Fucoidan is a complex polysaccharide found in many species of brown seaweed as well as other marine sources. Research identifies this substance
There are a number of diseases that fucoidan may treat including:
- Cancer (i.e. lung, stomach, colon, leukemia
- Canine distemper
- Hepatitis B
- Influenza A
- Metabolic syndromes
For more information, read about the research by Dr. Kohhei Makise, Japan cancer researcher. To begin, here is a website with some good info on fucoidan in cancer treatment: https://www.nutraceuticalbusinessreview.com/news/article_page/The_rise_of_fucoidan_in_integrative_oncology/141610.
To read a review on recent (2019) studies of the therapeutic effects of fucoidan: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780838/.
Okinawans who eat kombu and wakame seaweeds, which contain fucoidan, have some of the longest lifespans in Japan and enjoy a low cancer rate. This is an interesting article about the Okinawan diet: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780838/.