Several other animal studies have reported improved blood sugar control when seaweed extracts are added to the diet 50 , 51 , Fucoxanthin, alginate and other compounds in seaweed may help reduce your blood sugar levels, consequently reducing your risk of diabetes. Although seaweed is considered a very healthy food, there may be some potential dangers of consuming too much. This poses a risk to those who consume seaweed every day, as 1, mcg of iodine is the tolerable upper limit TUL for adults 6 , 8.
Fortunately, in Asian cultures seaweed is commonly eaten with foods that can inhibit the uptake of iodine by the thyroid gland. These foods are known as goitrogens and found in foods like broccoli, cabbage, and bok choy 8. While a few case reports have associated iodine-containing kelp consumption and thyroid dysfunction, thyroid function returned to normal once consumption stopped 53 , Nevertheless, high amounts of seaweed can affect thyroid function, and symptoms of too much iodine are often the same as symptoms of not enough iodine 6.
If you think you are consuming too much iodine and experience symptoms like swelling around your neck region or weight fluctuations, reduce your intake of iodine-rich foods and talk to your doctor. Seaweed can absorb and store minerals in concentrated amounts 8.
This poses a health risk, as seaweed can also contain large amounts of toxic heavy metals such as cadmium, mercury and lead. That said, the heavy metal content in seaweed is usually below the maximum concentration allowances in most countries A recent study analyzed the concentration of 20 metals in 8 different seaweeds from Asia and Europe. It found that the levels of cadmium, aluminum and lead in 4 grams of each seaweed did not pose any serious health risks Nonetheless, if you consume seaweed regularly, there is the potential for heavy metals to accumulate in your body over time.
Seaweed can contain a lot of iodine, which can impact thyroid function. Seaweed can also accumulate heavy metals, but this is not considered a health risk.
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Enriched with a sea salt base, plus seaweed, juniper and eucalyptus, this aromatic, all-natural bath soak awakens the senses and purifies the body for ultimate relaxation mode.
In addition to being good for your skin, seaweed is also good for your hair—as it can repair damaged strands caused by over-styling. Think again! Enriched with seaweed, sea lavender and a blend of rice, soy and wheat protein, this Strengthening Mask works to reveal fresher, healthier-looking curls in no time.
Above all, seaweed provides a lot of anti-aging benefits and can promote younger-looking skin all around. Why, you ask? Try: Repecharge C-Serum Seaweed Filtrate Thanks to its ability to promote collagen production, seaweed is an excellent ingredient for anti-aging skin care products.
One of our favorites? Repecharge C-Serum Seaweed Filtrate. This anti-aging serum also contains antioxidant-rich carrageenan extract derived from red algae to shield the skin from harmful environmental aggressors. Because of its detoxing benefits, seaweed can also help deep cleanse the skin and improve its overall health.
Try: Phytomer Seaweed Soap Looking for a gentle soap that multitasks to give you ultra-clean and smooth skin? Look no further than Phytomer Seaweed Soap. Intrigued, we turned to the leading industry experts to learn more about what magic this botanical ingredient can work on your skin.
Meet the Expert. Below, esthetician Lydia Sarfati and double board-certified dermatologist Dr. Brendan Camp, MD, speak to the benefits of seaweed and how incorporating it into your routine can be just as beneficial in your beauty products as it is in your meals.
Main Benefits: Regulates oil production, exfoliates, brightens, and moisturizes dry, dull skin. Who should use it: Anyone looking for hydrating and exfoliating benefits. Also, those with acne, rosacea, and skin sensitivities will benefit from its healing properties. Works well with: Seaweed extract is compatible with many ingredients, although it can be used alone. These include Vitamin B 3 , hyaluronic acid, peptides, and botanical extracts. Don't use with: There are no specific ingredients known to have a negative interaction with seaweed, but Sarfati notes it's always best to work with your skincare professional or esthetician when creating a full skincare program.
Seaweed is the name given to species of marine plants and algae that grow in oceans, rivers, and lakes. She notes the composition of seaweed is what makes it such an incredible ingredient.
Through her research, Sarfati was able to identify over 13 different types of seaweed that can be used to create a number of beneficial cosmetic effects.
Both Camp and Sarfati agree seaweed possesses a ton of skincare benefits and healing properties, addressing everything from excess oil to fine lines and wrinkles. Those with dry, sensitive, and acne-prone skin as well as those looking for anti-aging properties will benefit from seaweed. While there are no known negative side effects, Camp recommends spot-testing on the inside of your arm for a few days if you have sensitive skin. If you have a powder form of organic kelp, you can use that to mix into your own DIY mask.
A Byrdie-approved skincare product featuring marine-sourced ingredients, this moisturizer promises to calm redness and irritation while stimulating metabolic turnover for glowy, hydrated skin. She recommends this as the first step to the brand's iconic Four-Layer Facial for more luminous skin. Users of this Byrdie-loved retinol oil will notice overnight hydration that lasts all day, a decrease in overall redness, and plumper looking skin.
The perfect final step to your skincare routine, this nutrient-packed oil is packed with vitamin A, powerful algae extracts, and 1. Camp recommends this as a lightweight daily moisturizer for oily skin types. It contains three nutrient-rich algae extracts along with vitamin E and a blend of seven botanical extracts to hydrate without leaving behind a greasy residue.
Seaweed is an umbrella term for plants and algae that grow in all bodies of water. Some different type of seaweed that are beneficial for skin include red algae, kelp, giant kelp, sea spaghetti, carrageenan, and brown seaweed.
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