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The Bitter Truth About Sugar with Dr Robert Lustig #251

Mar 29, 2022 1h 47m 39 insights
My guest on this week’s Feel Better Live More podcast is Dr Robert Lustig, Professor of Paediatric Endocrinology at the University of California. He’s a leading public health expert who has long been exposing the myths of modern medicine and the food industry. His passion is communicating how sugar and ultra-processed food is fuelling the chronic disease epidemic that we are all facing today. Obesity, type 2 diabetes, metabolic syndrome, heart disease and so much more are caused, in Rob’s view, by the foods that we are eating. In his latest book, Metabolical: The Lure and the Lies of Processed Food, Nutrition and Modern Medicine, he outlines what he calls the ‘hateful eight’ – the eight root causes in our body that underlie all chronic disease. He explains how food and sugar impact on them and, most importantly, suggests strategies to counteract them. In this conversation, Rob explains why sugar can be so damaging and explains that just like alcohol, our bodies can cope with sugar in small amounts. But in excess will end up in the liver and ultimately trigger us to get sick. Rob’s decades of clinical experience and research has led to his bold and compelling assertion that the answer to all chronic disease can be found in real food. His solution? To ‘protect the liver, feed the gut’. I think these 6 words are an elegant way of summarising the nutritional advice that all of us should consider taking on board in order to improve our health and wellbeing. We talk about what constitutes ‘real food’ and how different levels of food processing are classified. Rob explains why sugar-sweetened drinks can be so disastrous for health, particularly in children – and why diet drinks do just as much damage, if not more. We also talk about TOFI (thin on the outside, fat on the inside) and fascinatingly, Rob outlines the three types of fat gain that we can all experience: subcutaneous (which you can see); visceral (stress-related fat around the middle), and liver fat. It’s only the first of these that you’re likely to notice – but it’s the latter two which we really need to fix, especially as they’re already appearing in kids. This conversation is full of mind-blowing facts and insights but it’s also really empowering and contains simple, practical tips that all of us can use to improve our lives. I hope you enjoy listening. Caution: contains mild swearing. Thanks to our
Actionable Insights

1. Rethink Health Through Diet

Understand that fixing healthcare requires fixing health, which in turn requires fixing diet, by identifying and correcting dietary misconceptions.

2. Eat Real Food for Health

Prioritize consuming “real food” as the primary solution to mitigate and prevent chronic diseases, as asserted by decades of clinical experience and research.

3. Protect Liver, Feed Gut

Guide your eating choices by prioritizing foods that protect your liver and provide nourishment for your gut microbiome, as this is a core principle for improving health and wellbeing.

4. Avoid Ultra-Processed Foods

Recognize that ultra-processed food is not true “food” because it inhibits burning and growth, and therefore should be avoided to prevent chronic disease.

5. Lower Insulin Levels

Prioritize reducing insulin levels in your body, as high insulin drives obligate weight gain and diminishes energy expenditure, impacting overall quality of life.

6. Focus on Insulin Reduction

Redefine your primary health goal from weight loss to insulin reduction, as lowering insulin levels is key to achieving weight loss and improving overall health.

7. Target Insulin Resistance

Seek to address insulin resistance as the fundamental issue underlying many chronic diseases, rather than just treating symptoms, to achieve significant health improvements.

8. Address Upstream Causes

When facing a health issue, always seek to identify and address its fundamental upstream cause rather than merely managing downstream symptoms.

9. Prevent Chronic Disease Causes

Shift focus from merely treating symptoms of chronic diseases to actively preventing them by addressing the eight underlying root causes (the “hateful eight”) that drive illness.

10. Reject the Western Diet

Make a conscious effort to avoid the Western diet, as it is the only dietary pattern the expert explicitly advises against due to its detrimental health effects.

11. Low Sugar, High Fiber

Adopt a dietary approach that is fundamentally low in sugar and high in fiber, as these are the common linchpins for success across various healthy diets.

12. Eliminate Sugar for Liver

Drastically reduce or eliminate sugar consumption, as it is the primary driver of liver fat accumulation and subsequent metabolic dysfunction and insulin resistance.

13. Reduce Sugar Intake

Decrease your consumption of sugar, as it poisons mitochondria and inhibits the body’s natural energy production, leading to feeling lousy over time.

14. Approach Fructose Like Alcohol

Recognize that fructose is metabolized almost identically to alcohol, and therefore, consume it cautiously to prevent liver damage and metabolic issues.

15. Eliminate Sweetened Drinks

Cease consumption of all sugar-sweetened beverages and soft drinks, as they are disastrous for both adult and child health and contribute to numerous deaths.

16. Avoid Diet Drinks/Sweeteners

Do not consume diet drinks or artificial sweeteners, as they can lead to overeating, negatively alter the microbiome, and promote fat deposition despite having no calories.

17. Consume Fiber for Gut

Increase your intake of fiber, nature’s perfect prebiotic, to feed your gut bacteria, support a healthy microbiome, and prevent issues like leaky gut and inflammation.

18. Avoid Processed Foods (Fiber)

Avoid processed foods because the removal of fiber during processing deprives your gut bacteria of essential nourishment, disrupting gut symbiosis.

19. Check for Added Sugar, Fiber

When choosing foods, be vigilant about the addition of sugar and the removal of fiber, as these processing changes are detrimental to health.

20. Avoid Nova Class 4 Foods

Steer clear of Nova Class 4 foods, which are ultra-processed items like apple pie, as they are the only category strongly associated with chronic disease.

21. Choose Natural, Unprocessed Foods

Select foods that originate directly from the earth or from animals fed natural diets, as this is the definition of “real food” and helps avoid processed items.

22. Real Food Boosts Immunity

Prioritize eating real food, as it is linked to lower mortality rates in countries with traditional diets and can improve immune function and resilience against diseases like COVID-19.

23. Lower Insulin, Reduce Infection

Decrease consumption of processed food to lower high insulin levels, which in turn reduces ACE2 receptors on cells and can lower the risk of viral infection.

24. Control Blood Glucose

Maintain healthy blood glucose levels, as high glucose can make cells more susceptible to viral infection by holding ACE2 receptors open.

25. Increase Fiber Intake

Incorporate more fiber into your diet to generate short-chain fatty acids, which are crucial for tempering the cytokine response and improving insulin sensitivity.

26. Manage Stress for Belly Fat

Actively manage stress to lower cortisol levels, as high cortisol contributes to the accumulation of visceral belly fat, which is metabolically active and harmful.

27. Beware Hidden Liver Fat

Recognize that liver fat, often invisible on the scale, can cause metabolic dysfunction and insulin resistance with as little as half a pound, making it crucial to address its causes.

28. Don’t Trust the Scale

Understand that the scale is a misleading indicator of health because it doesn’t account for the three different types of fat depots, particularly the metabolically harmful visceral and liver fat.

29. Protect Kids from Sugar

Safeguard children from excessive sugar consumption found in processed foods and fruit juices, as 20% of children already have liver fat unrelated to obesity, setting them up for future health problems.

30. Break Sugar Cycle

Reduce sugar consumption to prevent the down-regulation of taste receptors on the tongue, which otherwise creates a vicious cycle of needing more sugar to satisfy sweetness cravings.

31. Reduce Sugar for Brain

Decrease sugar consumption to potentially mitigate issues like irritability, violent behavior, cognition problems, and changes in brain structure, which are associated with high sugar intake.

32. Learn Real Food Preparation

Engage in practical learning experiences, such as cooking demonstrations, to understand and implement a real food diet, as people are more likely to adopt habits they are shown and practice.

33. Skepticism of Food Industry

Be critical of information from the food industry, particularly regarding sugar, as historical evidence shows they have paid scientists to mislead the public.

34. Eliminate Trans Fats

Actively remove trans fats from your diet, as they are considered highly detrimental to health due to their indigestibility by mitochondria.

35. Limit Apple Juice

Exercise caution and limit consumption of apple juice, even if unsweetened, because the processing shears insoluble fiber, allowing sugar to flood the liver.

36. Rethink Pill-Centric Health

Move beyond the outdated belief that pills can solve all health issues and instead embrace a revolution in thinking that prioritizes foundational health factors, particularly diet.

37. Diet Soda Still Harmful

Recognize that while diet sodas may be “half as bad” as regular sodas, they are still harmful and should not be considered a healthy alternative.

38. Beware Food Processing

Understand that the problem with food lies in the extent of its processing, not its inherent nature, and therefore prioritize foods that have undergone minimal alteration.

39. Solve Problem’s Cause

To effectively resolve any health issue, always identify and address its underlying cause, rather than just treating the resulting symptoms.