Many traditional Japanese sweets are built from beans, rice and seaweed jelly, yet a few common ones include egg, milk or other allergens.
Published October 21, 2026 at 8:14 PM JST | By Tokyo Paul
Quick answer: Many classic wagashi are plant-based, since they are made from azuki beans, rice flour, sugar and agar (a seaweed-based gelling agent). But not all are vegan: castella and dorayaki use eggs, and modern sweets may include cream, custard or ice cream. Ingredients vary by maker, so check the label or ask the shop. Allergens such as wheat, buckwheat, egg, milk and nuts can appear.
Visitors with plant-based diets or food allergies often wonder whether Japanese sweets are a safe choice. The honest answer is that the traditional core of wagashi leans plant-based, but many popular sweets include exceptions. Labels are usually written in Japanese, and the word vegan is not always printed. This guide explains the common ingredients, the sweets that need a second look, and the practical steps for reading a label or asking a shop. It is general information, not medical or dietary advice, and readers with allergies should confirm details with the maker.
Wagashi is traditional Japanese confectionery, and its typical ingredients come from plants. Wagashi is generally described as mostly plant-derived, made from grains, beans, starch and sugar. The foundation is anko, a sweet paste of azuki (red) beans and sugar. It comes smooth (koshian), with bean bits (tsubuan), or as a paler white bean paste.
Other building blocks are rice and glutinous rice, ground into flours that give mochi, dango and many fillings their chew. Together with sugar, these simple foods explain why wagashi has a reputation as a lighter style of sweet. That reputation is a fair general starting point, but it is not a guarantee for every product on the shelf.
Yokan, the firm bean jelly, and several summer sweets are set with agar, known as kanten in Japan. Agar is made from the cell walls of certain red seaweeds, and because it comes from plants rather than animals, it is widely used as a vegetarian substitute for gelatin. According to tradition, Japan's agar-making method is credited to Mino Tarozaemon, a Kyoto innkeeper, who is believed to have discovered it around 1658.
Agar is why yokan, mizu yokan and many jelly desserts such as anmitsu are often plant-based. That said, makers can add other ingredients, so a quick look at the label is still wise. Gelatin does appear in some modern sweets, and it is on the list of items that Japanese authorities encourage makers to flag on labels.
Mochi is made from glutinous rice or its flour, with water, sugar and starch to stop it sticking. Dango uses a mix of regular and glutinous rice flour. Both are naturally free of dairy and eggs in their basic forms, and the same goes for gyuhi, a soft dough made from glutinous rice flour that is used in some sweets, including certain nerikiri.
Fillings change the picture, though. Mochi can be filled with anko, white bean paste, black sesame paste, peanut paste or ice cream, and a modern daifuku may hold cream, custard or pudding. Mochi ice cream usually contains dairy. A plain bean-filled daifuku is a different product from a cream daifuku, even if the outside looks the same.
Castella is the classic exception. This sponge cake, introduced to Japan by Portuguese traders in the sixteenth century, is made with flour, sugar, eggs and syrup, so it is not vegan. Dorayaki, the pancake-like sandwich of azuki paste, is built from soft pancake-style patties, and fruit, pudding or parfait versions exist.
Taiyaki, the fish-shaped street snack, uses a pancake or waffle-style batter that may include egg and milk, depending on the shop. Baked manju and other oven-baked sweets can also include egg or dairy in the dough or filling depending on the recipe, so it pays to check. As a rule, anything baked and sponge-like deserves a second look.
Japan's food labeling rules require packaged foods to indicate certain specific allergens, including shrimp, crab, walnuts, wheat, buckwheat, egg, milk and peanuts. According to the Tokyo Metropolitan Government, a longer list of about twenty further items is recommended for labeling, including almonds, sesame, soybeans, gelatin and several others. These lists are revised from time to time, so the current rules are best confirmed with the Consumer Affairs Agency or the Tokyo Metropolitan Government.
Several of these appear in wagashi. Wheat is the usual flour in manju and dorayaki, buckwheat flour is used in some manju skins, soy appears in kinako (toasted soybean flour), and sesame and nuts show up in fillings and toppings. Because small shops may not print an allergen table on every item, ask the staff if you have a food allergy.
Packaged sweets usually list ingredients in Japanese, often with allergens shown in a separate line or in brackets. Useful words include tamago (egg), nyu or gyunyu (milk), komugi (wheat), soba (buckwheat), rakkasei (peanut), kurumi (walnut) and zerachin (gelatin). A translation app can help you scan the printed text.
Keep in mind that the label describes the product, not the entire kitchen. Many small shops make several sweets in one workspace, and the label may not cover shared equipment. If your allergy is severe, speak to your doctor and the shop before you buy, and do not rely on a general guide such as this one.
Start with simple, single-ingredient sweets: plain yokan, plain mochi, dango with a soy glaze or bean paste, and warabimochi with toasted soy flour. Ask the shop whether a sweet contains egg, milk, honey or gelatin. Honey, brown sugar or molasses can replace some sugar in certain recipes, and that matters for strict vegans.
If a staff member does not know, it is perfectly acceptable to choose a different sweet. Fresh seasonal sweets in specialty shops are often prepared by hand, and the shopkeeper can usually describe what is inside. A kind, simple question such as tamago to nyu wa haitte imasu ka (does it contain egg or milk?) is generally well received.
Japan does not always use the word vegan on sweets, and recipes can differ from one maker to the next. Strict vegans may want to contact the maker directly through its official website. Ingredients also change over time, so check each purchase, not just the first one.
For many travelers, a calm approach works best. Look for sweets built from beans, rice and agar, ask a question or two, and treat the label as the final word. With a little care, wagashi can be an enjoyable part of a trip.
Want to go deeper? Tokyo Paul's book 30 Japanese Wagashi, Seasonal Sweets, and Childhood Classics is available on Amazon.
Anko, the sweet paste of azuki beans and sugar, is plant-based in its basic form. Some recipes may use honey or other additions, and a filling can be flavored in other ways. Check the label or ask the shop to be sure.
Plain mochi is made from glutinous rice, water and sugar, so it is usually plant-based. Fillings and coatings matter: mochi ice cream usually contains dairy, and cream or custard daifuku are not vegan. Check the label for each product.
Traditional yokan is set with agar, a gelling agent from seaweed, not with animal gelatin. Ingredients vary by maker, though, so read the label if you avoid gelatin. Plain bean yokan is a common starting point for plant-based eaters.
To explore further, see Allergen labeling in Japan, Tokyo Metropolitan Government, Agar, English Wikipedia and Wagashi, English Wikipedia.
More guides from Tokyo Paul: Yokan and Manju: Bean Paste Sweets with Centuries of Craft, Vegetarian and Vegan Dining in Japan: Practical Tips and Dining With Allergies in Japan.