Vegetarian seafood almost sounds like an oxymoron, a sentence that would amuse vegetarians and vegans and make hardcore meat eaters chuckle. Because seafood has to mean lobster and crab and fish and prawns right? Wrong. Seaweed is the underwater vegetarian marvel that most of us are probably sleeping on. Up until last month, my knowledge of seaweed was as vast as a 5 year old’s on algebra. But on a trip to Coco Shambhala, a boutique property in Sindhudurg, overlooking the Arabian sea, I was acquainted with Indian seaweed. While the calm waters and soft wind soothened my soul and the monkeys tried to establish their dominance in the area, the seaweed story grasped my ever wandering mind. Up until then, I had only known of seaweed in the context of sushi and nothing more. Little did I know that was just the tip of the iceberg.
India is home to over 800 varieties of seaweed, thriving along its coastlines. And yet, most of us have encountered it only in the form of sushi wraps or perhaps as an afterthought in a miso soup. The irony? We’re already consuming seaweed far more often than we realise. It’s just hidden in plain sight. Marine conservationist Gabriella D’Cruz, Founder of The Good Ocean explains that from toothpaste and cough syrups to beer and packaged foods, seaweed-derived compounds—like agar, carrageenan, and alginates—are widely used as stabilisers, gelling agents, and foaming agents. In ingredient lists, they show up as coded additives like E400, E406, or E408, making them practically invisible to the everyday consumer.
But beyond its industrial avatar lies a far more compelling story, one that is dominated by women and largely untold.
Along the coasts of Tamil Nadu, thousands of women head into the sea at around 5 or 6 am, armed with little more than basic tools and limited knowledge. For many of them, widows or women from marginalised communities, seaweed harvesting is not just a job or activism but a lifeline. They wade into shallow waters, manually collecting seaweed, which is then sold by weight.
The system, however, is far from equitable. Low wages mean that earnings are often meagre, pushing harvesters to maximise weight at any cost, even if it means over-harvesting or adding sand to increase volume. The result is a fragile ecosystem under pressure and a workforce stuck in a cycle of undervaluation.
Seaweed is the poster child of sustainability. Unlike conventional agriculture, seaweed requires no freshwater, no fertilisers, and no land. It grows using just salty seawater and sunlight, attaching itself to rocks via a holdfast rather than roots. And it grows fast, up to four times faster than land plants, sometimes several centimetres in a week.
In India, seaweed typically grows between December and April, disappearing in the hotter months. Species like Sargassum can form underwater forests up to 15 feet tall, while others like Ulva or Padina are smaller but equally significant. Regions like Tamil Nadu and Gujarat offer ideal conditions for growth, thanks to their shallow, nutrient-rich waters. But wild harvesting is not enough anymore, neither is it the safest. With rising demand and declining natural stocks, there’s an urgent need to shift towards farming. And that transition isn’t as straightforward as it sounds.
Seaweed farming presents both opportunity and challenge. While open-ocean farming can yield high volumes, it often excludes women due to safety and accessibility concerns. Land-based or near-shore systems are more inclusive but require higher investment and technical know-how.
There’s also the issue of time. A typical seaweed farming cycle lasts about 45 days, which means farmers need a financial buffer to sustain themselves between harvests—something many small-scale workers simply don’t have. Add to that gaps in technology, inconsistent yields, and the need for species-specific cultivation, and it becomes clear that scaling this industry will require both innovation and policy support.
Despite its widespread industrial use, seaweed as food in India is still in its infancy. The biggest barrier? Flavour. Indian palates, accustomed to bold spices and familiar textures, often find seaweed unfamiliar, even intimidating, leading to fewer restaurants wanting to incorporate it in their menus.
But chefs and food innovators are working to change that. Seaweed, after all, is a powerhouse of nutrition—rich in minerals, vitamins, and proteins. On this trip to Coco Shambhala, Goa based Chef Madhav Dayal, Chef Partner at Miguel’s, Goa curated a special seaweed menu for us — infusing several coastal dishes with dehydrated forms of sargassum. Dayal explains that seaweed truly shines with seafood since fresh seaweed has natural salts which can cure your fish to make ceviche or sashimi. Seaweed also shines in broths and sauces adding depth and umami.
From an airy yoghurt and coconut emulsion topped with seaweed to a seaweed and chonak (Asian Bass) ceviche dressed in white soy and coconut vinegar to seared chonak with creamy mashed potatoes, seaweed-chicken jus, citrus gel, and methi cream, the multi-course menu was a rich yet balanced expression of seaweed. But perhaps the most surprising one was the dessert; Feni & Miso brought together barrel-aged feni and miso ice cream, paired with french toast, fresh alphonso mango and candied cashews. The miso added a subtle savouriness that grounded the sweetness, while the feni gave it a distinctly coastal identity.
Since Dayal cooked up a storm with this edible algae and coastal flavours, we had to ask him how to incorporate it into our daily cooking. Dayal says that seaweed most certainly should be a staple in Indian cooking even though it has not been used in the past. It can be easily added into your everyday sabjis, salads or even curries. One can add chopped seaweed in baingan bharta or to the mutton curry in the pressure cooker, or dried seaweed in your atta mix to make rotis nutritious. “The best way to apply seaweed in everyday cooking is — add crunch to your salads by using picked seaweed or add some in your soups for that umami kick, you can even add some chopped seaweed on your morning scrambled eggs,” says Dayal.
Globally familiar varieties like nori, kombu, and wakame are good starting points, but India’s own native species, like Sargassum, are slowly finding their way into kitchens and menus. “The only thing preventing us from getting there is education and awareness. Seaweed can make vegetarian meals nutritious and also flavourful. You will start seeing seaweed in restaurants and bars already before it reaches the Indian household as it’s one of the cool things to work with right now,” says Dayal.
Seaweed still carries a certain ambiguity, often flagged with crustacean allergy warnings, which confuses vegetarian consumers. Fresh seaweed requires cold chain logistics, making it harder to distribute. And without widespread education, it remains a niche ingredient rather than a household staple.
But that is beginning to change. As more people look towards sustainable, plant-based alternatives, seaweed offers a compelling case. It’s nutritious, environmentally friendly, and rooted in local ecosystems. More importantly, it tells a story of coastal communities, women-led labour, and an ingredient that has always been around but never spotlighted.
Vegetarian sea-food may still sound like a contradiction, but perhaps it’s time we let that idea evolve. Because somewhere between a sushi roll and a sachet of toothpaste lies an entire ecosystem waiting to be rediscovered, one that might just change the way we eat, think, and value what’s on our plate.
