From our other sites
The story
Freelance announcer Kasumi Mori revealed on TBS Radio how she lost 7kg in three months. “There’s just no way I could do a starvation diet,” she said — the method she landed on was one that avoids spiking her blood sugar.
On 5ch, some users explained the mechanics of insulin and fat storage, while others speculated that a drug (Mounjaro) might be the real reason behind the weight loss, and skepticism toward extreme dieting also made the rounds.
Sun, 8/23, 4:14 PM
Freelance announcer Kasumi Mori (31) made a guest appearance on the August 22 broadcast of TBS Radio’s “Savorino presents My Reward Time” (Saturdays, 8:00 PM). She revealed how she lost 7kg in three months.
Making her second straight appearance on the show, Mori was asked by host Miki Fujimoto, “You’ve dieted before, right?” Mori explained what got her started: “Yeah, about a year after going freelance I put out a photo book, and around that time I did a body makeover. Then when I became an ambassador and model for a lingerie brand, I needed to slim down a bit more, and that’s when I lost about 7kg.”
Source: news.yahoo.co.jp / Original article here
What people said
That's pointless — you rebound too easily on that.
So basically… she's on Mounjaro?
Ah, that stuff exists now so of course it's easy.
Even a small amount of white rice or mochi (rice cake) spikes it shockingly fast.
Probably better for your body not to eat them at all.
It had a moment a while back, but there were a lot of mishaps so I'd guess fewer people do it now.
Isn't insulin the hormone that lowers blood sugar?
like that one commercial.
My doctor keeps telling me to lose weight, but once I switched my goal to just maintaining, I felt a lot more at ease.
Depends on the person. If you're used to mountain climbing or hiking, you walk more efficiently, so even carrying a 15kg pack you won't lose that much.
80% full or even a bit before that is fine — the key is whether you can hold yourself back even when you still want more.
Once that becomes a habit, you really do start feeling satisfied on small portions. Honestly, I think everyone eats too much these days…
You can get scary skinny on that stuff no problem.
It doesn't, right?
Guess that's because people eat it together with bread or rice.
Apparently you don't even need to eat vegetables first.
As long as it's not carbs.
That's why it's about eating in a way that doesn't trigger much insulin release — a diet that keeps sugar as low as possible.
Ah, got it, makes sense.
Background and Key Points
The “don’t spike your blood sugar” approach Mori describes is usually called the teitou-inshurin (low-insulin) diet in Japan, a trend that peaked roughly a decade ago and works by limiting insulin spikes from refined carbohydrates — white rice, bread, sweets — on the theory that insulin is the hormone that drives glucose into fat storage. It doesn’t require calorie starvation; it’s built around food order and carb substitution rather than eating less. Mori’s framing fits a broader wave of Japanese celebrities and TV personalities publicizing blood-sugar-conscious eating as a “healthier” alternative to visibly extreme dieting, especially now that she’s a lingerie-brand ambassador with obvious incentive to look toned rather than gaunt.
The thread’s real fault line isn’t over whether the science is sound — it’s over whether to believe her account at all. A sizable contingent assumes any high-profile figure quietly losing significant weight now must be on Mounjaro (tirzepatide), a GLP-1/GIP drug approved in Japan for diabetes but increasingly prescribed off-label at private clinics for weight loss, since it’s become the default suspicion whenever a celebrity’s transformation looks too fast or too clean.
What outside readers will likely miss is that rice occupies an outsized cultural position in Japan, which is why one poster jokes you “can’t say that on TV” that white rice is effectively poison — criticizing a national dietary staple carries more weight there than it would elsewhere. Also unaddressed in the thread: Mounjaro for cosmetic weight loss is not covered by national health insurance and is obtained largely through private telehealth clinics, an access/cost detail that’s central to why the drug is simultaneously trendy and controversial in Japan.
*This article is excerpted and summarized from the 5ch (Entertainment/Sports News+) thread “Kasumi Mori Loses 7kg in 3 Months, Reveals Diet Method: ‘Starving Myself Is Impossible’ — She Landed on ‘Don’t Spike Your Blood Sugar’.”
Leave a Reply