5 Reasons Umeboshi Are Incredibly Healthy: Japan’s Superfruit

August 28, 2025

Birgitta Dunckel

5 Reasons Umeboshi Are Incredibly Healthy: Japan’s Superfruit

Fermented Japanese plums offer impressive health benefits—here’s why umeboshi deserves a place in your diet.

What are Umeboshi? The traditional Japanese medicinal fruit

Umeboshi are fermented, salted plums that have been a staple of Japanese cuisine and natural medicine for over 1,000 years. These small, wrinkled fruits with their characteristic sour taste are considered a true superfood in Japan and are often referred to as "natural medicine."

The name Umeboshi literally translates to "dried plum" and describes the elaborate fermentation process where unripe Ume plums (Prunus mume) are fermented with sea salt and often with red shiso leaves.

1. Support for digestion through natural fermentation

Umeboshi are rich in probiotic bacteria that develop during the months-long fermentation process. These natural microorganisms support the gut flora and promote healthy digestion.

Digestive properties:

Stimulation of gastric acid production
Support of nutrient absorption
Promotion of natural bowel movement
Balancing the pH level in the gastrointestinal tract

Studies show that fermented foods like umeboshi increase the number of good bacteria in the gut increase and strengthen the immune system.

2. Natural detoxification and liver protection

The organic acids found in Umeboshi, particularly citric acid and malic acid, support the body's detoxification processes. These acids help the liver process and excrete toxins more efficiently.

Detoxifying effect:

Promotion of liver function
Support in breaking down metabolic waste
Improvement of kidney function
Protection against oxidative Stress

Traditionally, Umeboshi are used in Japan for hangover symptoms because they are believed to accelerate the detoxification of alcohol in the body.

3. Strengthening the immune system through antioxidants

More on this Topic

Surprisingly High in Magnesium: Can Pumpkin Seeds Replace a Supplement?

Pumpkin seeds are among the best plant-based sources of magnesium. Just 30 grams provide a substantial amount of the mineral. But what matters is not only what's inside the seeds — it's also how much of it your body actually absorbs.

Marianne Waldenfels

A Delicate Touch

"Feel good, live better" This podcast episode with Prof. Dr. Helen Abel is all about hands and how to keep them mobile – even with arthritis

Christine Bürg

An interview with

Ginseng During Menopause: What a New Study Shows

Red ginseng has long been used to relieve menopausal symptoms. A new study now adds to the evidence, showing promising effects on several common symptoms.

Hanja Niederhammer

Rye Bread for Gut Health: What Happens After 12 Weeks

When it comes to gut health, few people think of rye bread. Yet this everyday grain provides exactly what our gut bacteria need. A new study shows what can change in the body within just a few weeks.

Marianne Waldenfels

Mundgeruch Close Up Frauengesicht mit Hand vor dem Mund

Bad Breath Despite Brushing: Why Your Tongue Is Often the Culprit

Bad breath is often seen as a sign of poor dental hygiene. Yet it can develop even in people who brush thoroughly. Dentist Dr. Tore Thomsen explains how the tongue and oral microbiome contribute to bad breath — and what new studies on probiotics reveal.

Christine Bürg & Marianne Waldenfels

An interview with

Dr. med. dent. Tore Thomsen

With

Dr. med. dent. Jens Thomsen

Running for Beginners: How Much Training Is Healthy?

How often should beginners run, when should they increase their training, and how important are rest days? Physiotherapist Nils Stützer explains how to build a healthy running routine, what role running technique plays, and how to avoid overuse injuries.

Christine Bürg & Marianne Waldenfels

nils-stuetzer-msk-longevity-experte-esslingen

With

Nils Stützer

Why We Suddenly Feel More Tired in Autumn – and What Can Help

Getting out of bed feels harder, and our energy dips throughout the day. As the days grow shorter, our sleep-wake rhythm can shift too. Here’s how light affects our internal clock – and why the morning hours matter most.

Lena Sämann

Detecting Cancer Before Symptoms Appear: How Early Can We Find It?

Finding cancer early can make a crucial difference – but the benefits of screening vary widely. Radiologist Prof. Dr. Anno Graser explains which methods can save lives and how CT, MRI and AI are changing cancer detection.

Christine Bürg & Marianne Waldenfels

An interview with

Prof. Dr. Anno Graser

Magazine

Find a Doctor

5 Reasons Umeboshi Are Incredibly Healthy: Japan’s Superfruit

What are Umeboshi? The traditional Japanese medicinal fruit