Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Algae, particularly species such as Spirulina and certain brown and red algae (e.g., Laminaria, Undaria pinnatifida), have been investigated for their potential to support or treat ulcers, especially peptic ulcers. Scientific interest largely centers on their bioactive compounds—such as sulfated polysaccharides, phycocyanin, and antioxidants—which exhibit antimicrobial, anti-inflammatory, and mucosal protective effects in preclinical (animal and in vitro) studies.

For example, studies have shown that extracts from Spirulina may reduce gastric ulceration in rats, possibly by decreasing gastric acid secretion and enhancing mucosal defense. Sulfated polysaccharides from brown algae have demonstrated the ability to inhibit Helicobacter pylori adhesion, which is a key factor in the development of peptic ulcers. Additionally, some algae-derived compounds appear to promote healing by stimulating the production of protective gastric mucus and reducing inflammation.

However, the majority of evidence is preclinical, and robust human clinical trials are lacking. While the historical use of algae in traditional medicine for gastrointestinal health exists (notably in East Asian cultures), the specific use for ulcers is less documented than for general digestive health. As such, the scientific basis for using algae to support or treat ulcers is promising but still preliminary. More rigorous clinical trials are necessary to confirm efficacy and safety for this purpose.

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Nature's Sunshine Super Algae