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Best Bladderwrack Supplements

10 Best Bladderwrack Supplements – Ranked & Reviewed for 2018

If you’re looking for the best bladderwrack supplements to buy this year, then you’ve come to the right place

You can also get more info by jumping to our Bladderwrack Supplements Guide.

Top 10 Bladderwrack Supplements

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#1 Nature's Way Bladderwrack S Nature’s Way Bladderwrack More Info
#2 Oregon's Wild Harvest Bladderwrack Organic S Oregon’s Wild Harvest Bladderwrack Organic More Info
#3 Solaray Bladderwrack S Solaray Bladderwrack More Info
#4 Nature's Answer Bladderwrack Thallus With Organic Alcohol S Nature’s Answer Bladderwrack More Info
#5 Starwest Botanicals Organic Bladderwrack Powder S Starwest Botanicals Organic Bladderwrack Powder More Info
#6 Herb Pharm Bladderwrack Extract S Herb Pharm Bladderwrack Extract More Info
#7 Swanson Bladderwrack Leaves S Swanson Bladderwrack Leaves More Info
#8 Nature's Answer Bladderwrack Thallus S Nature’s Answer Bladderwrack Thallus More Info
#9 Teatox Life Bladderwrack Powder Kelp S Teatox Life Bladderwrack powder Kelp More Info
#10 Naturetition Supplements Ultimate Greens Max S Naturetition Supplements Ultimate Greens Max More Info

Bladderwrack Supplements Guide

Bladderwrack is one type of seaweed. Its scientific name is Fucus vesiculosis. The name “bladderwrack” comes from the air-filled sacs, or bladders, that help the plant float so it can collect the sunlight it needs.

The raw plant is not safe to eat, but dietary supplements can be made from extracts of the plant. It grows naturally in the Pacific Ocean near the Northwestern United States and in the northern Atlantic Ocean.

A similar-sounding supplement name is bladderwort. The two plants are not related and should not be confused for each other.

What is a Bladderwrack Supplement?

Bladderwrack as an ingredient in dietary supplement is also known as Atlantic kelp, black tang, bladder fucus, brown algae, cutweed, kelp, knotted wrack, marine oak, Norwegian seaweed, and rockweed. Even though “Atlantic kelp” is one of the plant’s common names, it is not actually related to kelp.


One common side effect is stomach irritation, which may be accompanied by increased salivation and a “brassy” aftertaste.

Taking excessive amounts of iodine can actually cause thyroid problems, including goiter, rather than help treat or prevent them. Excessive iodine consumption has also been linked to thyroid cancer. People with allergies to iodine should not take any supplements containing bladderwrack. High iodine consumption can also worsen acne.

Those who have blood clotting disorders should avoid taking any supplements that contain bladderwrack. Supplements containing bladderwrack should also be stopped two weeks prior to any scheduled surgeries, since they can cause bleeding problems during surgery. People who’ve had certain hormone-sensitive cancers, such as breast and ovarian cancer, should consult with a health care provider before using bladderwrack supplements.

Blood sugar levels can also be affected by bladderwrack supplements. Those who are taking medications for hypoglycemia or diabetes will need to consult with a health care provider before taking bladderwrack supplements. A health care provider may suggest monitoring blood glucose levels while using the supplement.

Possible Drug Interactions

Those who take medications for thyroid-related conditions or for blood clotting should talk to their health care provider about possible drug interactions before using any supplements with bladderwrack as an ingredient. Antiplatelet and anticoagulant drugs are some of the blood-thinning medications that could possibly interact with bladderwrack supplements.

Other drugs that may interact with bladderwrack supplements may include aspirin, over the counter pain reliever drugs such as ibuprofen and naproxen, birth control pills, lithium, heparin, and warfarin (Coumadin).

Pregnancy and Breast Feeding

In addition, bladderwrack supplements have been linked to higher rates of female infertility. Women who are trying to get pregnant should not take them. People who are pregnant or breast feeding should not use bladderwrack supplements until it can be conclusively established that they are safe. Bladderwrack supplements should also be avoided by children.

Always speak with a medical professional or doctor before taking any supplements. Always read the product label for instructions and directions.

Taking Bladderwrack Supplements

Bladderwrack supplements may be taken in the form of a tablet or capsule. Health food stores may sell bladderwrack supplements in the form of powder, which can be mixed in with other ingredients to make a beverage.

What to Look for in a Good Bladderwrack Supplement

Sea vegetables including bladderwrack can also contain high levels of heavy metals, including arsenic, cadmium, and mercury. Any supplements containing bladderwrack should be tested by the manufacturer to ensure they contain safe levels of heavy metals. Heavy metal toxicity can cause abnormal bleeding, reduced platelet cell count, and kidney and liver damage.