all have a god; I feel his god rests in clinical data. But all things have pieces of truth.

  9. @ds6882

    November 11, 2025 at 2:31 am

    Thankyou i love watching and listening to tims zoes u tubes videos so very interesting and informative and so helpful thankyou both 🙏❤️X

  10. @JohnSmith-gy4qj

    November 11, 2025 at 2:31 am

    I dont want to say this but the comments section makes more sense than the conversation. I hear you say so much about evolution then talk about being designed. So who is the designer?? Get to the point and stop all the waffling on. I am not overweight either. If it doesnt improve i wont waste my time here. I have heard enough…bye

  11. @arlettasloan6453

    November 11, 2025 at 2:31 am

    I got DNA tested and they found my particular DNA points to me needing a low fat, high carb diet. Like Dr. McDougall suggests people eat. I have a bad response to a few plants and all things related to beef, sheep and goat.

    I did a ketogenic diet with eating mostly non-starch veggies and a very little meat and doing intermittent fasting and I slogged along on it feeling overly full and horrible. Until I gave up on it being low starch and started eating way more carbs than I ate of meat. Not necessarily refined or sweet carbs but sometimes that, too. And, then I lost so much weight, so quick and got to where I could just fast as much as I wanted. That was before the DNA test.

    As was my testing out the McDougall /Ornish ideas where I had a time of not having anyone else around to stress me out and I could eat what I wanted so it was mostly beans, rice, oatmeal, Dave's Killer Raisin Bread, I think it was called, and some fruit and veggies. I was detoxing and losing weight, full of energy. Tested it. If I added in some coconut milk the weight loss slowed drasticlaly and I lost energy. If I ate meat, including fish, same thing. And, if I ate a signifcant amount of any fat or meat, I would stop losing weight.

    The people who did the test did say that some people need a diet that is very much the opposite, though.

Comments are closed.




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