A panel of 300 Japanese physicians has cast their votes to determine the most nutritious foods on the planet, and the results may challenge your grocery list. From familiar superfoods like avocado and broccoli to a polarizing fermented favourite, the list reveals what medical experts truly believe belongs on your plate.
In a special episode of the Japanese TBS programme Meii no THE Taikoban, 300 medical professionals participated in a unique ballot: each doctor selected what they considered the single healthiest food. The outcome is a top ten ranking that blends everyday staples with traditional Japanese ingredients, offering science-backed insights into optimal nutrition.
The Top 10 Health Foods, According to 300 Doctors
10. Apples
Dr. Takuji Shirasawa, a medical doctor specialising in longevity, explains that apples contain pectin, a soluble fibre that helps regulate post-meal blood sugar spikes, improves bowel movements, and may reduce stroke risk. Dr. Yoshio Otani adds that the fruit’s high polyphenol content acts as a powerful antioxidant, potentially alleviating bronchitis and supporting healthy blood pressure.
9. Kimchi
This fermented Korean staple packs a probiotic punch. One gram of kimchi contains approximately 100 million lactic acid bacteria—comparable to a single serving of probiotic yogurt. Unlike animal-based probiotics, the plant-derived lactic acid bacteria in kimchi are more resilient, surviving stomach acid to reach the intestines where they aid digestion, prevent constipation, and bolster immune function.
8. Avocado
Long celebrated as a superfood, the avocado earns its place through dense nutrition. Its unsaponifiable soybean compounds have been linked to reduced joint inflammation, particularly in knee osteoarthritis. The fruit also supports detoxification, lowers LDL cholesterol, and helps regulate blood pressure.
7. Tomatoes
Dr. Toshio Akitsu, director of Akitsu Hospital in Tokyo, highlights lycopene as the tomato’s star component. This antioxidant protects blood vessels by reducing harmful LDL cholesterol while boosting beneficial HDL levels, ultimately lowering the risk of stroke.
6. Broccoli
Dr. Gota Mizushima, a hair clinic director, points to broccoli’s potent antioxidant properties, which improve blood circulation and may even support hair growth. Nutritionist Arlene adds that this affordable superfood is rich in calcium, iron, and dietary fibre.
5. Vinegar
Professor Yukimichi Koizumi of Tokyo University of Agriculture explains that acetic acid—vinegar’s active compound—enhances blood circulation and helps lower blood pressure. Dr. Kurihara adds that acetic acid boosts metabolism and reduces visceral fat accumulation.
4. Frozen Tofu (Koya Tofu)
Dr. Minoru Kamata highlights that frozen tofu contains resistant protein, which improves hyperlipidemia and cholesterol profiles. The freeze-drying process concentrates nutrients: frozen tofu boasts five times the calcium and seven times the iron of regular tofu. Its high fibre content also aids detoxification and immunity.
3. Yogurt
Professor Yoriyuki Miura of Japan Women’s University notes that yogurt’s abundant lactic acid bacteria promote gut health, prevent constipation, and enhance nutrient absorption. Certain strains may even reduce visceral fat, making yogurt a potential ally in weight management.
2. Mackerel
Dr. Fumihiko Hirata, a hypertension and diet specialist, emphasises that mackerel’s EPA and DHA omega-3 fatty acids keep blood vessels flexible and healthy. Regular consumption helps control blood pressure and reduces the risk of cardiovascular disease.
1. Natto
The top spot belongs to natto, a fermented soybean dish beloved in Japan but notorious for its strong aroma and sticky texture. Fifty-two doctors cast their votes for natto, citing its wide-ranging benefits: improved gut health, stroke prevention, diabetes management, and reduced risks of cancer, periodontal disease, and osteoporosis. The key compound, nattokinase, is particularly noted for preventing myocardial infarction.
Breakfast of Champions: 20 Foods for Longevity
A separate survey by the Japanese health programme Kenkou Riyuu Motto D interviewed 582 healthy, long-lived individuals about their morning meals. The resulting 20-item breakfast ranking offers practical guidance for starting the day right. While the full list was presented visually, the underlying message is clear: nutrient density and variety matter most at breakfast.
Protein Power: 17 Foods That Outperform Eggs
A third ranking focused on high-protein foods, with some entries containing nearly five times the protein of a single egg. This list serves as a valuable resource for anyone pursuing muscle gain, weight management, or simply a more balanced diet.
What This Means for Your Plate
The consensus among these medical professionals points to a few key principles. Fermented foods—natto, kimchi, and yogurt—dominate the top ranks, underscoring the importance of gut health. Omega-3-rich fish like mackerel and antioxidant-packed produce such as tomatoes and broccoli round out a diet that prioritises disease prevention over mere calorie counting.
For Hong Kong readers, many of these ingredients are readily available. While frozen tofu (koya tofu) may require a trip to a Japanese grocery store, natto can be found in most Asian supermarkets. The takeaway is simple: incorporating even a few of these doctor-approved foods into your weekly rotation could yield significant long-term health benefits.
Next steps: Start small. Swap your morning toast for a bowl of yogurt and fruit, add a side of kimchi to lunch, or experiment with natto on rice. Your body—and your doctors—may thank you.