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Natural remedy

The species of greatest interest is the Fucus vesciculosus L ... It is a very particular alga both in the structure and in the properties. Its thallus can be divided into a sucker-shaped rhizoid, through which it adheres to the rock, a jamb and a frond whose portions have a dichotomous ramification that creates two flattened sheets about 5 cm wide. Being algae they do not constitute particularly evolved organisms and with highly specialized structures.
The peculiarity of these algae is the presence, at the extremity of some of the laminae of the thallus, of small swellings that constitute the gametangi, ie the portions within which the gametes are formed, fundamental for sexual reproduction.
These bulges appear as small spheres that are rich, inside them, with gelatinous substances in which there are the oosphere (female gametes) and anterozoids (male gametes).
The distribution area of ​​these algae is related to the cold seas but there are also some species able to survive at higher temperatures, but losing the ability to reproduce sexually and therefore to differentiate gametanges.
There are stable colonies of Fucus in the British Isles and on the Atlantic coast of Europe. In reality they are also found along the coasts of Morocco but these colonies do not have reproductive structures.
As this species is very useful commercially it is often cultivated. In this regard it exploits its ability to reproduce by vegetative means through the fragmentation of the thallus, thus giving rise to numerous other individuals in a very short time.
The Fucus, once harvested, can survive intact out of the water for only five hours, after which it will die with all the consequences.

Beneficial features

Among the most known substances present in the Fucus are the mucopolysaccharides among which the laminarina, the fucoidan and the alginic acid stand out. Laminarin is one of the most important sources of algae reserves.
Sterols are also very important in this regard and among them we find the fucoxanthin which is a xanthophyll, the tetraterpene, which has a repeated structure of five carbon atoms, and fucosterol.
No less important are polar lipids such as diglycerides phosphates, polyesters and galactolipids. Finally, among the substances contained in Fucus we find some polyphenolic compounds such as fucoli, florotannini and phenylfloroglucinol.

Why use fucus

Fucus can be used for the most varied functions due to the large amount of different substances that carry out numerous beneficial activities for the body.
As part of the diet, fucus is an excellent aid in the slimming phase thanks to its ability to stimulate the basal metabolism. Not only does it take care to act on a hormonal level, but taken directly through capsules or tablets, it manages to create a gel inside the stomach, generating a sense of satiety that allows therefore to ingest less food.
Phytotherapy uses this type of seaweed especially for the treatment of subjects that present problems related to thyroid function, particularly in patients suffering from hypothyroidism, and is an excellent iodine supplement.
Thanks to the presence of alginates in the thallus of this alga, it is particularly suitable for fighting gastro-oesophageal reflux because a protective barrier is created inside the stomach consisting of a gelatinous substance.
Also in the food industry the Fucus plays a very important role, in fact, thanks to alginates, it can be used as natural rubber for the production of both cheeses and desserts such as puddings.
In agriculture it is used as forage or herbal medicine.
Linked to diet treatments and to maintain proper physical fitness is the use of Fucus for the creation of anti-cellulite and slimming products.


The Fucus can appear in different ways depending on the function it has to perform. In the case of the aid it provides in the diet, it can be administered through simple tablets that can be taken with water one to three times a day. This alga is a herbal dietary supplement that can be taken in the same form also to combat problems related to gastritis.
In the case of the cosmetic use of Fucus, you can buy creams or gels inside which are included alginates or other substances extracted from this alga. Their dosage varies depending on the need, but in general they are used twice a day to spread on the part affected by the imperfections.


The Fucus is an alga and its extracts are defined as natural, but this does not mean that we should not consider simple rules for taking them. Specifically it is necessary for women who are pregnant or breastfeeding to limit the intake of Fucus both orally and via the skin. In reality, no harmful effects have been found for minimal intakes, but the risks are present, therefore, it is necessary to seek advice from your doctor.
It is important to avoid taking Fucus by patients suffering from hyperthyroidism since the effect would be to increase the functioning of the thyroid.
Also in the case of hypertensive subjects the use of the Fucus is not recommended.
Finally, it must be considered that this algae brings benefits if used for limited periods of a few weeks and above all thanks to the pauses made between them.