When you think about long life and good health, what comes to mind? For one Japanese nutritionist, it is not complicated supplements or expensive trends. It is real, simple food—things you can pick up on a regular trip to Costco.
During a recent visit to a Costco in Kyoto, Japan, this nutritionist shared six traditional foods she could not leave without. These are everyday staples she says help support longevity—and the best part is, many of them are easy to find if you know what to look for. Let us take a closer look.
1. Seaweed is packed with nutrients you probably need more of
If you are not eating seaweed yet, you are probably missing out. It is one of the most nutrient-rich foods out there.
At Costco Japan, the nutritionist found a huge variety, including:
- Mozuku – A slippery, noodle-like seaweed packed with fiber that helps your gut and immune system.
- Nori – Thin sheets perfect for rolling sushi or wrapping rice balls.
- Wakame – Commonly used in miso soup.
- Aosa – A dried seaweed she likes to sprinkle on salads or soup.
She also found other types like kombu and hijiki. These sea vegetables are full of minerals like iodine and magnesium, and they are low in calories but high in health benefits.
2. Soy-based foods like tofu are easy to cook and good for you
Tofu is more than just a meat alternative. It is a complete source of plant protein, and in Japan, it comes in many forms.
Some of her favorite finds at Costco included:
- Freeze-dried koya tofu – Great for busy families. Just soak and cook.
- Frozen, powdered, and fried tofu options – Versatile and delicious.
- Vacuum-sealed soy items – These last long and stay fresh.
She shared one easy recipe: simmer koya tofu with kombu, mushrooms, carrots, and a bit of ginger, then finish it off with miso paste. A simple, satisfying meal.
3. Seasonal Japanese produce that is hard to find in the U.S.
We all know vegetables are good for us. But the variety in Japan is something else.
Some of the standout produce at Costco Japan included:
- Japanese eggplants and cucumbers
- Mushrooms like enoki and shimeji
- Leafy greens like mizuna, komatsuna, and hakusai (Napa cabbage)
- Potatoes from Hokkaido, known for quality and taste
More plant variety means more fiber, antioxidants, and key nutrients that support healthy aging.
4. Ready-to-eat meals that are actually healthy
Not all ready-made meals are junk food. At Costco Japan, the nutritionist found several healthy options, perfect for busy days.
These included:
- Microwavable multigrain rice bowls
- Instant miso soups (just add hot water)
- Cooked fish meals and pickled vegetables
- A wide range of Japanese condiments
They are quick, balanced, and surprisingly affordable compared to similar items in U.S. grocery stores.
5. Traditional rice crackers make better snacks
Instead of chips or candy, she recommends trying rice crackers (called senbei).
At Costco, she found:
- Soy-flavored rice crisps
- Kakino-tane (crescent-shaped crackers with peanuts)
- Crackers made with sesame, soy powder, herbs, and nuts
They are crunchy, flavorful, and usually lower in fat and sugar than typical American snacks.
6. Green tea is more than just a drink—it is a lifestyle
In Japan, green tea is everywhere. And for good reason—it has been linked to heart health and longer life.
The Costco in Kyoto had:
- Bottled green teas
- Loose-leaf and tea bags
- Matcha and powdered teas in large packs
The nutritionist recommends drinking it instead of soda. It is full of antioxidants and can even help you feel more relaxed and focused.
