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Dairy Digressions

Dairy Digressions

By: ADSA
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 Welcome to Dairy Digressions, the podcast from the American Dairy Science Association. Every other month, host Matt Lucy, PhD, explores the latest developments, fascinating discoveries, and breaking trends in the world of dairy science. From pioneering technologies to innovative research, we cover a range of topics related to the dairy industry and go behind the scenes of the top labs and minds in dairy research. Listen in as we dig deep into the science of dairy and discover what’s new and exciting in this ever-evolving field.ADSA Natural History Nature & Ecology Science
Episodes
  • Understanding the Dairy Matrix, Its Uses in Human Health and Precision Nutrition, and Why Dairy Is So Cool with Grace Lewis, PhD, and David Everett, PhD

    Understanding the Dairy Matrix, Its Uses in Human Health and Precision Nutrition, and Why Dairy Is So Cool with Grace Lewis, PhD, and David Everett, PhD
    May 31 2025
    We’re celebrating dairy foods in the latest installment of Dairy Digressions! Host Matt Lucy sits down with two of the voices behind the recent Journal of Dairy Science special issue, “Dairy Foods: A Matrix for Human Health and Precision Nutrition.” Devoted to the latest science on dairy food nutrition, the selected articles in this issue emphasize the crucial role dairy plays in human health from infancy through adulthood. Join us with Grace Lewis, PhD, assistant professor of animal and food science and Dairy Innovation Hub Affiliate at the University of Wisconsin (UW) River Falls, Journal of Dairy Science section editor, and guest editor of the special issue, and David Everett, PhD, a principal investigator and international stakeholder–relationship manager at the Riddet Institute, incoming ADSA President, and author in the special issue. Grace introduces the special issue articles and the exciting studies happening around the dairy matrix, which is helping to usher in a new era of nutrition science. This new era recognizes that dairy can’t be reduced to its parts—we need a holistic understanding of how the interconnected matrix profoundly affects digestion, absorption, and how we fuel our bodies. Grace and David are passionate about advancing the science and spreading the story of dairy’s important part in human health. They delve into the history of dairy’s consumer perceptions and the evolving science around how we think about full-fat dairy products in particular. Milk is a whole food that delivers all essential amino acids, meaning it’s a complete protein that’s also highly digestible and a vital source of vitamins and minerals like calcium. David dives further into his article on understanding the physical structures in dairy foods that uniquely fuel the human body. He also answers our burning dairy questions, including what the true color of milk is, how we process the most valuable whey powder, and the scandalous history of margarine and butter. Finally, the group debates whether it’s okay to top your pizza with cottage cheese. Do you have a vote? Sound off in the comments on your favorite podcast platform! Episode Twenty-Seven Show NotesLearn more about Grace Lewis, PhD, and connect with her on LinkedIn, and learn more about David Everett, PhD, and connect with him on LinkedIn. Want even more of the latest dairy food science? Join us atthe 2025 ADSA Annual Meeting in Louisville, Kentucky, this June! Start earning rewards and journal savings via the ADSA Loyalty Rewards Program for the Journal of Dairy Science and JDS Communications.Catch up on the papers and presentation discussed in theepisode:Engaging today’s undergraduate students in the field of dairy science with a focus on the female student population, JDS Communications (2025) Dairy Foods: A Matrix for Human Health and Precision Nutrition—Introduction, Journal of Dairy Science (2025)Dairy Foods: A Matrix for Human Health and Precision Nutrition—The impact of the dairy food matrix on digestion and absorption, Journal of Dairy Science (2025)Dairy Foods: A Matrix for Human Health and Precision Nutrition—Effect of processing infant milk formula on protein digestion and gut barrier health (in vitro and preclinical), Journal of Dairy Science (2025)Dairy Foods: A Matrix for Human Health and Precision Nutrition—The relevance of a potential bioactive ingredient; The milkfat globule membrane, Journal of Dairy Science (2025)
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    1 hr
  • Feeding Fats and Fatty Acids, Finding Transition Balance, and Making Science Actionable with Adam Lock, PhD

    Feeding Fats and Fatty Acids, Finding Transition Balance, and Making Science Actionable with Adam Lock, PhD
    Apr 30 2025
    Growing up on a dairy farm in the United Kingdom, Adam Lock, PhD, always thought he would take over the family business and milk cows for a living. Instead, he now works to help dairy professionals increase their cattle’s health, productivity, and profitability through nutrition. Join us to find out how!Host Matt Lucy sits down with Adam, a professor and associate chair for farm operations in the Department of Animal Science, and interim chair of the College of Veterinary Medicine’s Department of Large Animal Clinical Sciences at Michigan State University. He explains the central focus of his research on fatty acid digestion and metabolism in the dairy cow and the impact of bioactive fatty acids on animal production and human health. The two focus on Adam’s recent work optimizing fat-feeding strategies during the transition period. The previous dogma around feeding fresh cows recommended against supplementing fats, but that is now changing. Adam and his team are proving that particular blends of individual fatty acids can help fill a cow’s unique needs during this time, promote energy balance, and increase milk production. The pair also discuss Adam’s focus on making all of his work immediately applicable to farmers and industry professionals, and the importance of extension work in dairy. Finally, he shares his philosophies around ensuring his lab is fun for students, the best way to connect with and train students, and how to embrace the fortuitous twists and turns your career in science might take. Episode Twenty-Six Show NotesLearn more about Adam Lock and connect with himon LinkedIn. Are you interested in learning applied nutrition strategiesdirectly from Adam? Join us at the 2025 ADSA AnnualMeeting in Louisville, Kentucky, this June! Adam is speakingduring our first-ever applied nutrition symposium and panel discussion focused on feeding high oleic soybeans and balancing diets for milk fat.Start earning rewards and journal savings via the ADSA Loyalty Rewards Program for the Journal of Dairy Science and JDS Communications.Catch up with the discussion of dairy nutrition dogma in Arandom view of the world: Because we are never absolutely sure of anything from Normand St-Pierre at the 2024 ADSA Annual Meeting. Catch up on the papers and presentation discussed in theepisode:Effects of raw and roasted high oleic soybeans on milk production of high-producing dairy cows, Journal of Dairy Science (2024)Effects of increasing dietary inclusion of high oleic acid soybeans on milk production of high-producing dairy cows, Journal of Dairy Science (2024) Milk production responses of dairy cows to fatty acid supplements with different ratios of palmitic and oleic acids in low-and high-fat basal diets, JDS Communications (2024) Increasing palmitic acid and reducing stearic acid content of supplemental fatty acid blends improves production performance of mid-lactation dairy cows, Journal of Dairy Science (2024)Oleic acid abomasal infusion limits lipolysis and improves insulin sensitivity in adipose tissue from periparturient dairy cows, Journal of Dairy Science (2023)
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    42 mins
  • Muscle, Metabolism, and Milk—Dairy and Dairy Protein’s Role in Healthy Aging in Childhood and Beyond with Daniel Moore, PhD

    Muscle, Metabolism, and Milk—Dairy and Dairy Protein’s Role in Healthy Aging in Childhood and Beyond with Daniel Moore, PhD
    Mar 29 2025

    Join us as we sit down with Daniel Moore, PhD, professor of muscle physiology at the University of Toronto and invited speaker at the ADSA Annual Meeting. He explains how muscle serves as the body’s primary storage for amino acids, the building blocks crucial for immune function, and emphasizes its importance beyond just physical strength into healthy aging and metabolic health. In his lab, he’s working to understand which foods—and which types of high-quality protein—can best support recovery and muscle development, with a focus on childhood. Are children just little adults, for example, or are they entirely different? How can nutrition best support them after exercise and help with the healthy muscle growth that will carry them into adulthood? Matt and Daniel discuss the importance of milk as a whole food rich in essential amino acids that can underpin this critical muscle development, focusing on his interest in leucine. He highlights the importance of teamwork and mentorship in his lab, sharing his strategies for fostering a supportive atmosphere for his students, drawing from his time in industry at Nestlé’s research center in Switzerland (including his experience being woken up by cowbells). Finally, the two digress on the fascinating topic of muscle preservation in hibernating animals and consider its potential relevance to dairy cows.

    Episode Twenty-Five Show Notes

    Learn more about Daniel Moore and connect with him on LinkedIn.

    Are you interested in even more breaking dairy foods science? Join us at the 2025 ADSA Annual Meeting in Louisville, Kentucky, this June!

    The Journal of Dairy Science is releasing a forthcoming special issue, Dairy Foods: A Matrix for Human Health and Precision Nutrition, in April. Look out for the latest research on this topic!

    Catch up on the papers, news articles, and podcasts discussed in the episode:

    Postexercise dietary leucine retention for whole-body anabolism is greater with whey protein isolate and fish-derived protein hydrolysate than nonessential amino acids in trained young men, International Journal of Sport Nutrition and Exercise Metabolism (2024)

    Estimation of skeletal muscle mass in 4-year-old children using the D3-creatine dilution method, Pediatric Research (2023)

    Protein quality and the food matrix: Defining optimal versus maximal meal-based protein intakes for stimulating muscle protein synthesis, Applied Physiology, Nutrition, and Metabolism (2023)

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    50 mins
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