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PODCAST · health

Diet Science

by Dee and Michael McCaffrey

Diet Science is a fun 7 to 8 minute weekly program with insights and straight scoops on today's health and diet issues from Dee McCaffrey, CDC. Dee is an Organic Chemist who lost 100 pounds, nearly half her body weight, and has kept it off for 20 years by staying away from processed foods. She's the author of The Science of Skinny, released by Perseus June 2012, and The Science of Skinny Cookbook, which was released December 2014.

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Episodes

  1. Type 1.5 Diabetes – The Diabetes Many People Don't Know They Have

    Often mistaken for Type 2 diabetes, Type 1.5 diabetes, also known as Latent Autoimmune Diabetes in Adults (LADA), is an autoimmune form of diabetes that develops gradually in adulthood. Listen in this week as Dee explains what makes LADA unique, why it is so often misdiagnosed, and how...

  2. The Power of Pili Nuts

    Encased in a black shell that resembles a minature avocado lies the powerful pili nut, a type of tropical tree nut indigenous to the Philippines. Listen in this week as Dee delves into the nutritional profile of this amazing tropical nut and why you may want to make it your next pantry staple....

  3. Berry Dirty: Why Blackberries Made the 2025 Dirty Dozen

    This week, Dee dives into the ​recently released Environmental Working Group's (EWG) 2025 ​Shopper's Guide to Pesticides in Produce, commonly known as "The Dirty Dozen and Clean Fifteen ​List​s", with a spotlight on blackberries—a new addition to the Dirty Dozen​ list, coming in at number ten....

  4. New Blood Test Can Reveal Your Ultra-Processed Food Intake

    ​In a groundbreaking new study, researchers have developed a blood and urine test capable of identifying how much ultra-processed food is in your diet. By analyzing metabolites—chemicals produced as the body breaks down food—researchers can now distinguish between individuals who consume high...

  5. Sorghum: The Supergrain Hiding in Plain Sight

    From its impressive nutritional profile to its role in blood sugar balance and gut health, sorghum just might be the next superfood you’ve never heard of. Listen in this week as Dee digs into the ancient grain that’s quietly stealing the spotlight in modern nutrition. Whether you're curious about...

  6. Methyl Adaptogens: Your New Anti-Aging Dream Team

    The results of a new study shows that consumption of polyphenols in certain foods--known as methyl adaptogens--can turn back your biological clock. Listen in this week as Dee discusses the study and reveals the short list of common foods that literally help you age better from the inside out....

  7. Cocoa and Carob: A Sweet Duo for Managing Diabetes

    A new study shows that a specific blend of cocoa and carob powder improves metabolic health markers in people with Type 2 diabetes. Listen in this week as Dee discusses the study, the specific ratio of cocoa to carob used in the study, and how this delicious duo offers a new strategy for…

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  8. Can You Be Healthy with High Cholesterol?

    Groundbreaking new research challenges conventional beliefs about cholesterol and heart disease. A one-year prospective study of 100 metabolically healthy adults following a long-term ketogenic diet found no correlation between extremely high LDL cholesterol and the progression of coronary artery...

  9. Thyroid Signals: What Your Body’s Symptoms Are Really Saying

    If you’re struggling with fatigue, chronic constipation, weight gain, or weight loss resistance, an underactive thyroid could be the hidden cause. Listen in this week as Dee explains how the thyroid gland plays a big part in regulating metabolism, digestion, and energy, and the role of diet and...

  10. Talkin’ Tallow: Is This Rendered Beef Fat Good for Your Health?

    Beef tallow, aka rendered beef fat, was once a staple in American home cooking and fast-food kitchens throughout much of the 20th century. Though it declined in popularity due to concerns over its saturated fat content, it’s now making a comeback. Listen in this week as Dee breaks down the…

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  11. Longtime Efforts to Ban Artificial Food Dyes & Preservatives Finally Coming to Fruition!

    In March 2011, Processed-Free America (aka Center for Processed-Free Living) submitted arguments against artificial food coloring to the United States Center for Food Safety and Applied Nutrition. Now, 14 years later, the country is starting to pay attention. Listen in this week as Dee discusses...

  12. Prickly Power: Unlocking the Health Benefits of Red Cactus Pears

    A staple of the Native American diet for centuries, Red Cactus Pears are packed with incredible health benefits. Listen in this week as Dee discusses why this small, watermelon-like fruit is a true superfood, and how to incorporate it into your meals. Reference: Giraldo-Silva, L., Ferreira, B.,...

  13. Alpha Lipoic Acid: The Universal Antioxidant

    Known as the "universal antioxidant," alpha-lipoic acid (ALA) is a powerhouse for fighting oxidative stress and supporting overall health. Listen in this week as Dee explores how ALA helps combat diabetes, heart disease, Alzheimer’s, fatty liver, and more—plus, why it’s essential for your...

  14. Stop the Microplastics Mayhem! Proactive Steps to Minimize Exposure

    Microplastics are tiny plastic particles—smaller than a grain of sand—shed from bottles, bags, tires, synthetic fabrics, and even cosmetics. Linked to obesity, diabetes, heart disease, Alzheimer’s, and cancer, these invisible invaders are everywhere. Listen in this week as Dee shares nutrition…

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  15. Can Eating Grapes Keep Your Muscles Strong as You Age?

    Could eating a simple bowl of grapes be the key to stronger muscles? A groundbreaking study says yes—especially in aging women. Listen in this week as Dee discusses the findings of this new research ane explores how the 1,600 natural compounds in grapes work together to support lean muscle mass,...

  16. Boost Your Brainpower with Walnuts for Breakfast

    Could your breakfast choice set the tone for sharper thinking all day long? A new study says yes, especially if your breakfast includes walnuts. Listen in this week as Dee breaks down the science behind this brain-boosting nut and how you can easily incorporate it into your diet for lasting...

  17. The Probiotic Shield: Yogurt’s Role in Colon Cancer Risk

    A recent study suggests that long-term yogurt consumption, which typically contains a genus of probiotic Bifidobacterium, is associated with a 20% decreased incidence of colorectal cancer. Listen in this week as Dee explains how Bifidobacterium works in the gut, why it may protect against the...

  18. Heart-Healthy Sips: How 3 Red Juices Can Lower Blood Pressure

    February is Heart Health Month, making it the perfect time to explore the power of nutrition to naturally lower high blood pressure. Listen in this week as Dee discusses the research showing how adding one or more of three powerhouse red juices--beet juice, tomato juice, and pomegranate juice--to...

  19. Acetylcholine: Nature's Nootropic for Boosting Brain Function

    Acetylcholine enhances memory, focus, and muscle function, earning its reputation as a natural nootropic. But, as we age, the body's ability to produce it declines, potentially impacting brain health and physical performance. Listen in this week as Dee explains how acetylcholine is made in the...

  20. Why Iodine Deficiency is Making a Comeback

    A century ago, goiters resulting from iodine deficiency were rampant in people living in inland states from Appalachia and the Great Lakes to the northwest United States---an area that came to be known as the "goiter belt." Iodized salt solved that problem. But now iodine deficiency and goiters…

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  21. A Win for Safer Foods: FDA Finally Bans Red Dye No. 3

    In response to a 2022 color additive petition from consumer advocacy groups, the FDA has finally put a ban on the use of food dye no. 3, a synthetic food coloring linked to health risks like hyperactivity and cancer. Listen in this week as Dee discusses this long-overdue decision and what it…

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  22. Knobby but Nice: Why Celery Root Deserves a Spot on Your Plate

    Celery root (aka celeriac) is an underrated vegetable with big health benefits Listen in this week as Dee explores what makes celery root special, from how it grows and what it tastes like to its impressive nutrition profile. She'll also share the best ways to prepare it, how it differs from…

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  23. The Power of Zinc: Immune Health and Beyond

    In the midst of cold and flu season, zinc is a powerhouse mineral essential for a strong immune system. It is also important for wound healing, testosterone production, and even your sense of taste and smell. Listen in this week as Dee dives into everything you need to know to harness the…

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  24. The Cancer Connection: Seed Oils vs. Omega-3s

    Two studies published in the same week reveal how seed oils like canola, corn, soy and cottonseed may increase inflammation, creating a pathway for cancer to thrive. On the flip side, omega-3-rich fish oils show promise in reducing inflammation and bolstering the immune system. Listen in this…

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  25. Peeling Back the Benefits: The Wonders of Banana Peel Flour

    Peeling Back the Benefits: The Wonders of Banana Peel Flour Most people discard banana peels and only eat the fruit inside. However, research shows that the peels of bananas have many health benefits when dried and ground into flour. Listen in this week as Dee discusses this sustainable,...

  26. Cocoa Science: A Surprising Health Hack

    It is widely known that episodes of high stress, even short ones, temporarily impair artery function. To make things worse, people often eat high-fat foods in times of stress, which puts more stress on the cardiovascular system. Listen in this week as Dee discusses a study showing how drinking a...

  27. Fat Cell Recall: Why Losing Weight Isn’t the End of the Story

    Why do people regain weight more quickly than expected after successfully losing it? Research shows that once someone has been overweight or obese, the genes in their fat cells undergo changes, creating a "memory" of the overweight state. This makes it easier for the body to return to that state....

  28. Cutting Out Sugar Can Positively Change Your Health Within Days or Weeks--Not Months or Years

    Reducing sugar intake not only protects you from the negative effects of overconsumption but also offers surprising benefits that you can experience quickly. Listen in this week as Dee discusses which conditions can be improved by reducing sugar—and what you can do to start limiting your sugar...

  29. Why the 2025 Dietary Guidelines for Americans Likely Won't Take a Stance Against Ultra-Processed Foods

    A promising change for the USDA's 2025 Dietary Guidelines to suggest limiting or avoiding ultra-processed foods has been dashed. A scientific advisory committee has declared there is not enough evidence to recommend avoiding them. Listen in this week as Dee discusses how they came to their...

  30. The Science Behind Your Morning Cup: Health Benefits of Coffee

    While its caffeine content is known for improving cognitive function, the true heroes of coffee are its antioxidants and polyphenols. These compounds may help to ward off or reverse many chronic conditions, proving coffee to be more than just an energizing beverage.Listen in this week as Dee...

  31. Hops & Health: The Surprising Benefits of Beer’s Key Ingredient

    Does beer have a secret superpower? Research shows that moderate, mindful beer enjoyment might be a little healthier than you think. Listen in this week as Dee discusses the research showing the health benefits of the bitter acids and polyphenols found in the compounds that also give beer its...

  32. Air Fryers: Healthy Hack or Just Hype?

    Air fryers have become a popular kitchen tool, and they're generally considered a safer way to create a crispy texture to foods than deep frying, but they do still pose some health risks. Listen in this week as Dee offers valuable insights on the pros and cons of preparing food in an air fryer....

  33. Green and White: How Pepitas and Pumpkin Seeds Boost the Immune System

    'Tis the season for pumping up immune health with pumpkin seeds! Listen in this week as Dee explains the differences between green pumpkin seeds (also known as pepitas) and white pumpkins seeds, and howi Incorporating pumpkin seeds into your diet can give your immune system a natural boost and…

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  34. Grounded in Wellness: The Science Behind Earthing

    Grounding, also known as earthing, is a simple concept that involves connecting the human body with the energy naturally present in the earth. Listen in this week as Dee dives into the science behind its potential health benefits. Learn what earthing is, how it works, and why it may help reduce...

  35. The Arthritis-Nightshade Connection: Myth or Reality?

    There is scant scientific evidence that compounds found in nightshade vegetables—such as tomatoes, potatoes, peppers, and eggplants—aggravate the pain and inflammation of arthritis. However, some people with arthritis feel that eating nightshades make their condition worse...and decades of…

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  36. The Health Secrets of Camel Milk

    Unlike cow milk, camel milk has low levels of lactose, fat, and cholesterol, and is naturally non allergenic. Once only available in the middle east and Africa, farmers in the U.S. are now supplying this nutritious mil to Americans. Listen in this week as Dee explores its unique nutritional...

  37. Mono and Diglycerides: Unmasking the Hidden Trans Fats in Your Food

    The FDA required food manufacturers to remove artificial trans fats from their products by June 18, 2018, due to their negative impact on health. Despite the ban, consumers should still be cautious of foods containing trans fats due to ingredients like mono- and diglycerides, which are not...

  38. Apeel On Your Produce May Not Be Appealing!

    Apeel is an edible coating made of fatty acids that is used on apples and other produce, both conventional and organically grown, designed to extend their shelf life, but there's no label on the produce to let you know it's there. How concerned should you be? Listen in this week as Dee discusses...

  39. The Dark Side of Dark Chocolate: Heavy Metals in Your Favorite Brands

    A recent study found that dark chocolate and other cocoa products are contaminated with lead and cadmium, two neurotoxic metals associated with cancer, chronic diseases, and reproductive or developmental issues, especially in children. Surprisingly, even organic dark chocolate, grown with fewer...

  40. Study Shows Mediterranean Diet May Reduce Your Risk of Covid-19

    A new review study involving over 55,000 people showed that those who chose specific foods while following a Mediterranean Style Diet were less likely to contract Covid-19. Listen in this week as Dee discusses the findings of the study and which foods were the most effective at warding off the...

  41. Does the Vegan Diet Outshine the Mediterranean Diet for Weight Loss and Cardiovascular Health?

    A recent study suggests that a low-fat vegan diet is more effective than a Mediterranean diet for reducing inflammation and promoting weight loss. Listen in this week as Dee discusses the methodology and results of the study, and what they mean for your health. References: Kahleova, H.,...

  42. The AGE Conundrum: Are Your Favorite Foods Harming You?

    The AGE Conundrum: Are Your Favorite Foods Harming You? Advanced Glycation End Products (AGEs) are harmful compounds lurking in everyday foods that have been linked to inflammation, Alzheimer's, diabetes, heart disease, and kidney disease. Listen in this week as Dee explains what foods AGE's are...

  43. Recent Study Sparks New Concerns that Erythritol Increases Risk for Heart Attacks and Strokes

    Erythritol is a common sweetener used in baked goods, beverages, gum, and candy, and is often found in keto-friendly and other reduced-sugar products. However, recent research suggests that consuming even typical amounts of erythritol may elevate the risk of blood clots and cardiovascular events,...

  44. Heart Health & EVOO: Why Less May Be More

    A new study published in the Journal of the American Heart Association explores the effects of extra virgin olive oil (EVOO) on cholesterol and heart health. Researchers found that both high and low usage of EVOO in the diet were linked to reductions in LDL-C, the "bad" cholesterol associated…

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  45. Monch Monch: An Innovative Biohack to Reduce the Impact of Sugar Consumption

    Monch Monch is a revolutionary, tasteless powder that you mix with water before meals to block sugar absorption and minimize insulin and glucose spikes from refined carbs. But does it really work? Listen in this week as Dee explains what Monch Monch is, how it impacts your health, and whether…

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  46. Gut Check: The Surprising Health Impacts of How Often You Poop

    A new study reveals how the frequency of your bowel movements could be an important indicator of your long-term health. Infrequent poopers showed signs of decreased kidney function, while those who went more often than average exhibited signs of impaired liver function. Listen in this week as Dee...

  47. S. Boulardii Hailed as a "Super Probiotic"

    Saccharomyces boulardii is a strain of probiotic yeast that was first isolated from the superfoods mangosteen and lychee fruit in 1923 by the French scientist Henri Boulard (hence the name). Today it is considered a "super probiotic" due to its unique properties and wide range of health benefits...

  48. Gut Health Revolution: Apple Cider Vinegar's Role in Weight Loss

    Studies show that obese individuals have more Firmicutes and fewer Bacteroidetes in their gut bacteria compared to those who are not overweight. Research suggests that consuming apple cider vinegar (ACV) can help improve this ratio. Listen in this week as Dee explains ACV's impact on the gut...

  49. A Newly Discovered Dietary Hazard: TMAO

    Trimethylamine-N-oxide (TMAO) is a harmful compound produced by gut bacteria. Elevated TMAO levels can significantly influence the development of heart disease, type 2 diabetes, chronic kidney disease, cancer, and fatty liver disease. Listen in this week as Dee explains which foods increase the...

  50. Exploring the Planetary Health Diet

    The term "planetary health" refers to the natural systems that are essential for the health and survival of the human population. A commission of leading scientists from 16 countries have developed a "flexitarian" type diet designed to optimize human health and environmental sustainability on...

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ABOUT THIS SHOW

Diet Science is a fun 7 to 8 minute weekly program with insights and straight scoops on today's health and diet issues from Dee McCaffrey, CDC. Dee is an Organic Chemist who lost 100 pounds, nearly half her body weight, and has kept it off for 20 years by staying away from processed foods. She's the author of The Science of Skinny, released by Perseus June 2012, and The Science of Skinny Cookbook, which was released December 2014.

HOSTED BY

Dee and Michael McCaffrey

Frequently Asked Questions

How many episodes does Diet Science have?

Diet Science currently has 300 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.

What is Diet Science about?

Diet Science is a fun 7 to 8 minute weekly program with insights and straight scoops on today's health and diet issues from Dee McCaffrey, CDC. Dee is an Organic Chemist who lost 100 pounds, nearly half her body weight, and has kept it off for 20 years by staying away from processed foods. She's...

How often does Diet Science release new episodes?

Diet Science publishes regularly with 300 episodes available. Check the episode list for the typical release schedule.

Where can I listen to Diet Science?

You can listen to Diet Science on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.

Who hosts Diet Science?

Diet Science is created and hosted by Dee and Michael McCaffrey.
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