1. Spirulina Contains Natural Antiviral Compounds
Spirulina is rich in sulfated polysaccharides, especially calcium spirulan — a compound shown to inhibit viral replication and entry into host cells.
A study in Antiviral Research (1996) showed Ca-SP inhibited replication of viruses like herpes simplex virus (HSV), HIV-1, influenza A, and human cytomegalovirus.
2. Blocks Virus Entry into Cells
Calcium spirulan works by preventing viruses from attaching to host cells, especially during the early stages of infection.
Research in Journal of Natural Products (1998) confirmed that Ca-SP binds to viral envelope proteins, stopping their ability to infect human cells.
3. Stimulates the Immune System
Spirulina enhances innate and adaptive immunity, which helps the body fight viral infections faster.
A study in Journal of Medicinal Food (2005) showed spirulina increased the activity of natural killer (NK) cells, macrophages, and interferon production, which are crucial in antiviral defense.
4. Anti-Inflammatory Action Helps Prevent Cytokine Storm
Severe viral infections (like COVID-19) can cause a cytokine storm—an excessive immune response. Spirulina’s phycocyanin and antioxidants reduce pro-inflammatory cytokines.
Clinical Immunology (2010) reported that spirulina reduces inflammation while still supporting immune responses.
5. Antiviral Effects Against Specific Viruses
Studies have shown effectiveness against:
HIV-1: Inhibition of virus replication (Journal of Acquired Immune Deficiency Syndromes, 1993)
Influenza virus: Protection by enhancing mucosal immunity (Journal of Nutritional Science and Vitaminology, 2012)
Herpes Simplex Virus: Reduction in viral replication and lesion formation in animal models
6. Supports Respiratory Health
Spirulina’s immune-boosting and antioxidant properties help protect the lungs and respiratory tract from inflammation during viral infections like influenza and RSV.
A clinical study in ISRN Allergy (2013) found spirulina reduced nasal congestion and inflammation in allergic rhinitis—showing broader anti-inflammatory and immune modulation effects in the respiratory system.
7. Safe, Natural, and Well-Tolerated
Unlike synthetic antivirals, spirulina is natural, with a high safety profile, making it suitable for daily immune support.
Sanita K. –
It helped to stabilise an immune system that had been “cracked” by illnesses. A delicious way to improve health. Thank you!
Ilze S. –
Fast delivery, very tasty. I drink my little glass every morning on an empty stomach. It’s currently the first month, I don’t feel any changes yet. I hope it will help strengthen the immune system. My sister recommended it. She has been using this product for 8 months and is very happy. She says she has more energy and hasn’t been sick for the last half year. Thank you for taking care of our health.
Ilze S. –
Fast delivery, very tasty. I drink my little glass every morning on an empty stomach. It’s the first month now, I don’t feel any change so far. I hope it will help to strengthen the immune system. My sister recommended it. She has been using this product for 8 months and is very happy. She says she has more energy and has not been ill for the last six months. Thank you for taking care of our health.
Laura D. –
Energy levels improve noticeably during the day. Fewer hours of sleep at night is enough and I feel more rested and full of energy. My complexion improves. A good remedy for recovering from illness, both for adults and children.
Inese –
After taking Spirulina Nord, I feel a little more energetic. Also, the period of illness (virus) was easier than for others who do not use it. Cravings for sweets have decreased, as well as regular gastric output.
Inese –
After using Spirulina Nord, I feel that I have a little more energy. The period of illness (virus) also went easier than for others who do not use it. The craving for sweets has decreased, and I can also observe regular bowel movements.
Maija A. –
The decision to take Spirulina was and is the best decision of my life…..it helps the body to recover and not get sick after operations and stress…..the results of the tests are also improving…it just seems that Spirulina itself knows what needs to be sorted and restored in our body…..also my mother has started taking this product and her sleep quality has improved, her blood pressure has regulated. This product is worth gold and I recommend it to everyone!
Agnese R. –
Wonderful product, I’ve been using it all winter, it really improves overall vitality and energy levels, as well as resistance to winter viruses, etc. I praise it and recommend it to both relatives and friends.
Eva š. –
I haven’t used this spirulina for a while. I shouldn’t have done that! 🙂 The flavors of both spirulinas seem perfect to me, because I’m a fan of sour fruits and berries. It’s nice that there’s a measuring cup for dosing, that the spirulina is in liquid form, and that it doesn’t “interfere” with my thyroid function. When using this spirulina, I don’t feel any discomfort in my stomach and I have enough energy for the whole day. I’m proud that people who have come up with something so cool live in Latvia!
Ginta Z. –
We have been using it with cranberry syrup for more than 3 months. There is an influx of energy and the immunity has stabilized. The product has been tested and I recommend it to others.