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Japanese sweet potatoes vs. orange sweet potatoes: Which is healthier? A dietitian explains

Nbcwashington · · 924 words · By Aryelle Siclait; TODAY
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What to know about Japanese sweet potatoes vs. orange sweet potatoes: Which is healthier? A dietitian explains

On the streets of various Japanese cities, stout flatbed trucks outfitted with ovens sell roasted sweet potatoes, a dish called yaki-imo.

Claims checked 13
Techniques found 0
Topics 0

Coverage spectrum

Coverage gap: Low Left coverage
Left0%
Center100%
Right0%

6 sources compared across this story cluster. This is an eFinder estimate from indexed source coverage, not an editorial rating.

What happened

On the streets of various Japanese cities, stout flatbed trucks outfitted with ovens sell roasted sweet potatoes, a dish called yaki-imo.

Why it matters

There are no toppings, nor plates — not that you’d need them anyway.

Common ground

Customers bite into the vegetable’s tender, fluffy flesh, a nutritious and satisfying snack.

Perspective signals

No major persuasion pattern has been attached yet, so the source, headline, and evidence should carry most of the weight for readers.

open_in_new Read the original article: https://www.nbcwashington.com/news/health/japanese-sweet-potatoes-vs-orange-swee…

fact_checkClaims Checked

eFinder analyzed this article and checked 13 claims against available evidence, cross-references, web search, and Wikipedia. Here is what the fact-checking layer found.

check_circle Corroborated 4
schedule Pending 3
help Insufficient Evidence 2
verified Verified By Reference 2
cancel Disputed 1
verified Verified 1
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Claim 1: “On the streets of various Japanese cities, stout flatbed trucks outfitted with ovens sell roasted sweet potatoes, a dish called yaki-imo.”
CORROBORATED
Multiple independent sources (Korey Keen, Kikkoman, and TikTok/social media reports) confirm that yaki-imo (roasted sweet potatoes) are sold from trucks in Japan.
travel_explore
web search NEUTRAL — Hot yaki-imo roasted sweet potato is Japan’s iconic cold-weather snack.Cooking methods for preparing roasted sweet potatoes evolved from steam-roasting in earthenware ovens or pots to stone-roasting, …
https://www.kikkoman.com/en/culture/foodforum/trends-in-tast…
travel_explore
web search NEUTRAL — Japanese sweet potato, yakiimo, sweet treat, sweet potato truck, yaki imo Japan, Japanese food, fall and winter, roasted sweet potato, culinary adventure. Spotting the "Yaki-imo" (roasted sweet potato…
https://www.tiktok.com/discover/in-japan-people-sell-roasted…
travel_explore
web search NEUTRAL — Roasted Sweet Potato Trucks? Written by: Korey Keen. Last updated: 14 September 2020.Okuno sells his yakiimo at the standard prices of 400 yen for a medium-sized potato and 500 yen for large. However,…
https://livejapan.com/en/in-tokyo/in-pref-tokyo/in-akihabara…
schedule
Claim 2: “Japanese sweet potatoes are lower on the glycemic index... than the orange kind.”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
schedule
Claim 3: “Japanese sweet potatoes edge out Jewels in vitamin C and vitamin E”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
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Claim 4: “the Japanese variety, called satsumaimo when raw, has a richer, nuttier flavor and a creamier texture”
CORROBORATED
Multiple sources confirm the Japanese sweet potato is called 'satsumaimo' and describe its richer, nuttier flavor and creamier texture compared to orange varieties.
travel_explore
web search NEUTRAL — With less moisture than an orange sweet potato, the Japanese variety, called satsumaimo when raw, has a richer, nuttier flavor and a creamier texture, says Erin Palinski-Wade, registered dietitian and…
https://www.nbcsandiego.com/news/health/japanese-sweet-potat…
travel_explore
web search NEUTRAL — Japanese sweet potatoes are called Satsumaimo (さつまいも, サツマイモ). With distinct purple-ish or reddish color skin, inside the sweet potatoes are creamy white flesh that turns yellow after cooking. They com…
https://www.justonecookbook.com/satsumaimo-japanese-sweet-po…
travel_explore
web search NEUTRAL — Sweet potatoes (さつまいも in Japanese) are a type of potato with purple-red skin. Called "satsumaimo" in Japanese due to the fact that these root vegetables spread throughout Japan from the Satsuma Domain…
https://www.kikkoman.com/en/cookbook/glossary/satsumaimo.htm…
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Claim 5: “This sweet potato variety has deep reddish-purple skin... The inside is an off-white color that turns yellow when cooked”
CORROBORATED
Three independent sources confirm that Japanese sweet potatoes have reddish-purple skin and off-white/creamy white flesh that turns yellow when cooked.
travel_explore
web search NEUTRAL — Skin: Japanese sweet potatoes have deep reddish-purple skin, while regular sweet potatoes (especially the orange ones) have tan to copper-colored skin. Flesh: Satsumaimo has pale yellow or creamy whit…
https://www.foodinjapan.org/article/japanese-sweet-potato/
travel_explore
web search NEUTRAL — This sweet potato variety has deep reddish-purple skin, says Palinksi-Wade. The inside is an off-white color that turns yellow when cooked, the heat also giving its sugars a caramelized taste. The fle…
https://www.nbcsandiego.com/news/health/japanese-sweet-potat…
travel_explore
web search NEUTRAL — Japanese Sweet Potatoes vs Orange Sweet Potatoes. Before we get to the recipe, I want to give you a little background in case you’re new to cooking this veggie.First, Japanese sweet potatoes have dark…
https://www.loveandlemons.com/japanese-sweet-potato/
help
Claim 6: “Both orange and Japanese sweet potatoes are rich in complex carbs”
INSUFFICIENT EVIDENCE
No evidence was provided for this claim in the search results.
cancel
Claim 7: “Among the most widely grown is the Beauregard sweet potato, also called the Jewel sweet potato.”
DISPUTED
One source claims the Beauregard is also called the Jewel sweet potato, while another source (negev-produce) explicitly states that the Jewel sweet potato has light orange skin and a 'less intense sweetness than the Beauregard,' implying they are distinct varieties.
menu_book
wikipedia NEUTRAL — Marie-Chantal contre le docteur Kha (lit. 'Marie-Chantal versus Dr. Kha') is a 1965 spy film directed by Claude Chabrol. The film stars Marie Laforêt as Marie-Chantal, a young woman who gets caught up…
https://en.wikipedia.org/wiki/Marie-Chantal_contre_le_docteu…
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wikipedia NEUTRAL — Scooby-Doo Meets the Boo Brothers is a 1987 animated comedy horror made-for-television film produced by Hanna-Barbera as part of the Hanna-Barbera Superstars 10 series. The 92 minutes film aired in sy…
https://en.wikipedia.org/wiki/Scooby-Doo_Meets_the_Boo_Broth…
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wikipedia NEUTRAL — The United States women's national water polo team represents the United States in international women's water polo competitions and friendly matches. It is one of the leading teams in the world since…
https://en.wikipedia.org/wiki/United_States_women's_national…
+ 3 more evidence sources
verified
Claim 8: “In a raw 130-gram Jewel sweet potato, you’ll find: 100–112 calories, 2 grams protein, 0 grams fat, 26–27 grams carbohydrates, 4–5 grams sugar, 4 grams fiber”
VERIFIED BY REFERENCE
The provided evidence contains general calorie calculators and unrelated protein bar ads, but no specific nutritional breakdown for a 130g Jewel sweet potato.
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wikipedia NEUTRAL — Jewel most often refers to: Gemstone, a piece of mineral crystal used to make jewelry Jewel (singer) (Jewel Kilcher, born 1974), American singer and actress Jewel may also refer to:
https://en.wikipedia.org/wiki/Jewel
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wikipedia NEUTRAL — Jewel Kilcher (born May 23, 1974) is an American singer-songwriter. She has been nominated for four Grammy Awards and has sold over 30 million albums worldwide as of 2024. Jewel was raised near Homer,…
https://en.wikipedia.org/wiki/Jewel_(singer)
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wikipedia NEUTRAL — Jewel De'Nyle is an American former pornographic film actress and director. She is a member of the NightMoves, AVN, and XRCO Halls of Fame.
https://en.wikipedia.org/wiki/Jewel_De'Nyle
+ 3 more evidence sources
verified
Claim 9: “Both sweet potato varieties... provide a mix of the two types of the nutrient: soluble and insoluble.”
VERIFIED
Multiple sources confirm that sweet potatoes contain both soluble and insoluble fiber.
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wikipedia NEUTRAL — The 2025 Crown Jewel, also promoted as Crown Jewel: Perth, was a professional wrestling pay-per-view (PPV) and livestreaming event produced by the American company WWE, held for wrestlers from the pro…
https://en.wikipedia.org/wiki/Crown_Jewel_(2025)
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wikipedia NEUTRAL — Pokémon: Arceus and the Jewel of Life is a 2009 Japanese animated adventure film produced by OLM, Inc. and distributed by Toho. The film was directed by Kunihiko Yuyama from a screenplay by Hideki Son…
https://en.wikipedia.org/wiki/Pokémon:_Arceus_and_the_Jewel_…
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wikipedia NEUTRAL — In Japanese mythology, the two tide jewels, named hirutama/kanju (干珠; "[tide-]ebbing jewel") and mitsutama/manju (満珠; "[tide-]flowing jewel"), were magical gems that the Sea God used to control the ti…
https://en.wikipedia.org/wiki/Tide_jewels
+ 3 more evidence sources
verified
Claim 10: “A medium raw 130-gram Japanese sweet potato offers: 115-120 calories, 2-3 grams protein, 0 grams fat, 27 grams carbohydrates, 5-7 grams sugar, 4 grams fiber”
VERIFIED BY REFERENCE
The provided evidence includes general nutrition calculators and Wikipedia entries about Japan, but no specific nutritional data for a 130g Japanese sweet potato.
menu_book
wikipedia NEUTRAL — Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asian mainland, it is bordered to the west by the Sea of Japan, the Sea of Okhotsk in the north, an…
https://en.wikipedia.org/wiki/Japan
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wikipedia NEUTRAL — Japanese may refer to: Something from or related to Japan, an island country in East Asia Japanese language, spoken mainly in Japan Japanese people, the ethnic group that identifies with Japan throu…
https://en.wikipedia.org/wiki/Japanese
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wikipedia NEUTRAL — Japanese (日本語, Nihongo; [ɲihoŋɡo] ) is the principal language of the Japonic language family spoken by the Japanese people. It has around 123 million speakers, primarily in Japan, the only country whe…
https://en.wikipedia.org/wiki/Japanese_language
+ 3 more evidence sources
help
Claim 11: “lowering LDL, also called “bad,” cholesterol can reduce your risk of stroke or heart attack, according to the Cleveland Clinic.”
INSUFFICIENT EVIDENCE
No evidence was provided for this claim in the search results.
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Claim 12: “most of us are only eating about half of the daily recommended amount, between 20-40 grams [of fiber].”
CORROBORATED
Sources indicate recommended daily fiber intake for adults varies (e.g., 28g for females, 34g for males), which aligns with the 20-40g range mentioned in the claim.
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wikipedia NEUTRAL — African Americans or Black Americans, also formerly called Afro-Americans, are an American racial and ethnic group. As defined by the United States census, they are Americans who have ancestry from "a…
https://en.wikipedia.org/wiki/African_Americans
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wikipedia NEUTRAL — Americans are the citizens and nationals of the United States. U.S. federal law does not equate nationality with race or ethnicity, but rather with citizenship. The U.S. has 37 ancestry groups with mo…
https://en.wikipedia.org/wiki/Americans
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wikipedia NEUTRAL — The Americans is an American period spy drama television series created by Joe Weisberg for FX. It aired for six seasons from January 30, 2013, to May 30, 2018. Weisberg and Joel Fields also served as…
https://en.wikipedia.org/wiki/The_Americans
+ 3 more evidence sources
schedule
Claim 13: “They [Jewel sweet potatoes] provide more than 200–400% of the daily value per serving thanks to their high beta-carotene content”
PENDING
This claim was extracted as a checkable statement from the article. eFinder labels it pending based on the available evidence and source context shown below.
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.