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Pacific Seamoss Seaweed For Health


Product Information

Generally, 1 tablespoon (7 grams) of dried spirulina can provide:

• Calories: 20
• Carbs: 1.7 grams
• Protein: 4 grams
• Fat: 0.5 gram
• Fiber: 0.3 grams
• Riboflavin: 15% of the RDI
• Thiamin: 11% of the RDI
• Manganese: 7% of the RDI
• Copper: 21% of the RDI
• Seaweed also contains small amounts of vitamins A, C, E and K, along with folate, zinc, sodium, calcium and magnesium.

*Always consult with your physician before starting any new health and wellness program.


Features and Health Benefits of Seaweed/Algae
Seaweed or sea vegetables are forms of algae that grow in the sea. They’re a food source for ocean life and range in color from red to green to brown to black. Seaweed grows along rocky shorelines around the world, but it’s most commonly eaten in Asian countries such as Japan, Korea and China. It’s extremely versatile and can be used in many dishes, including sushi rolls, soups and stews, salads, supplements and smoothies.



What’s more, seaweed is highly nutritious, so a little goes a long way.

The science-backed benefits of seaweed.

1. Contains Iodine and Tyrosine, Which Support Thyroid Function. Your thyroid gland releases hormones to help control growth, energy production, reproduction and the repair of damaged cells in your body. Your thyroid relies on iodine to make hormones. Without enough iodine, you may start to experience symptoms like weight changes, fatigue or swelling of the neck over time. The recommended dietary intake (RDI) for iodine is 150 mcg per day. Seaweed has the unique ability to absorb concentrated amounts of iodine from the ocean. Its iodine content varies greatly depending on the type, where it was grown and how it was processed. In fact, one dried sheet of seaweed can contain 11–1,989% of the RDI.Seaweed contains a concentrated source of iodine and an amino acid called tyrosine. Your thyroid gland requires both to function properly.

2. Good Source of Vitamins and Minerals

Each type of seaweed has a unique set of nutrients. Sprinkling some dried seaweed on your food not only adds taste, texture and flavor to your meal, but it’s an easy way to boost your intake of vitamins and minerals.
Generally, 1 tablespoon (7 grams) of dried spirulina can provide:

  • Calories: 20
  • Carbs: 1.7 grams
  • Protein: 4 grams
  • Fat: 0.5 gram
  • Fiber: 0.3 grams
  • Riboflavin: 15% of the RDI
  • Thiamin: 11% of the RDI
  • Iron: 11% of the RDI
  • Manganese: 7% of the RDI
  • Copper: 21% of the RDI

Seaweed also contains small amounts of vitamins A, C, E and K, along with folate, zinc, sodium, calcium and magnesium. While it may only contribute to a small percentage of some of the RDIs above, using it as a seasoning once or twice per week can be an easy way to add more nutrients to your diet.

The protein present in some seaweeds, such as spirulina and chlorella, contain all of the essential amino acids. This means seaweed can help ensure you get the full range of amino acids (10,11, 12). Seaweed can also be a good source of omega-3 fats and vitamin B12 (10, 13, 14Trusted Source).

In fact, it appears that dried green and purple seaweed contain substantial amounts of vitamin B12. One study found 2.4 mcg or 100% of the RDI of vitamin B12 in only 4 grams of nori seaweed (14Trusted Source, 15Trusted Source).
That said, there is an ongoing debate about whether your body can absorb and use the vitamin B12 from seaweed (16Trusted Source, 17Trusted Source, 18Trusted Source).


Seaweed contains a wide range of vitamins and minerals, including iodine, iron, and calcium. Some types can even contain high amounts of vitamin B12. Moreover, it’s a good source of omega-3 fats.

3. Contains a Variety of Protective Antioxidants

Antioxidants can make unstable substances in your body called free radicals less reactive (19Trusted Source, 20).

This makes them less likely to damage your cells.
Furthermore, excess free radical production is considered to be an underlying cause of several diseases, such as heart disease and diabetes (21Trusted Source).

In addition to containing the antioxidant vitamins A, C and E, seaweed boasts a wide variety of beneficial plant compounds, including flavonoids and carotenoids. These have been shown to protect your body’s cells from free radical damage (21Trusted Source, 22Trusted Source).

A lot of research has focused on one particular carotenoid called fucoxanthin.

It’s the main carotenoid found in brown algae, such as wakame, and it has 13.5 times the antioxidant capacity as vitamin E (21Trusted Source).

Fucoxanthin has been shown to protect cell membranes better than vitamin A (23).

While the body does not always absorb fucoxanthin well, absorption may be improved by consuming it along with fat (24Trusted Source).

Nevertheless, seaweed contains a wide variety of plant compounds that work together to have strong antioxidant effects (25Trusted Source).


Seaweed contains a wide range of antioxidants, such as vitamins A, C and E, carotenoids and flavonoids. These antioxidants protect your body from cell damage.

4. Provides Fiber and Polysaccharides That Can Support Your Gut Health

Gut bacteria play an enormous role in your health.

It’s estimated that you have more bacteria cells in your body than human cells (26Trusted Source).

An imbalance in these “good” and “bad” gut bacteria can lead to sickness and disease (27Trusted Source).

Seaweed is an excellent source of fiber, which is known to promote gut health (28Trusted Source).

It can make up about 25–75% of seaweed’s dry weight. This is higher than the fiber content of most fruits and vegetables (29Trusted Source, 30Trusted Source).

Fiber can resist digestion and be used as a food source for bacteria in your large intestine instead.

Additionally, particular sugars found in seaweed called sulfated polysaccharides have been shown to increase the growth of “good” gut bacteria (31Trusted Source).

These polysaccharides can also increase the production of short-chain fatty acids (SCFA), which provide support and nourishment to the cells lining your gut (31Trusted Source).


Seaweed contains fiber and sugars, both of which can be used as food sources for the bacteria in your gut. This fiber can also increase the growth of “good” bacteria and nourish your gut.

5. May Help You Lose Weight by Delaying Hunger and Reducing Weight

Seaweed contains a lot of fiber, which does not contain any calories (29Trusted Source).

The fiber in seaweed may slow stomach emptying, too. This helps you feel fuller for longer and can delay hunger pangs (27Trusted Source).

Seaweed is also considered to have anti-obesity effects. In particular, several animal studies suggest that a substance in seaweed called fucoxanthin may help reduce body fat (32, 33Trusted Source, 34Trusted Source).

One animal study found that rats who consumed fucoxanthin lost weight, whereas rats who consumed the control diet did not.

The results showed that fucoxanthin increased the expression of a protein that metabolizes fat in rats (34Trusted Source).Other animal studies found similar results. For example,

fucoxanthin has been shown to significantly reduce blood sugar levels in rats, further aiding weight loss (35Trusted Source, 36Trusted Source).

Although the results in animal studies appear very promising, it’s important that human studies are conducted to verify these findings.


Seaweed may help you lose weight because it contains few calories, filling fiber and fucoxanthin, which contributes to an increased metabolism.

6. May Reduce Heart Disease Risk

Heart disease is the leading cause of death worldwide.  Factors that increase your risk include high cholesterol, high blood pressure, smoking and being physically inactive or overweight.
Interestingly, seaweed may help reduce your blood cholesterol levels (37Trusted Source, 38).

One eight-week study fed rats with high cholesterol a high-fat diet supplemented with 10% freeze-dried seaweed. It found the rats had 40% lower total cholesterol, 36% lower LDL cholesterol and 31% lower triglyceride levels (39).

Heart disease can also be caused by excessive blood clotting. Seaweed contains carbohydrates called fucans, which may help prevent blood from clotting (40Trusted Source, 41Trusted Source).

In fact, one animal study found that fucans extracted from seaweed prevented blood clotting as effectively as an anti-clotting drug (41Trusted Source).

Researchers are also starting to look at peptides in seaweed. Initial studies in animals indicate that these protein-like structures may block part of a pathway that increases blood pressure in your body (42Trusted Source, 43Trusted Source, 44Trusted Source).

However, large-scale human studies are required to confirm these results.


Seaweed may help reduce your cholesterol, blood pressure and risk of blood clots, but more studies are needed.

7. May Help Reduce Your Risk of Type 2 Diabetes by Improving Blood Sugar Control

Diabetes is a major health problem.

It occurs when your body is unable to balance your blood sugar levels over time.

By the year 2040, 642 million people worldwide are expected to have type 1 or type 2 diabetes (45Trusted Source).
Interestingly, seaweed has become a research focus for new ways to support people who are at risk of diabetes (46Trusted Source).

An eight-week study in 60 Japanese people revealed that fucoxanthin, a substance in brown seaweed, may help improve blood sugar control (47Trusted Source).

Participants received a local seaweed oil that contained either 0 mg, 1 mg or 2 mg of fucoxanthin. The study found that those who received 2 mg of fucoxanthin had improved blood sugar levels, compared to the group who received 0 mg (47Trusted Source).

The study also noted additional improvements in blood sugar levels in those with a genetic disposition to insulin resistance, which usually accompanies type 2 diabetes (47Trusted Source).
What’s more, another substance in seaweed called alginate prevented blood sugar spikes in animals after they were fed a high-sugar meal. It’s thought that alginate may reduce the absorption of sugar into the bloodstream (48Trusted Source, 49Trusted Source).

Several other animal studies have reported improved blood sugar control when seaweed extracts are added to the diet (50Trusted Source, 51Trusted Source, 52Trusted Source).


Fucoxanthin, alginate and other compounds in seaweed may help reduce your blood sugar levels, consequently reducing your risk of diabetes.

Possible Dangers of Seaweed

Although seaweed is considered a very healthy food, there may be some potential dangers of consuming too much.
Excess Iodine Seaweed can contain a very large and potentially dangerous amount of iodine. Interestingly, Japanese people’s high iodine intake is considered to be one reason why they are among the healthiest people in the world.

However, the daily average intake of iodine in Japan is estimated to be 1,000–3,000 mcg (667–2,000% of the RDI). This poses a risk to those who consume seaweed every day, as 1,100 mcg of iodine is the tolerable upper limit (TUL) for adults (6, 8Trusted Source).

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 (8Trusted Source).
Additionally, it’s important to note that seaweed is water-soluble, which means cooking and processing it can affect its iodine content. For example, when kelp is boiled for 15 minutes, it can lose up to 90% of its iodine content (8Trusted Source).

While a few case reports have associated iodine-containing kelp consumption and thyroid dysfunction, thyroid function returned to normal once consumption stopped (53Trusted Source, 54Trusted Source).

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.

Heavy Metal Load Seaweed can absorb and store minerals in concentrated amounts (8Trusted Source).

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 (55).
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 (56Trusted Source).

Nonetheless, if you consume seaweed regularly, there is the potential for heavy metals to accumulate in your body over time.
If possible, buy organic seaweed, as it’s less likely to contain significant amounts of heavy metals (56Trusted Source).


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.

The Bottom Line

Seaweed is an increasingly popular ingredient in cuisines all over the world.

It’s the best dietary source of iodine, which helps support your thyroid gland.

It also contains other vitamins and minerals, such as vitamin K, B vitamins, zinc and iron, along with antioxidants that help protect your cells from damage.

However, too much iodine from seaweed could harm your thyroid function.

For optimum health benefits, enjoy this ancient ingredient in regular but small amounts

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