Why Westerners Should Eat More Seaweed

Seaweeds are a highly versatile and nutritious food source that can benefit our diet

For example, many participants in our research imagined seaweed to be ‘smelly’, ‘salty’, and ‘slimy’ when asked. Despite this, many European countries have a history of consuming seaweeds. This includes laver-bread, a savoury puree made from laver seaweed, which is eaten alongside other seafood as part of Welsh cuisine. A sweet alternative is carrageen pudding, a jelly-like dessert made from carrageen seaweed (otherwise known as Irish moss). However, this traditional consumption of seaweed remains somewhat niche today.

Low Consumption 

And with the exception of sushi, seaweed consumption is relatively low in most western countries. In a recent study, we explored how consumers rate seaweeds and potential food products (that could be supplemented with seaweed) when thinking about eating them. We found that people expected seaweed food products (such as seaweed burgers) to be more appealing than seaweed as a general food source. Notably, as participants already expected seaweed products to be healthy and sustainable, these attributes were less important to their acceptance of seaweed. Taste and familiarity were the two factors that had the greatest influence on participants’ willingness to try and buy seaweed-based foods.

Nutritious Food Source

This is useful because seaweeds are a highly versatile and nutritious food source that can benefit our diet. Seaweeds are often rich in fibre and high in vitamins and minerals. This includes iodine and vitamin B12, which can be lacking in vegetarian and vegan diets. And seaweeds can be added to a range of products for their taste as well as how they can be used to thicken soups or stabilise the texture of ice cream. As seaweeds have a umami flavour, many chefs also favour seaweeds as a way to enhance the depth of flavour in their dishes. Thinking about what we eat has become an important environment-related talking point. As more of us try to eat less meat and dairy, we have seen a rise in the consumption of plant-based products (including burger patties, nuggets, and sausages), plant-based milk (soya, almond, rice, and oat milk), and other dairy alternatives (such as dairy-free yoghurt and cheese).

Plant-Based Products 

In the current market, plant-based ‘meat’ is typically made from soya, with other plant-based proteins including peas, mushrooms, and wheat. Importantly, seaweeds and algae could be worthy additions to this list. Though the protein content of seaweed differs between species (particularly as it goes through the production process), protein can account for up to 25% of the dry weight for green seaweeds, and 47% for red seaweeds. This means that seaweeds could be used to supplement the nutritional content of protein alternatives. In particular, seaweeds are often low in sodium. As the salt content of plant-based meat products can be higher than similar products, seaweeds could be used as an alternative seasoning to salt, helping to improve the healthiness of these items while enhancing taste.

Donna Ahern / Checkout