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Nutrition Nugget: Okinawan Sweet Potatoes

Published on: 13th February, 2026

Nutrition Nugget! Bite-sized bonus episodes offer tips, tricks and approachable science. This week, Jenn is talking about Okinawan Sweet Potatoes. You've probably seen these purple beauties in your grocery store, but what’s so “super” about them? With their striking white exterior and vibrant purple interior, these potatoes offer substantial nutritional benefits, from high antioxidant levels to potential longevity benefits. Here's the catch: they also contain a whopping 61 grams of carbs per cup. How can a high-carb food support blood sugar balance? Well, the secret is in the way you prepare them. Jenn breaks down the fascinating science behind these potatoes, including their surprising glycemic index range and connection to one of the world's longest-living populations. Tune in to learn about this superfood and decide if you want to add it to your grocery list. Like what you're hearing? Be sure to check out the full-length episodes of new releases every Wednesday. Have an idea for a nutrition nugget? Submit it here: https://asaladwithasideoffries.com/index.php/contact/

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Nutrition Nugget: Cool Your Rice

KEYWORDS: Jenn Trepeck, Nutrition Nugget, Salad With A Side Of Fries, Health Tips, Wellness Tips, Okinawan Sweet Potato, Purple Sweet Potatoes, Japanese Sweet Potatoes, Beni Imo, Hawaiian Sweet Potatoes, Antioxidants, Anthocyanins, Resistant Starch, Blood Sugar Balance, Glycemic Index, Vitamin A, Potassium, Fiber, Anti-Inflammatory Foods, Longevity Diet, Blue Zones, Okinawa Japan, Health Span, Superfoods, Nutrient Dense Foods, Immune Support, Cardiovascular Health, Hormone Production, Cancer Prevention, Chronic Disease Prevention, Short Chain Fatty Acids, Colon Health, Insulin Sensitivity, Vitamin C, B Vitamins, Morning Glory Family, Cooking Methods, Steaming Vegetables, Boiling Potatoes, Resistant Starch Benefits, Anti-Aging Foods, Skin Health, Micronutrients, Plant-Based Nutrition, Whole Foods, How To Cook Okinawan Sweet Potatoes For Blood Sugar Balance, Purple Sweet Potato Antioxidant Benefits Compared To Blueberries

Transcript
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[00:00:28] Have you had these? Maybe you've seen them in your grocery store. So they are absolutely delicious. And I know I say that and you're probably rolling your eyes because let's be real. I never met a potato I didn't like, right? But one of my favorites is the Japanese sweet potato. That one is purple on the outside and white on the inside.

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[00:01:20] So then it became a staple of Japanese nutrition. So they're named after the island of Okinawa, which happens to be one of the places where people have the longest life expectancies in the world. And I wanna point out too, that's not just lifespan, it's health span. And I don't think it's a coincidence. I think these, you know, crops, the Okinawa and Sweet potato plays into that.

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[00:02:12] According to the Nutrition Center at the University of Hawaii, a serving size of 171 grams, so that's a little less than a cup. It was like 0.8 or 0.9. 80, 90% of a cup. So that quantity gives us 251 calories, zero grams of fat, 61 grams of total carbs with six grams of fiber and one gram of protein, plus 812 milligrams of potassium.

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[00:03:10] With the antioxidants, we can focus on anti-inflammatory activity, and we're gonna come back to the antioxidants in a second. With six grams of fiber, we think satiety and blood sugar balance. Now, if you're a longtime listener, I hear you because you're thinking, wait a minute, I heard when you said 61 grams of total carbs in that cup.

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[00:03:56] There are a couple factors at play. The first is the [00:04:00] antioxidant content, which again, we're gonna come back to that. And the second is how they're cooked. So if they're boiled or steamed. They'll be low glycemic. Baking makes them high glycemic because the starches gelatinize. And then if you think back to our nutrition nugget called Cool, your rice.

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[00:04:40] Now on the antioxidant front, so Okinawa and sweet potatoes have anthocyanins. It's the same antioxidant as blueberries and red grapes and red cabbage, which by the way, we could have guessed based on their color. And for perspective, it looks like Okinawa and sweet [00:05:00] potatoes have 150% more antioxidants than blueberries.

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[00:05:26] Chronic diseases because again, it's how antioxidants work with cells and reduce inflammation. And then we also have that vitamin C that's additional immune support specifically for women. The combination of vitamins and minerals and the fiber seem to have support for hormone production, which is interesting.

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[00:06:12] They're all in this camp. They are very sweet, like they almost have like a honey flavor. Sorts. So you can steam them, you can use them in sweet or savory dishes, just like all potatoes, we're gonna cook them then. Cool. Or refrigerate them to develop that resistant starch, and sure, you can then heat them up again after that.

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[00:06:54] Connect with me on Instagram or all social media. I am at Jenn Trepeck, [00:07:00] J-E-N-N-T-R-E-P-E-C-K. Website is a salad with a side of fries.com. Pick your platform, send a message. Dr. Tyann Mueller, thank you. Thank you again for joining us this week. Thank you, Jenn. Thanks everybody. Absolutely friends. If you're not already become a member, join us in the Happy Healthy Hub.

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[00:07:32] Well friends, that's it for today's episode of Salad with a Side of Fries. Congratulations for making yourself and your health a priority. Thanks so much for joining us. Be sure to click subscribe or follow on your favorite podcast platform. Share us with a friend and we'll be back next week. Always remember you deserve it and you are worth it.

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About the Podcast

Salad With a Side of Fries Nutrition, Wellness & Weight Loss
Nutrition tips that actually work. Real-life healthy eating, balanced diet tools, and weight loss tips you can use today with coach Jenn Trepeck.*

If you have searched for nutrition tips, tried to keep a healthy lifestyle, or felt stuck following popular weight loss tips, this podcast is for you. Get straightforward wellness advice that works in real life, plus strategies for a balanced diet, sustainable healthy eating, and a smarter approach to fitness and nutrition. Is your diet making you hungrier, crankier, or less healthy? Tune in and find out.*

Free gift: Schedule a 15-minute curiosity call with Jenn to explore what is possible for you. https://asaladwithasideoffries.com/contact/

Welcome to Salad with a Side of Fries, where wellness meets real life. Award-winning host Jenn Trepeck, health and lifestyle coach and author of Uncomplicating Wellness, cuts through the noise with clear answers you can trust. Ranked in the top 1.5% of podcasts worldwide, the show won Ear Worthy’s Best Health Podcast in 2024 and 2025 and was nominated for Best Independent Podcast both years. Jenn also won Women Who Podcast’s Stellar Interview award in 2025 after being named one of Podcast Magazine’s 40 under 40 in 2022.

Jenn’s motto is “wellness without the weirdness.” With more than 17 years coaching after solving her own food struggles, she knows how confusing the industry can be. Each week you get the foundations of a balanced diet, sustainable healthy eating, metabolism basics, and long-term holistic health, plus straight talk on fad diets and supplements.

What you will get by listening:
✅How to eat and how to cheat, guilt-free
✅Nutrition tips that work in the real world
✅Weight loss tips that are effective, never restrictive
✅How to build a balanced plate at home, on the road, and eating out
✅Smart strategies for sustainable habits that include your favorite foods
✅Evidence-based insights on fitness and nutrition
✅Conversations about holistic health that go beyond food
✅Wellness advice you can use right away


About Jenn Trepeck:
Jenn is a health coach, speaker, and consultant who blends humor with practical science. She has helped thousands improve energy, metabolism, and confidence in their choices through one-on-one coaching, group programs, her book, and this podcast.

Connect with Jenn and the show:
Instagram: https://www.instagram.com/jenntrepeck/
Instagram: https://www.instagram.com/saladwithasideoffriespod
TikTok: https://www.tiktok.com/@jenntrepeck
Facebook: https://www.facebook.com/JenniferTrepeck/
Facebook Group: https://www.facebook.com/groups/425796548337541/
Website: https://asaladwithasideoffries.com/

If you are ready to trade guilt for freedom, confusion for clarity, and boring salads for fries on the side, press play. Health gets doable here.

*These statements have not been evaluated by the Food and Drug Administration. This podcast and its guests are not intended to diagnose, treat, cure, or prevent any disease.

About your host

Profile picture for Jennifer Trepeck

Jennifer Trepeck

“My passion for nutrition and helping others stems from “kicking my food issues” with my own weight management saga.” ~ Jenn

I believe that the greatest accountability is paying it forward! That’s why I teach the nutrition education we are all supposed to know but no one ever taught us, along with the science behind food, fitness, and health.

After I graduated from the University of Michigan Ross School of Business, I founded Better Life Now LLC while working full-time in hedge funds. In 2019, I took my practice from side-hustle to full-time self-employment and launched my podcast, Salad With a Side of Fries. On the show, we offer science-based tips and tricks for how to achieve wellness and weight loss for real life – because who wants a life without fries or dessert?!

Topics we tackle on the podcast include debunking fad diets, food myths, misinformation in marketing, bad science, and general nutrition. I encourage guests whose expertise is different from my own focus on weight management to bring their unique, fact-based perspectives to talk about subjects they are educated in and passionate about.

Due to my decade-long experience of working with clients, I have gained insight into the health and food industry and the how-tos of building a business.

Some specific health and wellness topics I can speak to include debunking fad diets, exposing the BS we are fed by the food and diet industry, how the people around us can positively and negatively impact our health journey, and shifting mindsets in order to overcome inappropriate barometers of success to instead achieve happy, healthy, and meaningful change.

On the subject of business, I can help you by teaching my critical pieces every entrepreneur should know, how to make your side-hustle into your full-time job, ways to sustainably achieve success without burning out, contemporary networking, and how to prioritize wellness while pursuing your projects.

When I find some free time, I’m typically working out at Physique57, discovering hidden gem restaurants in NYC, or traveling to spend time with friends and family.

I’d love to have an in-depth conversation with you, whether it’s leveling up in business or debunking food myths!