Mastering the Art of Healthy Eating: Diet Tips and Nutrition Research | Professor Walter Willett, MD

The Proof with Simon Hill

Simon Hill

Nutrition, Education, Self-improvement, Health & Fitness

4.9 • 3.1K Ratings

🗓️ 19 June 2023

⏱️ 114 minutes

🔗️ Recording | iTunes | RSS

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Summary

Episode #266. Learn the key pillars for a healthy diet from the world’s most cited nutrition scientist, Dr Walter Willett. In this two-hour exchange, Dr Willett shares the cornerstones of a healthy diet, providing the practical guidance you need to live a long, healthy life. We discuss: Introduction (00:00) Which Foods Should You Eat to Stay Healthy? (04:10) Does the Quality of Foods Matter? (06:39) The Impact of the Average American Diet on Health (08:29) Do We Have Sufficient Evidence on How Nutrition Impacts Our Health? (11:05) Key Tasks/Leaves to Make Healthy Choices (14:03) How Diet Patterns Have Changed from the 70s till Now (15:09) Walter Willet: A Nutrition Story (18:20) Ancel Keys' Research on Fat (19:40) Three Large Observation Studies by Walter Willet and His Team (27:19) Advantages of Large Observation Studies over Randomized Control Trials (32:45) Correlation and Causation in Nutrition (39:15) Food Frequency Questionnaire: Importance of Methods for Measuring Dietary Intake (50:58) Biochemical Analysis in Three Cohort Observations of Walter Willet's Studies (55:18) Are Low-Fat Diets Good for Cardiovascular Health? (1:00:37) Polyunsaturated Fats and Cardiovascular Disease (1:02:21) Benefits of Switching from Saturated Fat to Unsaturated Fats (1:08:31) Is Dairy Bad or Good? (1:09:04) Should You Consume Full-Fat or Low-Fat Dairy? (1:11:29) Daily Recommendation for Dairy Consumption (1:16:03) Can You Be Healthy Without Consuming Dairy? (1:20:42) Confusion Surrounding Unprocessed Red Meat (1:23:00) What is Substitution Analysis? (1:25:55) Insights into the Research Process (1:27:45) Contrast and Exposure in Research (1:29:33) Safe Intake of Red Meat (1:33:02) Is Grass-Fed Beef Good for Me? (1:33:51) Is White Meat Better Than Red Meat? (1:35:57) Fish vs. Legumes: A Comparison (1:36:37) Dietary Cholesterol and Its Impact on Human Health (1:40:08) The Best Diet for a Healthy Life (1:43:28) Outro (1:52:01) To learn more about Dr Walter Willett and read his studies, head to his Harvard Academic Profile. Dr Willett has also published four books; you can find his bestseller, Eat, Drink, and Be Healthy: The Harvard Medical School Guide to Healthy Eating here. Optimise your health with InsideTracker’s biomarker analysis. Get exclusive access to InsideTracker’s new ApoB test, and a significant discount at insidetracker.com/simon. Enjoy, friends. Simon Want to support the show? The best way to support the show is to use the products and services offered by our sponsors. To check them out, and enjoy great savings, visit theproof.com/friends. You can also show your support by leaving a review on the Apple Podcast app and/or sharing your favourite episodes with your friends and family. Simon Hill, MSc, BSc (Hons) Creator of theproof.com and host of The Proof with Simon Hill Author of The Proof is in the Plants Watch the episodes on YouTube or listen on Apple/Spotify Connect with me on Instagram, Twitter, and Facebook Nourish your gut with my Plant-Based Ferments Guide Download my complimentary Two-Week Meal Plan and high protein Plant Performance recipe book

Transcript

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0:00.0	Quick one. My team tells me we actually have very few reviews relative to the weekly audience
0:07.4	numbers. This is no doubt my fault, as I've always felt a little weird about asking you
0:12.2	to do something for me. But clearly, if you don't ask, you don't get. So if you're enjoying
0:17.6	the show, if it's providing you value, please take 30 seconds and leave a review on Apple
0:22.6	or Spotify. In doing so, you'll help the show rank higher, which means we can continue
0:27.6	to attract the brightest and most trustworthy people in science. My team and I have big plans
0:32.6	for the show where we want to be in 24 months and we need your help to make this possible.
0:40.3	Unfortunately, the average American is not doing well at all in terms of diet quality.
0:46.1	There have been various scores to assess diet quality and they usually come in at about 50 out
0:51.8	of 100, only about 5% of Americans meet the US dietary guidelines. A poor diet quality certainly
0:59.9	has many adverse effects on many diseases, cardiovascular disease, type 2 diabetes. We see if we shifted
1:09.0	to a healthy dietary pattern, we could prevent about 20, 25%, maybe 30% of premature deaths.
1:17.2	But it's not just about living or dying, it's about quality of life. A healthy diet isn't going
1:21.7	to solve everything. It's really important that we include physical activity, not smoking,
1:26.8	avoiding alcohol. And we do see if we do all of those things right. We can add about 10 years of
1:32.6	healthy life expectancy, not just living longer and being in a nursing home, but 10 years of healthy
1:38.3	living. Today's episode is with Professor Walter Willett. Dr. Willett is a physician and epidemiologist.
1:45.6	And Professor of Epidemiology and Nutrition at the Harvard T.H. Chan School of Public Health.
1:51.9	He served as chair of the Department of Nutrition at Harvard for 25 years. Much of his work has
1:58.0	been on the development of methods using both questionnaires and biochemical approaches to study the
2:04.4	effects of diet on the occurrence of major diseases. He applied these methods starting back in 1980
2:11.6	in the nurses health studies, one in two, and the health professionals follow up study. Together,
	...

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