Sea Moss Superfood Hype: Nutritionist Warns Against Overhyped Health Claims
Despite its unappetising reputation, sea moss – a type of red seaweed – is being celebrated as the latest superfood by wellness influencers and celebrities. This marine plant is typically harvested from the ocean or cultivated in controlled pools, then processed into gels, powders, and gummies. These products are marketed as daily health boosters, often added to drinks or consumed as supplements. The most common variety used in these supplements is Irish moss, a species of red algae.
Social Media Promotion and Nutritional Reality
On social media platforms, sea moss is aggressively promoted as an essential daily health staple. Advocates claim it provides all the vital nutrients the human body requires and can leave skin looking fresher and clearer than ever before. However, registered dietitian Nichola Ludlam-Raine urges consumers to approach these assertions with caution. It has gained popularity via social media as a superfood, but while it contains iodine and some fibre, most health claims about sea moss are overhyped and not backed by strong human evidence, she explains to the Daily Mail. Despite influencers touting it as a miracle food, much about sea moss remains scientifically uncertain.
What Is Actually in Sea Moss?
Typically consumed as a gel – famously blended into smoothies by Kim Kardashian – sea moss is a source of numerous nutrients. In its natural form, it is vegan-friendly, gluten-free, and provides various B vitamins that support nervous system health. It also contains minerals such as calcium, iodine, potassium, sodium, iron, magnesium, and zinc. A standard serving of plain sea moss, about two tablespoons, contains approximately 5 calories, 7mg of sodium, 1g of carbohydrates, and minimal to no sugar, fat, or protein. It may offer small amounts of soluble fibre, which can promote healthy gut bacteria and enhance digestive health. However, some commercially available versions from supermarkets might include added sugar, flavourings, or preservatives, potentially reducing their health benefits.
Potential Health Benefits and Weight Loss Claims
Thanks to its rich mineral content, sea moss could provide several health advantages. Calcium contributes to strong bones, teeth, and muscles, while iron is crucial for maintaining energy levels and preventing fatigue. Magnesium has been associated with muscle relaxation and healthy nerve function, and zinc supports the immune system. Sea moss is also abundant in carrageenan, a compound that might help suppress hunger feelings, though evidence for direct weight loss is limited. Additionally, it contains high levels of vitamin A, beneficial for skin health. However, it does contain sodium, which should be consumed in moderation, and can be high in iodine, making it unsuitable for some individuals. Ms Ludlam-Raine notes, It may contribute small amounts of nutrients and soluble fibre for gut health, but there is no robust evidence it directly causes weight loss beyond any minor impact on fullness.
Safety Concerns and Daily Consumption
Ms Ludlam-Raine advises caution regarding daily sea moss consumption due to its elevated iodine levels. Just one tablespoon of sea moss gel can contain between 56 and 100 micrograms of iodine, equivalent to roughly 37 to 65 percent of an adult's recommended daily intake. Too much iodine can disrupt thyroid function; regular use is not advisable for those with thyroid conditions, and excessive amounts may lead to iodine excess and potential side effects, she warns. She also discourages use by pregnant or breastfeeding patients and recommends that individuals with medical conditions or those taking prescribed medications consult a pharmacist first.
Potential Side Effects and Contamination Risks
Beyond thyroid-related concerns, sea moss might cause digestive issues such as bloating, nausea, and diarrhoea due to its fibre content. Some people may experience allergic reactions, particularly if sensitive to iodine, and those with allergies to seaweed or shellfish are generally advised to avoid it. Additionally, sea moss can absorb heavy metals from its growing environment, depending on the harvest location. Boots Pharmacy advises that anyone experiencing gut upset, mild allergic reactions, or concerns about heavy metal contamination or thyroid health should discontinue use and consult a GP or call NHS 111. Overall, it is recommended to seek advice from a GP or pharmacist before incorporating sea moss into your diet, as effects can vary significantly between individuals.
