Plant-Based Seafood Gains Ground in Japan’s Health-Focused Food Market
Japanese food companies are rolling out plant-derived alternatives to traditional seafood staples, targeting health-conscious consumers and hospital diets amid rising fish prices and declining catches.
Yamaya Communications Inc., a Fukuoka-based producer, is preparing to launch Daitai Mentaiko, a low-salt alternative to spicy cod roe, in early next year. The new product contains half the sodium of conventional mentaiko, making it a candidate for use in clinical nutrition programs.
The company uses a proprietary starch blend to replicate the small, egg-like texture of pollack roe, then infuses it with a marinade of chili, yuzu, and other seasonings to mimic the signature "pop" of real roe. However, the seasoning liquid still contains fish egg extracts, so it is not vegan-certified.
In western Japan, Kanetetsu Delica Foods Inc. of Hyogo Prefecture introduced Hobo Tako in August—a plant-based substitute for octopus. Made by steaming plant fibers and starches, the product delivers a springy, snappy texture that mimics real octopus meat, ideal for takoyaki and other Kansai-region snacks.
Meanwhile, Ikeda Tohka Industries Co., Ltd. in Hiroshima has engineered flakes from pressed soy protein to replicate the lightweight, dancing motion of dried bonito (katsuobushi) on hot dishes like okonomiyaki. The firm uses plant-based flavor extracts to recreate the deep umami of traditional bonito, and restaurants are already testing it in vegan pasta and Japanese-flavoured bowls.
The drive behind these innovations stems from a sharp drop in marine catches. The prized Akashi octopus—once a staple of Hyogo’s seafood industry—has become scarce and expensive as water temperatures rise and spawning grounds degrade. Japan’s reliance on Russian seafood exports has also been disrupted by recent sanctions, further straining supply chains.
Unlike traditional seafood, these plant-based substitutes rely on stable, climate-independent production, offering manufacturers consistent output regardless of ocean conditions. This reliability makes them attractive for institutional buyers, including hospitals and school cafeterias.
The Japanese government is supporting next-generation food technologies—including plant proteins and fermentation methods—as part of broader efforts to reduce dependency on imported fish and meet shifting dietary demands.
While no hospital studies have yet formally endorsed Daitai Mentaiko for hypertensive patients, Japanese dietary guidelines already recommend reduced sodium intake for cardiovascular health. As such, these products align with broader public health messaging on salt reduction.
For Thailand’s food distributors and upscale Japanese restaurants, these innovations signal a growing category of high-value imports—particularly for clients managing hypertension, following plant-based diets, or seeking sustainable dining options without sacrificing authentic Japanese flavors. Importers should monitor Thai FDA guidelines on novel food ingredients, as plant-based seafood may require additional approval for commercial sale. Early adopters may find opportunities through partnerships with Japanese suppliers who have established export channels into Southeast Asia.
