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How To Eat To Boost Your Body’s Natural Defences & Avoid The Foods That Weaken Them with Dr William Li #450

May 7, 2024 1h 29m 31 insights
Today’s guest passionately believes that the decisions we make every day about what we eat, have a huge influence on our overall health. Dr William Li is a medical doctor, internal medicine specialist, research scientist and the author of the 2 international bestsellers, Eat to Beat Disease and Eat To Beat Your Diet. He works in a field of research called Food as Medicine and having been involved with the development of many different drugs over the past few decades, he is passionate about using scientific rigour to analyse the specific benefits of food. Dr Li has been a guest on my podcast on 2 previous occasions - Episodes 234 and 376 - and those episodes remain some of the most downloaded episodes in the history of my show. Today’s brand new episode was actually a conversation Dr Li and I recorded together around 2 years ago, but the content within it, is just as relevant today.   In this conversation, we covered a broad range of food related topics that people often find confusing, with the intention of providing more clarity. We start off talking about the foods we might want to consider cutting back on, due to their negative effects on our health. We talk about sugar, artificial sweeteners, ultra-processed foods, alcohol, and the problems with reusing oil when frying.   We also talk about the practical steps we can all take immediately, when it comes to choosing foods that will enhance both our short term and long-term health.   We cover so many different topics today, including:   how you can go about choosing a good quality olive oil, the benefits of pairing certain foods together to increase nutrient absorption, how we can increase the amount of vitamin D in mushrooms, why organic foods are healthier, how to best read food labels, the link between the foods we consume and autoimmune disease, whether supplements are beneficial, and so much more.   Dr Li is someone who wants joy to be at the heart of how we think about our food choices and our health. He is knowledgeable, passionate and a wonderful communicator. I always enjoy my conversations with him, I hope you enjoy listening. Support the podcast and enjoy Ad-Free episodes. Try FREE for 7 days on Apple Podcasts https://apple.co/feelbetterlivemore. For other podcast platforms go to https://fblm.supercast.com. Thanks to our
Actionable Insights

1. Adopt a Whole Food Diet

Transition to a whole food diet, primarily plant-based, to unburden your body, calm your immune system, lower inflammation, and allow your natural health defenses to reassert themselves. This approach has many beneficial effects with very few negative side effects.

2. Avoid Added Sugars & Sodas

Cut down or cut out drinks with added refined sugar, such as sodas, as they overwhelm your body’s systems, impair stem cell function, and damage your gut microbiome, negatively impacting immunity.

3. Avoid Artificial Sweeteners

Steer clear of chemically synthesized artificial sweeteners found in diet sodas and other products, as they can harm your gut microbiome, leading to poorer metabolism and potential weight gain.

4. Limit Ultra-Processed Foods

Reduce consumption of ultra-processed foods that come in boxes or cans with many ingredients and preservatives, as they are associated with poorer health outcomes like diabetes, obesity, cardiovascular disease, and cancer.

5. Read Food Labels Carefully

Always check the ingredient label of any food or drink you consider buying. The order of ingredients indicates their concentration, so prioritize products with mostly water and natural, recognizable components.

6. Research Unfamiliar Ingredients

If you encounter an ingredient on a food label that you don’t recognize or can’t pronounce, use your mobile phone to search for information about that chemical. This empowers you to make informed decisions about what you put into your body.

7. Limit Oil Intake & Reuse

While some oils are healthier, limit your overall intake of all oils, aiming for around three tablespoons of olive oil per day as a maximum. Crucially, never reuse cooking oil, as heating changes its chemical structure in potentially harmful ways.

8. Avoid Processed Meats

Limit or avoid processed meats, such as deli meats and commercially cured sausages, which are classified as carcinogens by the World Health Organization. These often contain embalming-like preservatives that can be harmful.

9. Mindful Alcohol Consumption

Be mindful of the amounts of alcohol consumed, as it is easy to overconsume. While some fermented beverages may contain healthful properties, the ethanol itself offers no health benefits and is a toxin to your brain.

10. Prioritize Loved Healthy Foods

Identify and commit to eating healthy foods that you genuinely love, using a permanent marker to circle them in a list. Starting with foods you already enjoy makes dietary changes feel less daunting and more sustainable.

11. Choose High-Polyphenol Olive Oil

When buying extra virgin olive oil, look for monovarietal oils from specific olive types known for high polyphenol content, such as PICUAL (Spanish), Koroneki (Greek), or Moriolo (Italian). These varieties offer superior health benefits.

12. Eat Whole Olives

To maximize the intake of beneficial polyphenols like hydroxytyrosol from olives, eat the whole olive rather than just consuming olive oil. While olive oil contains some polyphenols, the majority remain in the olive’s pulp and water.

13. Heat Tomatoes with Olive Oil

To significantly increase your body’s absorption of lycopene from tomatoes, heat them in a pan with a little olive oil. Heating changes lycopene into a more absorbable form, and the fat-soluble nature of lycopene allows oil to carry it more efficiently into your body.

14. Pair Turmeric with Black Pepper

To enhance your body’s absorption of curcumin from turmeric, combine it with fresh cracked black pepper. The piperine in black pepper helps the body retain and utilize more of turmeric’s beneficial compounds.

15. Avoid Dairy in Tea

Be aware that adding cow dairy (milk or cream) to tea can trap beneficial polyphenols, such as catechins, in fat micelles, reducing their absorption by your body. This means you miss out on many of tea’s health benefits, even if you enjoy the flavor.

16. Use Nut Milks in Tea

If you prefer a milk-like addition to your tea, opt for nut milks like almond, cashew, or soy milk. These alternatives do not create the same fatty reaction as cow dairy, allowing for better absorption of tea’s polyphenols.

17. Try Taiwanese Milk Tea

Explore Taiwanese ‘milk tea,’ an oolong-style tea that naturally tastes like it has dairy due to its unique growing conditions and tea type. This allows you to enjoy a similar flavor profile without compromising polyphenol absorption.

18. Prioritize Whole Foods Over Supplements

When possible, choose to obtain nutrients from whole foods rather than relying solely on supplements. Whole foods provide a broader spectrum of beneficial substances like fiber, polyphenols, and natural peptides that pure supplements may lack.

19. Consider Omega-3 Supplements

If you do not regularly consume oily fish two to three times a week, consider taking a high-quality omega-3 fatty acid supplement. Omega-3s are crucial for health and are a worthwhile supplement.

20. Consider Vitamin D3 Supplements

Consider taking a vitamin D3 supplement, especially if you live in northern latitudes or have limited sun exposure due to climate or clothing. Many people are vitamin D deficient, and supplementation can be very beneficial.

21. Boost Mushroom Vitamin D

Increase the vitamin D content of white button mushrooms by slicing them thinly and laying the slices on a windowsill to expose them to sunlight for a couple of hours before cooking. Sunlight helps convert more vitamin D into the mushroom.

22. Pregnant Moms Take Folate

Pregnant mothers should consistently take folate supplements. This is critical to significantly reduce the risk of neural tube defects in their babies.

23. Be Skeptical of Supplement Claims

Approach supplement marketing with skepticism; if claims sound too good to be true or magical, it’s a red flag that the product may be misrepresented. Always research and verify information before purchasing.

24. Choose Organic Produce

Opt for organic produce because organically grown plants tend to have higher levels of beneficial bioactives. Plants produce more of these protective compounds as a wound-healing response when exposed to pests, a process that pesticides inhibit.

25. Eat Produce with Skin

Consume fruits and vegetables with their skins whenever possible, such as apples, pears, peaches, and carrots. The outer layers often contain more fiber and concentrated phytonutrients, like ursolic acid, which stimulates blood vessel growth and aids healing.

26. Rinse All Produce Thoroughly

Regardless of whether produce is organic or not, rinse it under cold running water for 60 seconds to remove potential pathogens like bacteria and listeria. This is a recommended food safety practice.

27. Rinse Onions Before Cutting

Even if you plan to peel an onion, it is recommended to rinse it under cold running water for 60 seconds before cutting. This helps remove any pathogens from the outer layers.

28. Choose Dried Organic Fruit

When selecting dried fruit, choose organic varieties, especially for fruits with thin skins. This is because pesticides are harder to wash off thin-skinned fruits, and organic options will have more beneficial bioactives.

29. Swap Foods Based on Properties

If you cannot consume a specific healthy food due to allergies, intolerance, availability, or cost, understand its beneficial properties and swap it for another food with similar benefits. For example, replace kiwi with red bell pepper or guava for vitamin C and fiber, or tomatoes with watermelon for lycopene.

30. Doctors: Ask About Joyful Foods

Healthcare professionals should ask patients about foods that bring them joy, rather than focusing on negative food habits. This non-judgmental approach encourages patients to look deeply within and engage more positively with dietary changes.

31. Love Your Food, Love Health

Embrace the motto: ‘Love your food to love your health,’ recognizing that both can happen simultaneously. Find and lean into the healthy foods you genuinely love to ensure a long and enjoyable life.