LOK Podcast Episode 5 | Dietary Protein, Sugar Intake and Kidney Stones - Melanie Betz of TheKidneyDietitian.org





In this episode, I talked to Melanie Betz, a registered dietitian who is board certified in renal nutrition and works in the nephrology department at the University of Chicago Medical Center.

Melanie is passionate about helping people with kidney stones and Chronic Kidney Disease understand that healthy eating does not have to be complicated and can be delicious! Her research interests include ways to increase patient knowledge and adherence to healthy eating, frailty and ways to reduce risk for poor health outcomes in older adults, and plant-based diets.

In her free time, she enjoys cooking, yoga, wine tasting and cheering on her Michigan State Spartans! She also volunteers with the National Kidney Foundation of Illinois and the Healthy Aging Dietetic Practice Group.

Check out Melanie's blog here or connect with her on Instagram, Facebook or Twitter!

Melanie and I talked about the effects of dietary protein on kidney stone formation, as well as the effects of sugar intake. In addition, Melanie also took the time to answer some questions from the Low Oxalate Kitchen Facebook group.

If you liked this episode, please let us know!




[02:03] How Melanie got into nutrition and dietetics
[05:05] Transitioning into nephrology
[07:20] Research that Melanie is involved in
[09:14] Urine chemistry basics - supersaturation and pH
[13:25] Recommendations for daily water intake
[16:23] "Alkaline diets" and Potential Renal Acid Load (PRAL)
[21:01] Protein and the formation and prevention of kidney stones
[30:00] Recommendations for not overdoing it on dietary protein
[32:42] Protein and oxalate production in the liver
[33:03] Protein, purines, and kidney stones
[38:30] Sugar and kidney stone formation
[44:50] Low oxalate lists
[48:39] Low oxalate snack ideas
[52:46] How dietary phosphorous affects blood and urine phosphorous
[53:41] What is glomerular filtration rate (GFR)
[54:34] Vitamin D's affect on urine calcium and kidney stones
[57:10] General recommendations for protein with PKD, MSK
[62:40] Tips for maintaining a low oxalate diet



The Kidney Dietitian - Melanie's Blog
Melanie's Instagram
Melanie's Facebook Page
Kidney Healthy Recipes
Michigan State University
Rush University Dietetics
University of Chicago Medical Center
Melanie's Publications and Presentations
What is supersaturation?
What is PRAL & How Does it Affect Kidneys?
24 Hour Urine Collection - LithoLink
Harvard Oxalate List
Melanie's version of Harvard Oxalate List
Polycystic kidney disease (PKD)
Medullary sponge kidney (MSK)


1 comment

carol lavoie

hello melanie… I just purchased the winter diet ebook for $19.99… more than half of these recipes are not foods that i can successfully eat. I’d really like a refund for my purchase. So sorry but i just don’t eat these kinds of foods.
Please refund my payment on my visa card. I hope to hear back from you.
thank you
blessings to you and the work you are doing to help keep us healthy

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