Dulse
Scientific names: Palmaria palmata, Rhodymenia palmata
Family: Palmariaceae
Alternate names: Creathnach, Dillisk, Dilsk, Red Dulse, Sea Lettuce Flakes
Actions: General, Anti-inflammatory, Lipid
Background
Dulse (Palmaria palmata) is a type of red seaweed. It's found on rocky coasts of Europe, Japan, northeastern US, and Canada. It's sometimes eaten as food.
Dulse is a rich source of iodine, potassium, and protein. It has effects that might reduce inflammation and lower cholesterol.
People use dulse for high cholesterol, iodine deficiency, and other conditions, but there is no good scientific evidence to support these uses.
Don't confuse dulse with other types of seaweed, including Ascophyllum nodosum, blue-green algae, and others. These are not the same.
Dulse is a rich source of iodine, potassium, and protein. It has effects that might reduce inflammation and lower cholesterol.
People use dulse for high cholesterol, iodine deficiency, and other conditions, but there is no good scientific evidence to support these uses.
Don't confuse dulse with other types of seaweed, including Ascophyllum nodosum, blue-green algae, and others. These are not the same.
Safety Safety definitions
When taken by mouth: Dulse is commonly consumed in foods. But there isn't enough reliable information to know if dulse is safe to use as medicine or what the side effects might be.
When applied to the skin: Dulse is possibly safe when used appropriately.
Kidney problems: Dulse might cause dangerously high potassium levels in people with kidney problems. Don't take dulse if you have kidney problems.
Thyroid problems: Dulse contains large amounts of iodine. This might make thyroid problems worse. Don't take dulse if you have thyroid problems.
When applied to the skin: Dulse is possibly safe when used appropriately.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Dulse is commonly consumed in foods. But there isn't enough reliable information to know if dulse is safe to use in larger amounts as medicine when pregnant or breast-feeding. Stay on the safe side and stick to food amounts.Kidney problems: Dulse might cause dangerously high potassium levels in people with kidney problems. Don't take dulse if you have kidney problems.
Thyroid problems: Dulse contains large amounts of iodine. This might make thyroid problems worse. Don't take dulse if you have thyroid problems.
Effectiveness
Effective Effectiveness definitions
There is interest in using dulse for a number of purposes, but there isn't enough reliable information to say whether it might be helpful.
Dosing & administration
Dulse is commonly consumed in foods. As medicine, there isn't enough reliable information to know what an appropriate dose of dulse might be. Keep in mind that natural products are not always necessarily safe and dosages can be important. Be sure to follow relevant directions on product labels and consult a healthcare professional before using.
Interactions with pharmaceuticals
Digoxin (Lanoxin)
Interaction Rating=Moderate Be cautious with this combination.
Dulse contains large amounts of potassium. Large amounts of potassium can increase the effects and side effects of digoxin. Talk to your healthcare provider if you take digoxin.
Medications for high blood pressure (ACE inhibitors)
Interaction Rating=Minor Be watchful with this combination.
Dulse contains large amounts of potassium. Some medications for high blood pressure can increase potassium levels in the blood. Taking dulse along with some medications for high blood pressure might cause too much potassium in the blood.
Medications for high blood pressure (Angiotensin receptor blockers (ARBs)
Interaction Rating=Minor Be watchful with this combination.
Dulse contains large amounts of potassium. Some medications for high blood pressure can increase potassium levels in the blood. Taking dulse along with some medications for high blood pressure might cause too much potassium in the blood.
Thyroid hormone
Interaction Rating=Moderate Be cautious with this combination.
The body naturally produces thyroid hormones. Dulse might increase how much thyroid hormone the body produces. Taking dulse along with thyroid hormone pills might increase the effects and side effects of thyroid hormones.
Water pills (Potassium-sparing diuretics)
Interaction Rating=Minor Be watchful with this combination.
Dulse contains large amounts of potassium. Some "water pills" can also increase potassium levels in the body. Taking some "water pills" along with dulse might cause potassium levels to become too high.
Interactions with herbs & supplements
Iodine-containing herbs and supplements: Dulse contains iodine. Taking dulse with other products that contain iodine might cause iodine levels to go too high. This can cause side effects, such as changes in thyroid function. Examples of supplements that contain iodine include seaweed products, such as laminaria and sea moss.
Potassium: Dulse contains potassium. Taking it along with potassium supplements might raise potassium levels too much.
Potassium: Dulse contains potassium. Taking it along with potassium supplements might raise potassium levels too much.
Interactions with foods
There are no known interactions with foods.
Products
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Per 5 g (Chocolate Malt):
- Palmaria palmata (Dulse)
- Hordeum vulgare (Barley)
- Green banana starch 250 mg
- Arthrospira platensis (Spirulina)
- Quercetin 200 mg
- Brassica oleracea var. italica (Broccoli)
- Apple pectin 50 mg
- Larix occidentalis (arabinogalactan) (Larch) 250 mg
- Bacillus coagulans 25 mg
- Punica granatum
- Macrocystis pyrifera (Ocean kelp)
- Brassica oleracea var. acephala (leaf & sprout) powder (Kale)
- Spinacia oleracea (Spinach)
- Daucus carota powder (Carrot)
- Brassica oleracea var. viridis
- Apium graveolens (seed) powder
- Petroselinum crispum
- Citrus bioflavonoids extract 150 mg
- Myrciaria dubia (fruit) powder (Camu Camu)
- Malpighia glabra
- Blueberry flavour
- Zingiber officinale
- Kakadu plum powder
- Theobroma cacao (Cocoa powder)
- Natural flavours
- Pink Himalayan crystal salt
- Ananas comosus (Bromelain) 150 mg
- Origanum vulgare oil
- Thymus vulgaris oil
- Syzygium aromaticum oil
- Mentha x piperita oil
- N-acetyl glucosamine (NAG) 125 mg
- Stevia rebaubiana
- Zinc citrate 7.5 mg
- Chlorella vulgaris powder
- Polyphenolic fulvic minerals 50 mg
150 g Chocolate Malt
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This monograph was last reviewed on 07/12/2023 11:00:00 and last updated on 15/09/2020 01:38:05. Monographs are reviewed and/or updated multiple times per month and at least once per year.
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Natural Medicines rates safety based on scientific evidence according to the following scale: Likely Safe, Possibly Safe, Possibly Unsafe, Likely Unsafe, Unsafe, and Insufficient Evidence to Rate. For more information about Natural Medicines’ Safety Rating System, click here.
The Natural Medicines Effectiveness Ratings are assigned for specific indications. A product might be rated "Possibly Effective" for one condition, but be rated "Likely Ineffective" for another condition, depending on the evidence. For more info click here.
